Articles

2025

• Insights into the Piezo-photocatalytic Activity and Optimized Magnetic Recovery of Hybrid Bismuth Ferrite-based Nanosystems, Nanoscale Advances (2025).  P. Maltoni,   N. Ghibaudo,   A. Kumar,   G. Barucca,   M. Vocciante,   F. Locardi,   G. Varvaro,   S. Slimani,   M. Ferretti,   T. Sarkar,   A. Reverberi,   S. Alberti,  D. Peddis. https://doi.org/10.1039/D5NA00646E  

• Novel Formulation of Ionic Liquid-Based Ferrofluids: Investigation of the Magnetic Properties, Langmuir (2025) 11977. A. Talone, P. Maltoni, M. Casale, M. Abdolrahimi, S.Slimani, D. Colombara, L. Leoncino, P. Imperatori, S. Laureti, G. Varvaro, D. Peddis. https://doi.org/10.1021/acs.langmuir.5c00403 

• On the use of magnetite nanoparticles as filler for 3D printing of polyether‐ether‐ketone‐based soft magnets, Polym. Compos. (2025) pc.29622. L. Paleari, G. Varvaro, F. Nanni, M. Ferrara, D. Peddis, M. Rinaldi, M. Meisnar, M. Bragaglia. https://doi.org/10.1002/pc.29622.

• Engineering hard ferrite composites by combining nanostructuring and Al3+ Substitution: From nano to dense bulk magnets, Acta Mater. 282 (2025) 120491. P. Maltoni, G. Barucca, B. Rutkowski, S.A. Ivanov, N. Yaacoub, A. Mikheenkova, G. Ek, M. Eriksson, B. Almqvist, M. Vasilakaki, G. Varvaro, T. Sarkar, J.A. De Toro, K. Trohidou, D. Peddis, R. Mathieu. https://doi.org/10.1016/j.actamat.2024.120491.

2024

• [CHAPTER] Magnetic Micro- and Nanodisks: A Bridge Between Thin Films and Nanoparticles in Magnetic Nanoparticles: Materials Engineering, Properties and Applications, Ed. A. López-Ortega and A. Gómez Roca, Royal Society of Chemistry, 2024, vol. 63, ch. 4, pp. 76-101, https://doi.org/10.1002/adfm.202101089 

• Structural and Magnetic Properties of CoFe2 O4 Nanoparticles in an α-Fe2 O3 Matrix, J. Phys. Chem. C. 129 (2025) 591–599. P. Maltoni, G. Varvaro, N. Yaacoub, G. Barucca, J.P. Miranda-Murillo, J. Tirabzonlu, S. Laureti, D. Fiorani, R. Mathieu, A. Omelyanchik, D. Peddis. https://doi.org/10.1021/acs.jpcc.4c05320.

• In-plane hard magnetic BaFe12O19 thin films grown on a-plane Al2O3 substrates, Phys. Scr. 99 (2024) 0959a7. N. Joseph, C. Holzmann, G. Varvaro, M. Albrecht and S. Thomas. https://doi.org/10.1088/1402-4896/ad6f78 

• Unraveling exchange coupling in ferrites nano-heterostructures, Small 20 (2024), 2304152. P. Maltoni, G. Barucca, B. Rutkowski, M. C. Spadaro, P. E. Jönsson, G. Varvaro, N. Yaacoub, J. A. De Toro, D. Peddis, R. Mathieu. https://doi.org/10.1002/smll.202304152

• Facile and fast synthesis of highly ordered L10-FeNi nanoparticles, Scr. Mater. 238 (2024) 115754. G. Varvaro, P. Imperatori, S. Laureti, D. Peddis, F. Locardi, M. Ferretti, C. Cannas, M.S. Angotzi, N. Yaacoub, A. Capobianchi. https://doi.org/10.1016/j.scriptamat.2023.115754.

• Dipolar skyrmions and antiskyrmions of arbitrary topological charge at room temperature, Nat. Phys. 20 (2024) 615. M. Hassan, S. Koraltan, A. Ullrich, F. Bruckner, R.O. Serha, K.L. V., G. Varvaro, N.S. Kiselev, M. Heigl, C. Abert, D. Suess, M. Albrecht. https://doi.org/https://doi.org/10.1038/s41567-023-02358-z.

• Extending the Pre-ordered Precursor Reduction strategy to L10 ternary alloys: the case of MnFePt, J. Alloys Compd. 1008 (2024) 176650. A. Capobianchi, P. Imperatori, C. Cannas, N. Rusta, F. Locardi, S. Slimani, M. Ferretti, D. Peddis, F. D’Acapito, Z. Tauanov, S. Laureti, G. Varvaro. https://doi.org/10.1016/j.jallcom.2024.176650. 

• Magnetic CuFe2O4 Nanoparticles Immobilized on Modified Rice Husk-Derived Zeolite for Chlorogenic Acid Adsorption, Magnetochemistry. 10 (2024) 87. T.R. Neves, L.F.L. Schildt, M.L.L.S.E. Silva, V.V.V. Vasconcelos, C. Di Conzo, F. Mura, M. Rossi, G. Varvaro, M. Abdolrahimi, S. Quaranta, S.A.D. Ferreira, E.C. Paris. https://doi.org/10.3390/magnetochemistry10110087. 

2023

• Time and temperature dependent magnetic viscosity experiments on Sr/Co nanoferrite particles, J. Appl. Phys. 133 (2023) 163902. P. Maltoni, G. Varvaro, M. Abdolrahimi, D. Peddis, R. Mathieu. https://doi.org/10.1063/5.0144701.

• Co/Pd-based spin-valves with perpendicular magnetic anisotropy on flexible substrates . Direct deposition vs transfer-and-bonding approaches, Appl. Surface Sci. 635 (2023)  157740 In Press. M. Hassan, S. Laureti, C. Rinaldi, F. Fagiani, A. Gerardino, N. Schmidt, M. Fix, G. Varvaro. https://doi.org/10.1016/j.apsusc.2023.157740.

• Synthesis of highly ordered L10 MPt alloys (M = Fe, Co, Ni) from crystalline salts: an in situ study of the pre-ordered precursor reduction strategy, J. Mater. Chem. C (2023) 16661–16671. S. Laureti, F. D’Acapito, P. Imperatori, E. Patrizi, G. Varvaro, A. Puri, C. Cannas, A. Capobianchi. https://doi.org/10.1039/d3tc02262e.

2022

• [CHAPTER] Ferroic Transition Metal Oxide Nano-heterostructures: From Fundamentals to Applications, in “Tailored Functional Oxide Nanomaterials: From Design to Multi-Purpose Applications”, C. Maccato and D. Barreca Eds., Wiley-VCH GmbH (2022). G. Varvaro, A. Omeliyanchik, D. Peddis. https://doi.org/10.1002/9783527826940.ch12

• [CHAPTER] Curvilinear Magnetic Shells, in "Curvilinear Micromagnetism from Fundamamental to Applications", D. Makarov, D. Sheka Eds., Springer Nature Switzerland AG (2022). D. Sheka, V.P. Kravchuk, D. Peddis, G. Varvaro, M. Krupiński, M. Albrecht, D. Erb, S. Facsko, D. Makarovs. https://doi.org/10.1007/978-3-031-09086-8_3

• Thin-Film Heterostructures Based on Co/Ni Synthetic Antiferromagnets on Polymer Tapes: Toward Sustainable Flexible Spintronics, ACS Appl. Mater. Interfaces  12 (2022) 51496–51509. M. Hassan, S. Laureti, C. Rinaldi, F. Fagiani, G. Barucca, F. Casoli, A. Mezzi, E. Bolli, S. Kaciulis, M. Fix, A. Ullrich, M. Albrecht, G. Varvaro. https://doi.org/10.1021/acsami.2c14000

• Disclosing the Nature of Asymmetric Interface Magnetism in Co/Pt Multilayers, ACS Appl. Mater. Interfaces 14 (2022) 12766–12776. A. Verna, P. Alippi, F. Offi, G. Barucca, G. Varvaro, E. Agostinelli, M. Albrecht, B. Rutkowski, A. Ruocco, D. Paoloni, M. Valvidares, S. Laureti. https://doi.org/10.1021/acsami.1c22341.

• Physico-magnetic properties and dynamics of magnetite (Fe3O4) nanoparticles (MNPs) under the effect of permanent magnetic fields in contaminated water treatment applications, Sep. Purif. Technol. 296 (2022) 121342. P.P. Falciglia, E. Gagliano, P. Scandura, C. Bianco, T. Tosco, R. Sethi, G. Varvaro, E. Agostinelli, C. Bongiorno, A. Russo, S. Romano, G. Malandrino, P. Roccaro, F.G.A. Vagliasindi. https://doi.org/10.1016/j.seppur.2022.121342.

• Micro-extruded LaSrCuFeO-based polystyrene magnetic composites: Morphological and magnetic characterization, J. Alloys Compd. 917 (2022) 165499. R. Pelosato, I.N. Sora, C. Leonelli, P. Russo, F. Cimino, C. Mortalò, G. Varvaro, E. Marchetti, E. Agostinelli. https://doi.org/10.1016/j.jallcom.2022.165499.

• High Moment FeCo magnetic nanoparticles obtained by topochemical H2 reduction of Co-ferrites, Appl. Sci. 12 (2022) 1899. A. Omelyanchik, G. Varvaro, P. Maltoni, V. Rodionova, J.P.M. Murillo, F. Locardi, M. Ferretti, C. Sangregorio, F. Canepa, P. Chernavsky, N. Perov, D. Peddis. https://doi.org/10.3390/app12041899.

• Synthesis and use in catalysis of hematite nanoparticles obtained from a polymer supported Fe(III) complex, Eur. J. Inorg. Chem. (2022) e202100943. A.M. Fiore, G. Varvaro, E. Agostinelli, A. Mangone, E. De Giglio, R. Terzano, I. Allegretta, M.M. Dell’Anna, S. Fiore, P. Mastrorilli. https://doi.org/10.1002/ejic.202100943.

• Synthesis of Fe2O3 nanoparticles and their catalytic activity for the reduction of halonitroarenes under sustainable conditions synthesis of Fe2O3 nanoparticles and their catalytic activity for the reduction of halonitroarenes under sustainable conditions , Macromolecular Symposia 404 (2022) 2100289. A.M. Fiore, I. Allegretta, R. Terzano, G. Romanazzi, E. Agostinelli, G. Varvaro, P. Mastrorilli, M. Catauro, M. Michela, D. Anna. https://doi.org/10.1002/masy.202100289.

2021

• Complex correlations between microstructure and magnetic behavior in SrFe12O19 hexaferrite nanoparticles, Sci. Rep. 11 (2021). P. Maltoni, S.A. Ivanov, G. Barucca, G. Varvaro, D. Peddis, R. Mathieu. https://doi.org/10.1038/s41598-021-02782-2. 

• Magnetism of nanoparticles: Effect of the organic coating, Nanomaterials. 11 (2021). M. Abdolrahimi, M. Vasilakaki, S. Slimani, N. Ntallis, G. Varvaro, S. Laureti, C. Meneghini, K.N. Trohidou, D. Fiorani, D. Peddis. https://doi.org/10.3390/nano11071787.

• Exploring the magnetic properties and magnetic coupling in SrFe12O19/Co1-xZnxFe2O4 nanocomposites. J. Magn. Magn. Mat. 535 (2021) 168095. P. Maltoni, T. Sarkar, G. Barucca, G. Varvaro, D. Peddis, R. Mathieu. https://doi.org/10.1016/j.jmmm.2021.168095

• Flexible Magnetoreceptor with Tunable Intrinsic Logic for On‐Skin Touchless Human‐Machine Interfaces. Adv. Funct. Mater. (2021) 2101089. P. Makushko, E. Sergio Oliveros Mata, G. Santiago Cañón Bermúdez, M. Hassan, S. Laureti, C. Rinaldi, F. Fagiani, G.i Barucca, N. Schmidt, Y. Zabila, T. Kosub, R. Illing, O. Volkov, I. Vladymyrskyi, J. Fassbender, M. Albrecht, G. Varvaro*, D. Makarov*. https://doi.org/10.1002/adfm.202101089 

Back Cover

• Perpendicularly magnetized Co/Pd-based magneto-resistive heterostructures on flexible substrates. Nanoscale Adavances 3 (2021) 3076. M. Hassan,   S.Laureti,   C. Rinaldi,   F. Fagiani,   S.Varotto,   G. Barucca,   N. Schmidt,   G. Varvaro*  and  M. Albrecht. https://doi.org/10.1039/D1NA00110H. This article is part of the themed collection: Nanoscale Advances HOT Article Collection

• Tuning the Magnetic Properties of Hard–Soft SrFe12O19/CoFe2O4 Nanostructures via Composition/Interphase Coupling. J. Phys. Chem. C 125 (2021) 5927. P. Maltoni, T. Sarkar, G. Barucca, G. Varvaro, F. Locardi, D. Peddis, R. Mathieu. https://doi.org/10.1021/acs.jpcc.1c00355

• The role of chemical and microstructural inhomogeneities on interface magnetism. Nanotechnology 32 (2021) 205701. S Laureti, A Gerardino, F D'Acapito, D Peddis, G Varvaro. https://doi.org/10.1088/1361-6528/abe260

• Towards bi-magnetic nanocomposites as permanent magnets through the optimization of the synthesis and magnetic properties of SrFe12O19 nanocrystallites.  J. Phys. D: Appl. Phys. 54 (2021) 124004. P. Maltoni, T. Sarkar, G. Varvaro, G. Barucca, S. Ivanov, D. Peddis, R. Mathieu. https://doi.org/10.1088/1361-6463/abd20d

• Focus on Metastable, Amorphous and Nanostructured Materials: Editorial note for the special issue - ISMANAM 2018. J. Alloys Compd. 854 (2021). D. Peddis, S. Laureti, G. Varvaro. https://doi.org/10.1016/j.jallcom.2020.157009.

2020

• Anomalous Hall effect in antiferromagnetic/nonmagnetic interfaces. Phys. Rev. Res. 2 (2020) 043394. M. Asa, C. Autieri, R. Pazzocco, C. Rinaldi, W. Brzezicki, A. Stroppa, M. Cuoco, G. Varvaro, S. Picozzi, M. Cantoni. https://doi.org/10.1103/PhysRevResearch.2.043394

• Insight into the magnetisation process of martensitic Ni–Mn–Ga films: a micromagnetic and vector magnetometry study. J. of Phys.: Mat. 3 (2020) 045003. F. Casoli, G.Varvaro, M. T. Ghahfarokhi, S. Fabbrici, F. Albertini. https://doi.org/10.1088/2515-7639/abb0ee

• Obsidian as a raw material for eco-friendly synthesis of magnetic zeolites. Materials 13 (2020) 1–12. C. Belviso, D. Peddis, G. Varvaro, M. Abdolrahimi, A.P. Reverberi, F. Cavalcante. https://doi.org/10.3390/ma13204633.

• A Special Section on Metastable, Amorphous and Nanostructured Materials. J. of Nanoscience and Nanotechnology 20 (2020) 4537. G. Varvaro, E. Agostinelli, S. Laureti. https://doi.org/10.1166/jnn.2020.17864

• Collective spin waves in arrays of asymmetric and symmetric width nanowires: Effect of the film layering sequence. J. Phys. D.: Appl. Phys. 53 (2020) 135001. G. Gubbiotti, X. Zhou, A.O. Adeyeye, G. Varvaro, M. Kostylev. https://doi.org/10.1088/1361-6463/ab605a.

• Effect of exchange and dipolar interlayer interactions on the magnonic band structure of dense Fe/Cu/Py nanowires with symmetric and asymmetric layer widths. Phys. Rev. B. 101 (2020) 224431. G. Gubbiotti, X. Zhou, A.O. Adeyeye, G. Varvaro, M. Kostylev. https://doi.org/10.1103/PhysRevB.101.224431.

• Magnetocrystalline and surface anisotropy in CoFe2O4 nanoparticles. Nanomaterials 10 (2020) 1–11. A. Omelyanchik, M. Salvador, F. D’orazio, V. Mameli, C. Cannas, D. Fiorani, A. Musinu, M. Rivas, V. Rodionova, G. Varvaro, D. Peddis. https://doi.org/10.3390/nano10071288.

• Symbiotic, low-temperature, and scalable synthesis of bi-magnetic complex oxide nanocomposites. Nanoscale Adv. 2 (2020) 851–859. F. Sayed, G. Kotnana, G. Muscas, F. Locardi, A. Comite, G. Varvaro, D. Peddis, G. Barucca, R. Mathieu, T. Sarkar. https://doi.org/10.1039/c9na00619b.

• CoCrPt@(TiO2,CoO) granular thin films grown on Ru/NixPd100- x/NiTa (x = 20, 50, 80). Thin Solid Films 693 (2020) 137683. J.L. Tsai, G. Varvaro, C. Pi, J.Y. Chen, Y.T. Wu. https://doi.org/10.1016/j.tsf.2019.137683.

• Synthesis of L10 alloy nanoparticles. Potential and versatility of the pre-ordered Precursor Reduction strategy. J. Alloys Compd. 846 (2020) 156156. G. Varvaro, P. Imperatori, S. Laureti, C. Cannas, A. Ardu, P. Plescia, A. Capobianchi. https://doi.org/10.1016/j.jallcom.2020.156156.

2019

• High Magnetic Coercivity in Nanostructured Mn3O4 Thin Films Obtained by Chemical Vapor Deposition. ACS Appl. Nano Mater. 2 (2019) 1704–1712. L. Bigiani, M. Hassan, D. Peddis, C. Maccato, G. Varvaro, C. Sada, E. Bontempi, S. Martí-Sánchez, J. Arbiol, D. Barreca. https://doi.org/10.1021/acsanm.9b00141.

• High-quality α-Fe nanoparticles synthesized by the electric explosion of wires. J. Magn. Magn. Mater. 484 (2019) 196–200. A. Omelyanchik, G. Varvaro, M. Gorshenkov, A. Medvedev, A. Bagazeev, I. Beketov, V. Rodionova. https://doi.org/10.1016/j.jmmm.2019.03.109.

• Controlling magnetic coupling in bi-magnetic nanocomposites. Nanoscale. 11 (2019) 14256–14265. F. Sayed, G. Muscas, S. Jovanovic, G. Barucca, F. Locardi, G. Varvaro, D. Peddis, R. Mathieu, T. Sarkar. https://doi.org/10.1039/c9nr05364f.

• Giant magneto-optical response in H+ irradiated Zn1−xCoxO thin films. J. Mater. Chem. C. 7 (2019) 78–85. G. Varvaro, A. Di Trolio, A. Polimeni, A. Gabbani, F. Pineider, C. De Julián Fernández, G. Barucca, P. Mengucci, A. Amore Bonapasta, A.M. Testa. https://doi.org/10.1039/c8tc03563f.

• Co/Pd-Based synthetic antiferromagnetic thin films on Au/resist underlayers: Towards biomedical applications. Nanoscale. 11 (2019) 21891–21899. G. Varvaro*, S. Laureti, D. Peddis, M. Hassan, G. Barucca, P. Mengucci, A. Gerardino, E. Giovine, O. Lik, D. Nissen, M. Albrecht. https://doi.org/10.1039/c9nr06866j.

2018

• Red mud as aluminium source for the synthesis of magnetic zeolite. Microporous Mesoporous Mater. 270 (2018) 24–29. C. Belviso, A. Kharchenko, E. Agostinelli, F. Cavalcante, D. Peddis, G. Varvaro, N. Yaacoub, S. Mintova. https://doi.org/10.1016/j.micromeso.2018.04.038.

• L10-FeNi films on Au-Cu-Ni buffer-layer: a high-throughput combinatorial study. Sci. Rep. 8 (2018) 15919. G. Giannopoulos, G. Barucca, A. Kaidatzis, V. Psycharis, R. Salikhov, M. Farle, E. Koutsouflakis, D. Niarchos, A. Mehta, M. Scuderi, G. Nicotra, C. Spinella, S. Laureti, G. Varvaro. https://doi.org/10.1038/s41598-018-34296-9.

• Coherently strained [Fe-Co(C)/Au-Cu]n multilayers: A path to induce magnetic anisotropy in Fe-Co films over large thicknesses. J. Phys. D. Appl. Phys. 51 (2018) 055009. G. Giannopoulos, R. Salikhov, G. Varvaro, V. Psycharis, A.M. Testa, M. Farle, D. Niarchos. https://doi.org/10.1088/1361-6463/aaa41c.

• Magnetic properties of ε iron(III) oxide nanorod arrays functionalized with gold and copper(II) oxide. Appl. Surf. Sci. 427 (2018) 890–896. C. Maccato, G. Carraro, D. Peddis, G. Varvaro, D. Barreca. https://doi.org/10.1016/j.apsusc.2017.09.015.

• Experimental protocols for measuring properties of nanoparticles dispersed in fluids, in: Proc. 2018 IEEE 8th Int. Conf. Nanomater. Appl. 2018. A. Omelyanchik, N. Knezevic, V. Rodionova, M. Salvador, D. Peddis, G. Varvaro, S. Laureti, A. Mrakovic, V. Kusigerski, E. Illes. https://doi.org/10.1109/NAP.2018.8915059.

• Tunable single-phase magnetic behavior in chemically synthesized AFeO3-MFe2O4 (A = Bi or La, M = Co or Ni) nanocomposites. Nanoscale. 10 (2018) 22990–23000. T. Sarkar, G. Muscas, G. Barucca, F. Locardi, G. Varvaro, D. Peddis, R. Mathieu. https://doi.org/10.1039/c8nr06922k.

• Magnetic and microstructural properties of [FePt-Mg(Ti, Ta, Zr, Nb, B)O] granular films. IEEE Trans. Magn. 54 (2018) 1-4. J.L. Tsai, Y.R. Chen, C. Pi, Y.T. Wu, G. Varvaro, C.W. Chang. https://doi.org/10.1109/TMAG.2018.2829157.

• Effect of Pd buffer and interlayer on the magnetic properties of CoCrPt-Oxide granular thin films. IEEE Trans. Magn. 54 (2018) 1-5. J.L. Tsai, C. Pi, Y.S. Chang, Y.T. Wu, Y.R. Chen, C.W. Chang, G. Varvaro. https://doi.org/10.1109/TMAG.2018.2837023. 

2017

• Particle size, spin wave and surface effects on magnetic properties of MgFe2O4 nanoparticles. J. Magn. Magn. Mater. 422 (2017) 7–12. B. Aslibeiki, G. Varvaro, D. Peddis, P. Kameli. https://doi.org/10.1016/J.JMMM.2016.08.057.

• Out-of-plane magnetized cone-shaped magnetic nanoshells. J. Phys. D. Appl. Phys. 50 (2017). D.K. Ball, S. Günther, M. Fritzsche, K. Lenz, G. Varvaro, S. Laureti, D. Makarov, A. Mücklich, S. Facsko, M. Albrecht, J. Fassbender. https://doi.org/10.1088/1361-6463/aa5c26.

• Magnetic anisotropy phase-graded A1/L10-FePt films on amorphous glass substrates. Mater. Des. 123 (2017) 147–153. G. Barucca, T. Speliotis, G. Giannopoulos, D. Niarchos, B. Rutkowski, A. Czyrska-Filemonowicz, E. Agostinelli, S. Laureti, A.M. Testa, G. Varvaro. https://doi.org/10.1016/j.matdes.2017.03.032.

• Investigation of magnetic coupling in FePt/spacer/FePt trilayers, J. Phys. D. Appl. Phys. 50 (2017). A. Kaidatzis, G. Giannopoulos, G. Varvaro, G. Dimitrakopulos, V. Psycharis, J.M. Garcia-Martin, A.M. Testa, G. Barucca, T. Karakostas, P. Komninou, D. Niarchos. https://doi.org/10.1088/1361-6463/aa8c3b.

• Folate targeted coated SPIONs as efficient tool for MRI. Nano Res. 10 (2017) 3212–3227. C. Scialabba, R. Puleio, D. Peddis, G. Varvaro, P. Calandra, G. Cassata, L. Cicero, M. Licciardi, G. Giammona. https://doi.org/10.1007/s12274-017-1540-4.

2016

• [BOOK] Ultra-High-Density Magnetic Recording: Storage Materials and Media Designs, G. Varvaro and F. Casoli Eds., Pan Stanford Publishing (2016). https://doi.org/10.1201/b20044

• [CHAPTER] Magnetic Characterization of Perpendicular Recording Media, in "Ultra-High-Density Magnetic Recording: Storage Materials and Media Designs", G. Varvaro and F. Casoli Eds., Pan Stanford Publishing (2016). G. Varvaro, A.M. Testa, E. Agostinelli, D. Peddis and S. Laureti. https://doi.org/10.1201/b20044

• Ferromagnetism and Conductivity in Hydrogen Irradiated Co-Doped ZnO Thin Films. ACS Appl. Mater. Interfaces. 8 (2016) 12925–12931. A. Di Trolio, P. Alippi, E.M. Bauer, G. Ciatto, M.H. Chu, G. Varvaro, A. Polimeni, M. Capizzi, M. Valentini, F. Bobba, C. Di Giorgio, A. Amore Bonapasta. https://doi.org/10.1021/acsami.6b04203.

• Designing new ferrite/manganite nanocomposites. Nanoscale. 8 (2016) 2081–2089. G. Muscas, P. Anil Kumar, G. Barucca, G. Concas, G. Varvaro, R. Mathieu, D. Peddis. https://doi.org/10.1039/c5nr07572f.

• Studying nanoparticles’ 3D shape by aspect maps: Determination of the morphology of bacterial magnetic nanoparticles. Faraday Discuss. 191 (2016) 177–188. D. Peddis, G. Muscas, R. Mathieu, P.A. Kumar, G. Varvaro, G. Singh, I. Orue, D. Gil-Carton, L. Marcano, A. Muela, M.L. Fdez-Gubieda. https://doi.org/10.1039/c6fd00059b.

• Ledge-type Co/L10-FePt exchange-coupled composites. J. Appl. Phys. 119 (2016) 233904–6. T. Speliotis, G. Giannopoulos, D. Niarchos, W.F. Li, G. Hadjipanayis, G. Barucca, E. Agostinelli, S. Laureti, D. Peddis, A.M. Testa, G. Varvaro. https://doi.org/10.1063/1.4953766. 

• Tunable spin-wave frequency gap in anisotropy-graded FePt films obtained by ion irradiation. Phys. Rev. B. 94 (2016). S. Tacchi, M.G. Pini, A. Rettori, G. Varvaro, A. Di Bona, S. Valeri, F. Albertini, P. Lupo, F. Casoli. https://doi.org/10.1103/PhysRevB.94.024432.

2015

• Combinatorial Development of Fe–Co–Nb Thin Film Magnetic Nanocomposites. ACS Comb. Sci. 17 (2015) 698–703. V. Alexandrakis, W. Wallisch, S. Hamann, G. Varvaro, J. Fidler, A. Ludwig. https://doi.org/10.1021/acscombsci.5b00116.

• Synthesis of magnetic zeolite at low temperature using a waste material mixture: Fly ash and red mud. Microporous Mesoporous Mater. 202 (2015) 208–216. C. Belviso, E. Agostinelli, S. Belviso, F. Cavalcante, S. Pascucci, D. Peddis, G. Varvaro, S. Fiore. https://doi.org/10.1016/j.micromeso.2014.09.059.

• Bioactive, nanostructured Si-substituted hydroxyapatite coatings on titanium prepared by pulsed laser deposition. J. Biomed. Mater. Res. - Part B Appl. Biomater. 103 (2015) 1621–1631. J. V Rau, I. Cacciotti, S. Laureti, M. Fosca, G. Varvaro, A. Latini. https://doi.org/10.1002/jbm.b.33344.

• Shape-control by microwave-assisted hydrothermal method for the synthesis of magnetite nanoparticles using organic additives. J. Nanoparticle Res. 17 (2015) 408. A. Rizzuti, M. Dassisti, P. Mastrorilli, M.C. Sportelli, N. Cioffi, R.A. Picca, E. Agostinelli, G. Varvaro, R. Caliandro. https://doi.org/10.1007/s11051-015-3213-0.

• Microstructure and magnetic properties of (001) textured L10 FePt films on amorphous glass substrate. Appl. Surf. Sci. 337 (2015) 118–124. T. Speliotis, G. Varvaro, A.M. Testa, G. Giannopoulos, E. Agostinelli, W. Li, G. Hadjipanayis, D. Niarchos. https://doi.org/10.1016/j.apsusc.2015.02.073.

• Highly Textured FeCo Thin Films Deposited by Low Temperature Pulsed Laser Deposition. ACS Appl. Mater. Interfaces. 7 (2015) 22341–22347. G. Varvaro, D. Peddis, G. Barucca, P. Mengucci, V. Rodionova, K. Chichay, A.M. Testa, E. Agostinelli, S. Laureti. https://doi.org/10.1021/acsami.5b06030.

2014

• [CHAPTER] Magnetic Interactions: a tool to modify the magnetic properties of materials based on nanoparticles, in "Nanomagnetism: Fundamentals and Applications", C. Binns Ed., Elsivier (2014). D. Peddis, P. E. Jonsson, S. Laureti, and G. Varvaro. https://doi.org/10.1016/B978-0-08-098353-0.00004-X

• Magnetic properties of granular CoCrPt:SiO2 thin films deposited on GaSb nanocones. Nanotechnology. 25 (2014). D.K. Ball, K. Lenz, M. Fritzsche, G. Varvaro, S. Günther, P. Krone, D. Makarov, A. Mücklich, S. Facsko, J. Fassbender, M. Albrecht. https://doi.org/10.1088/0957-4484/25/8/085703.

• Magnetocaloric effect in Ni47Mn40Sn13 alloy prepared by mechanical alloying. J. Alloys Compd. 598 (2014) 6–10.  a. Ghotbi Varzaneh, P. Kameli, F. Karimzadeh, B. Aslibeiki, G. Varvaro, H. Salamati. https://doi.org/10.1016/j.jallcom.2014.01.249.

• EXAFS investigation of the role of Cu on the chemical order and lattice distortion in L10 Fe-Pt-Cu thin films. J. Appl. Crystallogr. 47 (2014) 1722–1728. S. Laureti, C. Brombacher, D. Makarov, M. Albrecht, D. Peddis, G. Varvaro, F. D’Acapito. https://doi.org/10.1107/S1600576714019268.

• L10 FePt-based thin films for future perpendicular magnetic recording media. J. Magn. Magn. Mater. 368 (2014) 415–420. G. Varvaro, S. Laureti, D. Fiorani. https://doi.org/10.1016/j.jmmm.2014.04.058.

2013

• Defect-induced magnetism in cobalt-doped ZnO epilayers. AIP Conf. Proc., 2013: pp. 332–336. G. Ciatto, A.D. Trolio, E. Fonda, P. Alippi, A. Polimeni, M. Capizzi, G. Varvaro, A.A. Bonapasta. https://doi.org/10.1063/1.4865664.

• Interface exchange coupling in a CoPt/NiO bilayer. Thin Solid Films. 543 (2013) 162–166. S. Laureti, L. Del Bianco, B. Detlefs, E. Agostinelli, V. Foglietti, D. Peddis, A.M. Testa, G. Varvaro, D. Fiorani. https://doi.org/10.1016/j.tsf.2012.12.115.

• Study of microstructure and magnetization reversal mechanism in granular CoCrPt:SiO2 films of variable thickness. Mater. Chem. Phys. 141 (2013) 790–796. G. Varvaro, A.M. Testa, E. Agostinelli, D. Fiorani, S. Laureti, F. Springer, C. Brombacher, M. Albrecht, L. Del Bianco, G. Barucca, P. Mengucci, D. Rinaldi. https://doi.org/10.1016/j.matchemphys.2013.06.005.

2012

• Bifunctional FePt@MWCNTs/Ru nanoarchitectures: Synthesis and characterization. Chem. Mater. 24 (2012) 3393–3400. B. Astinchap, R. Moradian, A. Ardu, C. Cannas, G. Varvaro, A. Capobianchi. https://doi.org/10.1021/cm3015447.

• Highly controlled dip-coating deposition of fct FePt nanoparticles from layered salt precursor into nanostructured thin films: An easy way to tune magnetic and optical properties. Chem. Mater. 24 (2012) 1072–1079. M. Faustini, A. Capobianchi, G. Varvaro, D. Grosso. https://doi.org/10.1021/cm2033492.

• Exchange bias and magnetothermal properties in Fe@Mn nanocomposites. J. Magn. Magn. Mater. 324 (2012) 3503–3507. S. Laureti, D. Peddis, L. Del Bianco, A.M. Testa, G. Varvaro, E. Agostinelli, C. Binns, S. Baker, M. Qureshi, D. Fiorani. https://doi.org/10.1016/j.jmmm.2012.02.076.

• Magnetization reversal mechanism in perpendicular exchange-coupled Fe/L10–FePt bilayers. New J. Phys. 14 (2012) 073008 (14pp). G. Varvaro, F. Albertini, E. Agostinelli, F. Casoli, D. Fiorani, S. Laureti, P. Lupo, P. Ranzieri, B. Astinchap,  a M. Testa. https://doi.org/10.1088/1367-2630/14/7/073008.

2011

• Hard/graded exchange spring composite media based on FePt. J. Appl. Phys. 109 (2011) 1–4. V. Alexandrakis, T. Speliotis, E. Manios, D. Niarchos, J. Fidler, J. Lee, G. Varvaro. https://doi.org/10.1063/1.3556773.

2010

• Magnetic interactions in silica coated nanoporous assemblies of CoFe2O4 nanoparticles with cubic magnetic anisotropy. Nanotechnology. 21 (2010). S. Laureti, G. Varvaro, A.M. Testa, D. Fiorani, E. Agostinelli, G. Piccaluga, A. Musinu, A. Ardu, D. Peddis. https://doi.org/10.1088/0957-4484/21/31/315701.

• Properties of pulsed laser deposited fluorinated hydroxyapatite films on titanium. Mater. Res. Bull. 45 (2010) 1304–1310. J. V Rau, V. V Smirnov, S. Laureti, A. Generosi, G. Varvaro, M. Fosca, D. Ferro, S.N. Cesaro, V.R. Albertini, S.M. Barinov. https://doi.org/10.1016/j.materresbull.2010.04.028.

2009

• Exchange Bias in fcc-CoPt/CoO/Si films as a function of annealing treatment. Superlattices Microstruct. 46 (2009) 90–94. S. Laureti, E. Agostinelli, D. Fiorani, A. Generosi, B. Paci, V. Rossi Albertini, A.M. Testa, G. Varvaro. https://doi.org/10.1016/j.spmi.2009.01.007.

• Ordered arrays of FePt nanoparticles on unoxidized silicon surface by wet chemistry. Superlattices Microstruct. 46 (2009) 95–100. A. Mari, E. Agostinelli, D. Fiorani, A. Flamini, S. Laureti, D. Peddis, A.M. Testa, G. Varvaro, M. V Mansilla, A. Mezzi, S. Kaciulis. https://doi.org/10.1016/j.spmi.2009.02.001.

• Exchange Bias in CoFe2O4/NiO nanocomposites. Superlattices Microstruct. 46 (2009) 125–129. D. Peddis, S. Laureti, M. V Mansilla, E. Agostinelli, G. Varvaro, C. Cannas, D. Fiorani. https://doi.org/10.1016/j.spmi.2008.10.042.

2008

• Effect of oxygen partial pressure on PLD cobalt oxide films. Appl. Surf. Sci. 254 (2008) 5111–5115. S. Laureti, E. Agostinelli, G. Scavia, G. Varvaro, V.R. Albertini, A. Generosi, B. Paci, A. Mezzi, S. Kaciulis. https://doi.org/10.1016/j.apsusc.2008.02.055.

• Magnetic anisotropy and intergrain interactions in L10 CoPt(1 1 1)/Pt(1 1 1)/MgO(1 0 0) PLD granular films with tilted easy axes. J. Phys. D. Appl. Phys. 41 (2008). G. Varvaro, E. Agostinelli, S. Laureti, A.M. Testa, J.M. García-Martin, F. Briones, D. Fiorani. https://doi.org/10.1088/0022-3727/41/13/134017.

• Study of magnetic easy axis 3-D arrangement in L10 CoPt(111)/Pt(111)/MgO(100) tilted system for perpendicular recording. IEEE Trans. Magn. 44 (2008) 643–647. G. Varvaro, E. Agostinelli, S. Laureti, A.M. Testa, A. Generosi, B. Paci, V.R. Albertini. https://doi.org/10.1109/TMAG.2008.918205.

2007

• Study of structural microstructural and magnetic properties of very thin Co50Pt50 films deposited by PLD. Mater. Sci. Eng. C. 27 (2007) 1466–1469. E. Agostinelli, S. Laureti, G. Varvaro, A. Generosi, B. Paci, V. Rossi-Albertini, G. Scavia, A.M. Testa. https://doi.org/10.1016/j.msec.2006.07.015.

2006

• Evolution of the Pt layer deposited on MgO(001) by pulsed laser deposition as a function of the deposition parameters: A scanning tunneling microscopy and energy dispersive X-ray diffractometry/reflectometry study. J. Phys. Chem. B. 110 (2006) 5529–5536. G. Scavia, E. Agostinelli, S. Laureti, G. Varvaro, B. Paci, A. Generosi, V.R. Albertini, S. Kaciulis, A. Mezzi. https://doi.org/10.1021/jp0554644.

2005

• Investigation of magnetization reversal processes in Co-Pt/Pt thin films. J. Magn. Magn. Mater. 290-291 PA (2005) 467–470. A.M. Testa, D. Fiorani, L. Del Bianco, E. Agostinelli, P. Imperatori, G. Scavia, G. Varvaro, F. D’Orazio, F. Lucari. https://doi.org/10.1016/j.jmmm.2004.11.237.

2004

• Structural and magnetic properties of pulsed laser deposited CoPt3 films. J. Magn. Magn. Mater. 272–276 (2004) e907–e908. E. Agostinelli, G. Varvaro, L. Del Bianco, D. Fiorani, P. Imperatori, G. Scavia, A.M. Testa. https://doi.org/10.1016/j.jmmm.2003.12.1337.

• Structural, morphological and magnetic study of CoPt/Cr/MgO films by energy dispersive X-ray diffractometry and reflectometry measurements. J. Magn. Magn. Mater. 272–276 (2004) e873–e874. B. Paci, A. Generosi, V.R. Albertini, E. Agostinelli, G. Varvaro. https://doi.org/10.1016/j.jmmm.2003.12.1366.

• Structural and Morphological Characterization by Energy Dispersive X-ray Diffractometry and Reflectometry Measurements of Cr/Pt Bilayer Films. Chem. Mater. 16 (2004) 292–298. B. Paci, A. Generosi, V.R. Albertini, E. Agostinelli, G. Varvaro, D. Fiorani. https://doi.org/10.1021/cm031100h.

2010 - To Date

2023 – 2025

IT MUR PRIN 2022 PNRR 

Hybrid ferrite nanocomposites for novel rare-earth free permanent magnets  (HyPerMag)

Coordinator: C. De Julián Fernández (CNR - IMEM) | Total/Unit Budget: ~ 300 k€ / ~55 k€

Role: Team Member

2023 – 2025

IT – Fondazione ICO FALCK / Fondazione Politecnico di Milano  

"Circular economy of rare-earth permanent magnets"  (ReCREATE)

Coordinator: G. Dotelli (Pol. Milano) | Total/Unit Budget: ~265 k€ / ~150 k€

Role: CNR-ISM Unit Principal Investigator

2022 – 2025

IT – PNRR Innovation Ecosystems

"Roma Technopole"

nM2-Lab Budget: ~140 k€

Role: CNR Unit Leader for FP3 "Digital transition in the decarbonization process and in waste recycling processes" and member of SPOKE 2 “Technology transfer, new entrepreneurship, business incubation and acceleration”

2022 – 2025 

IT – PRIN MUR 2020

“Understanding and controlling magnetic inertia: towards terahertz spin-based technologies” (MAGNUT) 

Coordinator: S. Bonetti (Un. Ca’ Foscari) | Total/Unit Budget: ~505 k€ / ~155 k€

Role: CNR-ISM Unit Principal Investigator

2022 – 2024 

EU – ERAMIN 3

“Recycling End of Life permanent magnets by innovative sintering and 3D printing” (RENDERING 3D)

Coordinator: F. Canepa (Un. Genova) | Total/Unit Budget: ~810 k€ / ~210 k€

Role: CNR-ISM Unit Principal Investigator

2022 – 2024 

IT – PON "Ricerca e Innovazione" 2014-2020

1 PhD Scholarship on green topic

Budget: ~70 k€

Role: PhD Supervisor

2020 – 2023

IT – MISE PON I&C 2014-2020

Autonomous and flexible manufacturing and augmented reality techniques for processes automation (ARPA)

Coordinator: P. Larizza (MASMEC) | Total/Unit Budget: ~5000 k€ / ~60 k€

Role: Work-package co-leader “Studio di nano-compositi innovativi per la realizzazione di componenti mediante tecnica di stampa 3D”

2019 – 2023

IT – POR FESR Lazio 2014-2020

E-RIHS.it LAZIO

Coordinator: C. Milani (CNR), nM2-Lab/CNR Unit PI: G. Varvaro 

Total/Unit Budget: ~3000 k€ / ~750 k€

2019 – 2021

EU – EIT KIC Raw Materials (Educational Project)

Historical Mining – tracing and learning from ancient materials and mining technologies (MINEHERITAGE). 

Coordinator: J. P. Veiga (Un. NOVA de Lisboa, Portugal) |Total/Unit Budget: ~600 k€ / ~90 k€

Role: Team Member

2018 – 2019

IT – MIUR (Educational Project)

Dalla ricerca alla Scuola... e ritorno - Metodo, linguaggio e approccio scientifico per una scuola di qualità

Coordinator: A. Torregiani (CNR-ISOF, Italy) |Total/Unit Budget: ~100 k€ / ~20 k€

Role: Team Member

2018 – 2019

IT – Collaboration Agreement with Un. Firenze

Nanoparticelle magnetiche per applicazioni catalitiche

Coordinators: D. Peddis (CNR-ISM, Italy) – A. Caneschi (Un. Firenze, Italy) |Total/Unit Budget: ~40 k€ / ~20 k€

Role: Team Member

2018 – 2019

Bilateral Project CNR (Italy) – Romanian Academy of Science (Romania)

Advanced ferrofluid for theranostic application

Coordinators: D. Peddis (CNR-ISM, Italy) – L. Vekas (Romanian Academy, Romania) | Total/Unit Budget: 30 k€ / 15 k€

Role: Team Member

2018 – 2019

EU – EIT KIC Raw Materials

Magnetometry Network” (Mag-Net-NoI)

Coordinator: T. Hauet (Université de Lorraine, France) | Unit Budget: ~15 k€

Website: http://www.magnetometry.eu/

Role: Team Member

2017 – 2021

EU – H2020 FET Proactive

Magnetic nanoparticle based liquid energy materials for thermoelectric device Applications (MAGENTA)

Coordinator: S. Nakamae (CEA, France) | Total/Unit Budget: ~5000 / ~725 k€

Role: Work-package leader (“Magnetic nanoparticles based liquid energy materials for thermoelectric device applications”) and member of the Steering Committee

2015

IT – CNR Short Term Mobility Program

Fabrication and magnetic characterization of arrays of perpendicular spin valves in the sub-50 nm regime

Role: Principal Investigator

2013 – 2014

Bilateral Project CNR (Italy) – CONICET (Argentina)

Synthesis of bimagnetic core-shell nanoparticles and study of the exchange coupling between ferri and antiferrimagnetic and perovskitic phases to tune magnetic anisotropy and coercivity

Coordinators: E. Agostinelli (CNR-ISM, Italy) – R. Zysler (CONICET, Argentina) | Unit Budget: 8 k€

Role: Team Member

2013 – 2016

IT – Progetti Premiali DM 949/RIC 2012

Materiali e dispositivi magnetici e superconduttivi per sensoristica e ICT

Coordinator: C. Carbone (CNR) | Total/Unit Budget: ~290 k€ / ~30 k€

Role: Team Member

2012 – 2015

EU – FP7-PEOPLE-2011-IRSES – Marie Curie Action

Magnetic nanoparticles and thin films for spintronic applications and high performance permanent magnets (NANOMAG)

Coordinator: : G. Papavasiliou (NCSR-Demokritos, Greece) | Total/Unit Budget: ~500 / ~40 k€

Role: Team Member

2010 – 2012

IT – MIUR PRIN

Stabilità termica di nanostrutture magnetiche planari (2D) exchange-spring con accoppiamento di scambio perpendicolare e laterale

Coordinator: M. Solzi (Un. Parma) | Total/Unit Budget: ~130 k€ / ~70 k€

Role: Team Member

2009 – 2010

MAE Progetto di Grande Rilevanza CNR (Italy) – CONICET (Argentina)

Nanostructured magnetic materials for high density magnetic recording

Coordinators: D. Fiorani (CNR-ISM, Italy) – R. Zysler (CONICET, Argentina) | Unit Budget: ~50 k€

Role: Team Member

2008 – 2011

EU – FP7 ICT

Terabit magnetic storage technologies (TERAMAGSTOR)

Coordinator: D. Niarchos (NCSR-Demokritos, Greece) | Total/Unit Budget: ~3500 / ~435 k€

Role: Team Member

MOST RELEVANT INTERNATIONAL PROJECTS IN THE PERIOD 2000 – 2010

2008 – 2011

EU – FP6 STREP

Self-Organised Complex-Spin Magnetic Nanostructures" (NANOSPIN)

Coordinator: C. Binns (Leicester Un., UK) | Total/Unit Budget: ~1800 / ~265 k€

Role: Team Member

2002 – 2005

EU – FP5 GROWTH

Self-assembled nanoparticles and Nanostructured array for high density magneto-recording (HIDEMAR)

Coordinator: D. Fiorani & E. Agostinelli (CNR) | Total/Unit Budget: ~1800 / ~285 k€

Winner of a Renè Descartes Prize for “Excellence in Collaborative Research in Europe” (2005) sector Engineering.

Role: Team Member