Publications

Magnon Spin Current Modulation through Site-Specific Doping in a Compensated Iron Garnet

Anna Merin Francis, P. B. S. Murthykrishnan, Ratnamay Kolay, Ramesh Nath, Sunil Nair

arXiv:2508.03378 [cond-mat.str-el] (2025)

Colossal Intrinsic Phase-Shift in Broad sub-Terahertz Band Enabled by Magnetoelastic Coupling for 6G Communication Technology

Brijesh Singh Mehra, Sanjeev Kumar, Gaurav Dubey, Karan Datt Sharma, Deepali Sharma, Devu S. S. Surendrakurup Sreeja, Ravi Shankar Singh, Sunil Nair, and Dhanvir Singh Rana

ACS Appl. Mater. Interfaces 2025, 17, 43181−43188

Experimental evidence of paramagnons within the glass phase of Ca(Fe1/2Nb1/2)O3

Arun Kumar, Sunil Nair

Journal of Alloys and Compounds 1035 (2025) 181488

Giant terahertz magnetoelastic phase-shift modulator

Ayyappan Shyam, Brijesh Singh Mehra, Sanjeev Kumar, Charu Garg, Deepali Sharma, Gulloo Lal Prajapati, Gaurav Dubey, Ravi Shankar Singh, Sunil Nair and Dhanvir Singh Rana

Appl. Phys. Rev. 12, 021420 (2025)

Understanding the evolution of the magnetic ground state in Ba4NaRu3O12

Shruti Chakravarty, Pascal Manuel, Antonio Cervellino, Sunil Nair

arXiv:2504.11863 [cond-mat.str-el] (2025)

Observation of an interfacial magnon-electron drag in a pyrochlore ferromagnet–heavy metal heterostructure

Avirup De, Dharmalingam Prabhakaran, Sunil Nair 

Phys. Rev. B 111, 054435 (2025)

High-temperature magneto-structural coupling in the Sr(Fe1/2Nb1/2)O3 system

Arun Kumar, S.D. Kaushik, Sunil Nair

Journal of Alloys and Compounds 1010 177469 (2025)

Freezing of short-range ordered antiferromagnetic clusters in the CrFeTi2O7 system

Arun Kumar, Soumendra Nath Panja, Lukas Keller, Sunil Nair

Journal of Physics: Condensed Matter 36 505805(2024)

Exploring low-temperature dynamics in triple perovskite ruthenates using nonlinear dielectric susceptibility measurements

Shruti Chakravarty, Sunil Nair

J. Appl. Phys. 135, 104103 (2024)

Resonant Ultrasound Spectroscopy of single crystalline KH2PO4

Vikram Singh, M. Bicky Singh, Sunil Nair

Solid State Communications 380(9), 115424 (2024)

Successive magnetic phase transitions with magnetoelastic and magnetodielectric coupling in the ordered triple perovskite Sr3CaRu2O9 

Arun Kumar, Pascal Manuel, Sunil Nair

Phys. Rev. Materials 8, 024405 (2024)

Quasi-static remanence as a generic-feature of spin-canting in Dzyaloshinskii-Moriya Interaction driven canted-antiferromagnets

Namrata Pattanayak, Arun Kumar, A.K. Nigam, Vladimir Pomjakushin, Sunil Nair, Ashna Bajpai

arXiv:2310.19009 (2023)

Crystal orientation dependent spin pumping in Bi0.1Y2.9Fe5O12/Pt interface

Ganesh Gurjar, Vinay Sharma, Avirup De, Sunil Nair, S. Patnaik, Bijoy K. Kuanr

J. Phys. D: Appl. Phys. 56, 385302 (2023)

Disorder-driven cluster glass state in a geometrically frustrated hexagonal perovskite

Shruti Chakravarty, Øystein Slagtern Fjellvåg, Arpan Bhattacharyya, Lukas Keller, Sunil Nair

Physical Review B 107, 134414 (2023)

Anomalous dielectric response in the triple perovskite ruthenate Ba3BiRu2O9

Jitender Kumar, Kaustav Dey, Soumendra Nath Panja, and Sunil Nair

Journal of Physics: Condensed Matter 34, 465401 (2022)

Evidence for cluster glass ground state in the potential giant dielectric constant material Ba(Fe1/2Sn1/2)O3-δ

Arun Kumar, Girish Sahu, Sunil Nair

Journal of Alloys and Compounds 920, 165914 (2022)

Transformation of magnetic ordering in MnCo1-xNixGe (x= 0–0.6) alloys, its investigations on structural, transport, magnetic, and magnetocaloric properties

U Devarajan, Sunil Nair, C Venkateswaran

Materials Today: Proceedings (2022)

Frustration, strain and phase co-existence in the mixed valent hexagonal iridate Ba3NaIr2O9

Charu Garg, Antonio Cervellino, Sunil Nair

Journal of Physics: Condensed Matter 34, 285602 (2022)

Few-Layer SrRu2O6Nanosheets as Non-Van der Waals Honeycomb Antiferromagnets: Implications for Two-Dimensional Spintronics

Suvidyakumar Homkar, Bharat Chand, Shatruhan Singh Rajput, Sandeep Gorantla, Tilak Das, Rohit Babar, Shivprasad Patil, Rüdiger Klingeler, Sunil Nair, Mukul Kabir, and Ashna Bajpai

ACS Appl. Nano Mater. 4, 9313 (2021)

Phase coexistence and negative thermal expansion in the triple perovskite iridate Ba3CoIr2O9

Charu Garg, Antonio Cervellino, Sunil Nair 

Physical Review Materials 5, 044405 (2021)

Anisotropic thermoelectric transport in textured Sb1.5Bi0.5Te3 nanomaterial synthesized by facile bottom-up physical process

R.S.C.Bose, V.Sheoran, P.S.H.Vaishnavi, D.S.Prem, S.Chakravarty, R.Raman, D.A.Babu, PratibhaSaharan, S.Nair, J.Rama

Journal of Alloys and Compounds 859, 157828 (2021)

Evolution of the structural, magnetic and electronic properties of the triple perovskite Ba3CoIr2O9

Charu Garg, Deepak Roy, Martin Lonsky, Pascal Manuel, Antonio Cervellino, Jens Müller, Mukul Kabir, Sunil Nair

Physical Review B 103, 014437 (2021)

Anisotropy in the magnetization and magnetoelectric response of single crystalline Mn4Ta2O9

Soumendra Nath Panja, Pascal Manuel, Sunil Nair

Physical Review B 103, 014422 (2021)

Temperature dependence of the anomalous Nernst effect in Ni2MnGa shape memory alloy 

Avirup De, Anupam K. Singh, Sanjay Singh, Sunil Nair

Physical Review B (Letter) 103, L020404 (2021)

Growth, properties, and applications of pulsed laser deposited nanolaminate Ti3AlC2 thin films

Abhijit Biswas, Arundhati Sengupta, Umashankar Rajput, Sachin Kumar Singh, Vivek Antad, Sk Mujaffar Hossain, Swati Parmar, Dibyata Rout, Aparna Deshpande, Sunil Nair, and Satishchandra Ogale  

Physical Review Applied 13, 044075 (2020) 

Temperature Dependence of the Spin Seebeck Effect in a Mixed Valent Manganite

Avirup De, Arup Ghosh, Rajesh Mandal, Satishchandra Ogale, Sunil Nair

Physical Review Letters 124, 017203 (2020)

Investigations of the heterometallic Ludwigite Ni2AlBO­5

Jitender Kumar, Deepak John Mukkattukavil, Arpan Bhattacharyya, Sunil Nair

Journal of Physics: Condensed Matter 32, 065601 (2019)

Investigations on Cu induced couple-decoupled magneto-structural transition in MnCoGe alloys

U Devarajan and Sunil Nair

Mater. Res. Express 6, 106117 (2019)

Scaling of magnetotransport in the Ba(Fe1-xCox)2As2 series

Rohit Kumar, Surjeet Singh, Sunil Nair

Journal of Physics: Condensed Matter 31 115601 (2019)

 Measurement independent magnetocaloric effect in Mn-rich Mn-Fe-Ni-Sn(Sb/In) Heusler alloys

 Arup Ghosh, Rajeev Rawat, Arpan Bhattacharyya, Guruprasad Mandal, A. K. Nigam, Sunil Nair 

 Journal of Magnetism and Magnetic Materials 476 pp 92-99 (2019)

Large anomalous Nernst effect across the magneto-structural transition in bulk Ni-Co-Mn-Sn full Heusler alloy

Arup Ghosh, Avirup De and Sunil Nair

Applied Physics Letters 113, 262405 (2018) 

Magnetotransport studies of optimally doped Sr(Fe1−xCox)2As2 

Rohit Kumar, Luminita Harnagea, Archana Lakhani, Sunil Nair 

Journal of Physics: Condensed Matter 30, 50561 (2018)

Absence of a multiglass state in some transition metal doped quantum paraelectrics

Charu Garg, Jitender Kumar, Sunil Nair

Physical Review Materials 2, 094409 (2018)

Highly Stable COF‐Supported Co/Co(OH)2 Nanoparticles Heterogeneous Catalyst for Reduction of Nitrile/Nitro Compounds under Mild Conditions

Dinesh Mullangi, Debanjan Chakraborty, Anu Pradeep, Vijay Koshti, Chathakudath P. Vinod, Soumendra Nath Panja, Sunil Nair and Ramanathan Vaidhyanathan

Small, 1801233 (2018) 

     Magnetic and dielectric investigations of γ - Fe2WO6

Soumendra Nath Panja, Jitender Kumar, Luminita Harnagea, A. K. Nigam, Sunil Nair

Journal of Magnetism and Magnetic Materials 466, 354 (2018) 

Coupled magnetic and ferroelectric states in the distorted honeycomb system Fe4Ta2O9

Soumendra Nath Panja, Luminita Harnagea, Jitender Kumar, P.K.Mukharjee, R.Nath, A.K.Nigam, Sunil Nair

Physical Review B 98, 024410 (2018) 

Effects of the thermal and magnetic paths on first order martensite transition of disordered Ni45Mn44Sn9In2 Heusler alloy exhibiting a giant magnetocaloric effect and magnetoresistance near room temperature

T Chabri, Arup Ghosh, Sunil Nair, A M Awasthi, A Venimadhav and T K Nath 

 Journal of Physics D: Applied Physics 51 195001 (2018)

Magnetic and magnetocaloric properties of Gd-doped Mn-Ni-Sn alloys

Arup Ghosh and Sunil Nair

AIP Conference Proceedings 1942, 130032 (2018) 

     Improper multiferroicity and colossal dielectric constants in Bi2CuO4

Jitender Kumar, Soumendra Nath Panja, Amit Kumar Naiya, Sunil Nair

arXiv:1703.01155v1 (2017)

     A reentrant superspin glass state and magnetization steps in the oxyborate Co2AlBO5

Jitender Kumar, Soumendra Nath Panja, Deepak John, Arpan Bhattacharyya, A. K. Nigam, Sunil Nair

Physical Review B 95, 144409 (2017)

     Identification of a Griffiths singularity in a geometrically frustrated antiferromagnet

Jitender Kumar, Soumendra Nath Panja, Shanu Dengre, Sunil Nair

Physical Review B 95, 054401 (2017)

     Synthesis and physical properties of spin-1 honeycomb lattice Pb6Ni9(TeO6)5

P.R. Baral, N. Ahmed, J. Kumar, Sunil Nair and R. Nath

Journal of Alloys and Compunds 711, 568 (2017)

     Possible Room-Temperature Ferromagnetism in Self-Assembled Ensembles of Paramagnetic and Diamagnetic Molecular Semiconductors

Barun Dhara, Kartick Tarafder, Plawan K. Jha, Soumendra N. Panja, Sunil Nair, Peter M. Oppeneer, and Nirmalya Ballav 

Journal of Physical Chemistry Letters 7, 4988 (2016)

     Increase in Electrical Conductivity of MOF to Billion-Fold upon Filling the Nanochannels with Conducting Polymer

Barun Dhara, Sanjog S. Nagarkar, Jitender Kumar, Vikash Kumar, Plawan Kumar Jha, Sujit K. Ghosh, Sunil Nair, and Nirmalya Ballav

Journal of Physical Chemistry Letters 7, 2945 (2016)

    Relieving Geometrical frustration through doping in the Dy1−xCaxBaCo4O7 Swedenborgites

Soumendra Nath Panja, Jitender Kumar, Shanu Dengre, Sunil Nair

Journal of Physics: Condensed Matter 28, 486001  (2016)

    The roles of chirality and polarity in novel multiferroics:  MnSb2O6 and Cu3Nb2O8

R. Johnson, L. Chapon, K. Cao, P. Manuel, A. Bombardi, Sunil Nair, S.-W. Cheong and P. Radaelli

Acta Crystallographica Section A: Foundations and Advances 70, C386  (2014)

     Hall effect in heavy-fermion metals

Sunil Nair, S. Wirth, S. Friedemann, F. Steglich, Q. Si, A.J. Schofield

Advances in Physics 61, 583 (2012)

     Cu3Nb2O8: A Multiferroic with Chiral Coupling to the Crystal Structure

R. D. Johnson, Sunil Nair, L. C. Chapon, A. Bombardi, C. Vecchini, D. Prabhakaran, A. T. Boothroyd, and P. G. Radaelli

Physical Review Letters 107, 137205 (2011)

     Magnetism and superconductivity driven by identical 4f states in a heavy-fermion metal

Sunil Nair, O. Stockert, U. Witte, M. Nicklas, R. Schedler, K. Kiefer, J. D. Thompson, A. D. Bianchi, Z. Fisk, S. Wirth, F. Steglich

Proceedings of the National Academy of Sciences of the USA 107, 9537 (2010)

     Precursor state to superconductivity in CeIrIn5: Unusual scaling of magnetotransport

Sunil Nair, M. Nicklas, F. Steglich, J. L. Sarrao, J. D. Thompson, A. J. Schofield, and S. Wirth

Physical Review B 79, 094501 (2009)

     Magnetotransport in the CeIrIn5 System: The Influence of Antiferromagnetic Fluctuations

Sunil Nair, M. Nicklas, F. Steglich, J. L. Sarrao, J. D. Thompson, A. J. Schofield, and S. Wirth

Journal of Superconductivity and Novel Magnetism 22, 201  (2009)

     Analysis of the normal state magnetotransport in CeIrIn5

Sunil Nair, M. Nicklas, J. L. Sarrao, J. D. Thompson, F. Steglich and S. Wirth

Journal of Superconductivity and Novel Magnetism 22, 195 (2009)

    Hall effect and magnetoresistance in the heavy fermion superconductor CeCo(In(1-x)Cdx)5

Sunil Nair, S. Wirth, M. Nicklas, A. Bianchi, Z. Fisk and F. Steglich

Journal of Physics: Conference Series 150, 042133 (2009)

     Precursor State to Unconventional Superconductivity in CeIrIn5

Sunil Nair, S. Wirth, M. Nicklas, J. L. Sarrao, J. D. Thompson, Z. Fisk, and F. Steglich

Physical Review Letters 100, 137003 (2008)

     A re-entrant canted antiferromagnetic state in the Mn site substituted manganite- La0.46Sr0.54Mn0.98Cr0.02O3

Sunil Nair and A. K. Nigam

Europhysics Letters 84, 37008 (2008)

     Hall effect measurements in the heavy fermion system CeIrIn5

Sunil Nair, S. Wirth, M. Nicklas, A. Gladun, F. Steglich, J. L. Sarrao and J. D. Thompson

Physica B 403, 837 (2008)

     Critical exponents and the correlation length in the charge exchange manganite spin glass Eu0.5Ba0.5MnO3 

Sunil Nair and A. K. Nigam

Physical Review B 75, 214415 (2007)

     Crossover from Landau Fermi liquid to non-Fermi liquid behavior: Indications from Hall measurements on CeCoIn5

C.Capan, S.Singh, S.Nair, M.Nicklas, H.Lee, J.F.DiTusa, Z.Fisk, S.Wirth, F.Steglich

Physica C Superconductivity 460, 678 (2007)

     Phase separation, memory effects, and magnetization steps in single crystalline La1.1Sr1.9Mn2O7

Sunil Nair, A. K. Nigam, A. V. Narlikar, D. Prabhakaran, and A. Boothroyd

Physical Review B 74, 132407 (2006)

     Probing Magnetic Phases in Different Systems Using Linear and Non Linear Susceptibility

A. Banerjee, A. Bajpai and Sunil Nair

Page 43-68, Frontiers in Magnetic Materials,

Edited by A.V. Narlikar, Springer Verlag (2005)

    Finite size effects and the effect of disorder on the electronic phase separation in Pr0.5Ca0.5Mn1-xAlxO3

Sunil Nair and A. Banerjee

arXiv:cond-mat/0510432 (2005)

     Formation of finite antiferromagnetic clusters and the effect of electronic phase separation in Pr0.5Ca0.5Mn0.975Al0.025O3

Sunil Nair and A. Banerjee

Physical Review Letters 93, 117204 (2004)

     Dilution of 2D antiferromagnetism by Mn site substitution in La1Sr2Mn2-xAlxO7

Sunil Nair and A. Banerjee

Physical Review B 70, 104428 (2004)

     Effect of Al substitution on the charge ordered Pr0.5Ca0.5MnO3: Structure, Magnetism and Transport

Sunil Nair and A Banerjee 

Journal of Physics: Condensed Matter 16, 8335 (2004) 

     Probing a ferromagnetic critical regime using nonlinear susceptibility 

Sunil Nair and A. Banerjee

Physical Review B 68, 094408 (2003) 

     Observation of 3D Heisenberg-like ferromagnetism in single crystal La0.875Sr0.125MnO3

Sunil Nair, A. Banerjee, A. V. Narlikar, D. Prabhakaran, A. T. Boothroyd

Physical Review B 68, 132404 (2003)