Publication list

2022

1. Breakdown of atomic spin-orbit coupling picture in an apparently isolated pseudo-one-dimensional iridate: Sr3NaIrO6, Abhisek Bandyopadhyay, A. Chakraborty, S. Bhowal, Vinod Kumar, M. M. Sala, A. Efimenko, F. Bert, P. K. Biswas, C. Meneghini, N. Büttgen, I. Dasgupta, T. Saha Dasgupta, A. V. Mahajan, and Sugata Ray, Phys. Rev. B 105, 104431 (2022).

2. Magnetic transition in the Jeff= 1/2 Kagomé system Sm3Sb3Zn2O14, Vinod Kumar, S Kundu, M Baenitz, A.V. Mahajan, Journal of Magnetism and Magnetic Materials 552, 169145 (2022).

3. Raman fingerprints of fractionalized Majorana excitations in the honeycomb iridate Ag3LiIr2O6, Srishti Pal, Vinod Kumar, Debendra Prasad Panda, A Sundaresan, Avinash V Mahajan, DVS Muthu, AK Sood, Phys. Rev. B 105, 235125 (2022).

2021

1. Unusual spin dynamics in the low-temperature magnetically ordered state of Ag3LiIr2O6, Atasi Chakraborty, Vinod Kumar, Sanjay Bachhar, N. Büttgen, K. Yokoyama, P. K. Biswas, V. Siruguri, Sumiran Pujari, I. Dasgupta, and A. V. Mahajan, Phys. Rev. B 104, 115106 (2021).

2. Magnetic properties of the S=5/2 anisotropic triangular chain compound Bi3FeMo2O12, K Boya, K Nam, AK Manna, J Kang, C Lyi, A Jain, SM Yusuf, P Khuntia, B Sana, Vinod Kumar, A.V. Mahajan, Deepak R Patil, Kee Hoon Kim, SK Panda, B Koteswararao, Phys. Rev. B 104, 184402 (2021).

2020

1. NMR study of magnetic structure and hyperfine interactions in binary helimagnet FeP, A.A. Gippius, A.V. Tkachev, S.V. Zhurenko, A.V. Mahajan, N. B¨uttgen, M. Schaedler, I.O. Chernyavskii, I.V. Morozov, S. Aswartham,  B. B¨uchner, and A.S. Moskvin, Phys. Rev. B 102, 214416 (2020).

2. Gapless quantum spin liquid in the triangular system Sr3CuSb2O9, S. Kundu, Aga Shahee, Atasi Chakraborty, K. M. Ranjith, B. Koo, Jörg Sichelschmidt, Mark T. F. Telling, P. K. Biswas, M. Baenitz, I. Dasgupta, Sumiran Pujari, and A. V. Mahajan ,  Phys. Rev. Lett.  125, 267202 (2020).

3. Spin-1/2 chain compound Ba2Cu2Te2P2O13: magnetization, specific heat, and local-probe NMR, Vinod Kumar, Aga Shahee, S. Kundu, M. Baenitz, and A. V. Mahajan, Phys. Rev. B 102, 104419 (2020).

4. Signatures of a spin-1/2  cooperative paramagnet in the diluted triangular lattice of Y2CuTiO6, S. Kundu, Akmal Hossain, Pranava Keerthi S., Ranjan Das, M. Baenitz, Peter J. Baker, Jean-Christophe Orain, D. C. Joshi, Roland Mathieu, Priya Mahadevan, Sumiran Pujari, Subhro Bhattacharjee, A. V. Mahajan, and D. D. Sarma, Phys. Rev. Lett. 125, 117206 (2020).

5. Thermodynamic and resonant properties of mixed spin compounds ACuFe2 (VO4) 3 (A= Li, Na), A Koshelev, L Shvanskaya, O Volkova, K Zakharov, F Theuss, C Koo, R Klingeler, S Kamusella, H-H Klauss, S Kundu, S Bachhar, AV Mahajan, P Khuntia, D Khanam, B Rahaman, T Saha-Dasgupta, A Vasiliev, Journal of Alloys and Compounds 842 , 155763 (2020).

6. Contrasting temperature dependence of the band gap in CH3NH3PbX3 (X=I, Br, Cl) : Insight from lattice dilation and electron-phonon coupling, Rishabh Saxena, Jiban Kangsabanik, Ayush Kumar, Aga Shahee, Shivam Singh, Nakul Jain, Supriti Ghorui, Vinod Kumar, Avinash V Mahajan, Aftab Alam, Dinesh Kabra, Phys. Rev. B 102, 081201 (2020).

7. LiZn2V3O8: A new geometrically frustrated cluster spin-glass, S. Kundu, T. Dey, A. V. Mahajan and N. Buettgen, Journal  of Physics: Condensed Matter 32, 115601 (2020) .

2017

1. Bose-Einstein condensation of triplons in the S=1 tetramer antiferromagnet K2Ni2(MoO4)3: A compound close to a quantum critical point, B. Koteswararao, P. Khuntia, R. Kumar, A.V. Mahajan, A. Yogi, M. Baenitz, Y. Skourski, F.C. Chou, Phys. Rev. B 95, 180407(R) (2017).

2. Singlet ground state in the spin 1/2 weakly coupled dimer compound NH4[(V2 O3)2(4,4′-bpy)2(H2PO4)(PO4)2]·0.5 H2O, U. Arjun, V. Kumar, P.K. Anjana, A. Thirumurugan, J. Sichelschmidt, A.V. Mahajan, R. Nath, Phys. Rev. B 95, 174421 (2017). 

2016

1. Spin liquid state in the 3D frustrated antiferromagnet PbCuTe2O6: NMR and muon spin relaxation studies, P. Khuntia, F. Bert, P. Mendels, B. Koteswararao, A. V. Mahajan, M. Baenitz, F. C. Chou, C. Baines, A. Amato, and Y. Furukawa, Phys. Rev. Lett. 116, 107203 (2016).

2. Spin liquid state in the disordered triangular lattice Sc2Ga2CuO7 revealed by NMR, P. Khuntia, R. Kumar, A. V. Mahajan, M. Baenitz, and Y. Furukawa, Phys. Rev. B 93, 140408(R) (2016).

3. Long-range antiferromagnetic order and possible field induced spin-flop transition in BiMnVO5, S. Chowki, R. Kumar, N. Mohapatra, and A.V. Mahajan, Journal of Physics: Condensed Matter 28, 486002 (2016).

4. Magnetic properties and the effect of non-magnetic impurities in the quasi-2D quantum magnet, P. Khuntia, T. Dey, and A.V. Mahajan, Materials Research Express 3, 096101 (2016).

5. Ba3MxTi3−xO9 (M=Ir, Rh): A family of 5d/4d-based diluted quantum spin liquids, R. Kumar, D. Sheptyakov, P. Khuntia, K. Rolfs, P. G. Freeman, H. M. Rønnow, Tusharkanti Dey, M. Baenitz, and A. V. Mahajan, Phys. Rev. B 94, 174410 (2016).

2015

1. Cluster spin glass behavior in geometrically frustrated Zn3V3O8, T. Chakrabarty, A.V. Mahajan, Susanta Kundu, Journal of Physics: Condensed Matter 26, 405601 (2014).

2. Antiferromagnetism of Zn2VO(PO4)2 and the dilution with Ti4+, A. Yogi, N. Ahmed, R. Nath, A. A. Tsirlin, S. Kundu, A. V. Mahajan, J. Sichelschmidt, B. Roy, and Y. Furukawa, Phys. Rev. B 91, 024413 (2015).

3. Observation of S = 1/2 quasi-1D magnetic and magneto-dielectric behavior in a cubic SrCuTe2O6, B. Koteswararao, S. K. Panda, R. Kumar, Kyongjun Yoo, A. V. Mahajan, I. Dasgupta, B. H. Chen, Kee Hoon Kim, and F. C. Chou, Journal of Physics: Condensed Matter 27, 426001 (2015).

4. Sc2Ga2CuO7: A possible Quantum spin liquid near the percolation threshold, R. Kumar, P. Khuntia, D. Sheptyakov, P.G. Freeman, H.M. Rønnow, B. Koteswararao, M. Baenitz, M. Jeong, and A.V. Mahajan, Phys. Rev. B 92, 180411(R) (2015). 

2014

1. Magnetic properties and heat capacity of the three-dimensional frustrated S=1/2 antiferromagnet PbCuTe2O6, B. Koteswararao, R. Kumar, P. Khuntia, Sayantika Bhowal, S. K. Panda, M. R. Rahman, A.V. Mahajan, I. Dasgupta, M. Baenitz, Kee Hoon Kim, and F.C. Chou, Phys. Rev. B 90, 035141 (2014).

2. Unconventional magnetism in the spin-orbit driven Mott insulators Ba3MIr2O9 (M=Sc,Y), Tusharkanti Dey, R. Kumar, A. V. Mahajan, S. D. Kaushik, and V. Siruguri, Phys. Rev. B 89, 205101 (2014)

3. Li2ZnV3O8: a vanadium-based geometrically frustrated spinel system, T. Chakrabarty, A.V. Mahajan, and B. Koteswararao, Journal of Physics: Condensed Matter 26, 265601 (2014).

2013

1. Frustration induced disordered magnetism in Ba3RuTi2O9, T. Dey and A.V. Mahajan, Eur. Phys. J. B 86, 247 (2013) 

2. BaV3O8: A possible Majumdar-Ghosh system with S = ½, T. Chakrabarty, A.V.Mahajan, A. A. Gippius, A. V. Tkachev, N. Buettgen, and W. Kraetschmer, Phys. Rev. B 88, 014433 (2013).

3. PbCu3TeO7: An S = ½ staircase Kagome lattice with significant intra- and inter-plane couplings, B. Koteswararao, R. Kumar, Jayita Chakraborty, Byung-Gu Jeon, A.V. Mahajan, I. Dasgupta, Kee Hoon Kim, and F.C. Chou, Journal of Physics: Condensed Matter 25, 336003 (2013).

4. 75As NMR local probe study of magnetism in (Eu1-xKx)Fe2As2, Tusharkanti Dey, P. Khuntia, A.V. Mahajan, Anupam, Z. Hossain, Eur. Phys. J. B 86, 458 (2013).

5. Possible spin-obit driven spin-liquid ground state in the double perovskite phase of Ba3YIr2O9, Tusharkanti Dey, A.V. Mahajan, R. Kumar, B. Koteswararao, F.C. Chou, A.A. Omrani, and H. M. Ronnow, Phys. Rev. B 88, 134425 (2013).

2012

1. Magnetic behaviour of Ba3Cu3Sc4O12, B. Koteswararao,  A.V. Mahajan, F. Bert, P. Mendels, J. Chakraborty, V. Singh, I. Dasgupta, S. Rayaprol, V. Siruguri, A. Hoser, and S.D. Kaushik, Journal of Physics: Condensed Matter 24, 236001 (2012).

2. Direct evidence of non-Zhang-Rice Cu3+ centers in La2Li0.5Cu0.5O4, A. S. Moskvin, A. A. Gippius, A. V. Tkachev, A.V. Mahajan, T. Chakrabarty, I. A. Presniakov, A. V. Sobolev and G. Demazeau, Phys. Rev. B 86, 241107 (2012) (Rapid Comm.)  

3. Spin-liquid behavior in Jeff=1/2 triangular lattice compound Ba3IrTi2O9, Tusharkanti Dey, A.V. Mahajan, P. Khuntia, M. Baenitz, B. Koteswararao and F.C. Chou, Phys. Rev. B 86, 140405 (2012) (Rapid Comm.) 

2011

1. 119Sn NMR probe of magnetic fluctuations in SnO­2 nanoparticles, Tusharkanti Dey, P. Khuntia, A.V. Mahajan, Nitesh Kumar and A. Sundaresan, Europhysics Letters 96, 67008 (2011). 

2. Magnetic properties and spin dynamics in 3d-4f molecular complexes, P. Khuntia, M. Mariani, A.V. Mahajan, A. Lascialfari, F. Borsa, T. D. Pasatoiu and M. Andruh, Phys. Rev. B 84, 184439 (2011). 

3. 75As NMR study of antiferromagnetic fluctuations in Ba(Fe1-xRux)2As2, Tusharkanti Dey, P. Khuntia, A.V. Mahajan, Shilpam Sharma and A. Bharathi, Journal of Physics: Condensed Matter 23, 475701 (2011).

2010

1. Doping effects in the coupled, two-leg spin ladder BiCu2PO6, B. Koteswararao, A.V. Mahajan, L.K. Alexander, and J. Bobroff  Journal of Physics: Condensed Matter 22, 035601 (2010).

2. Impurity effects in coupled-ladder BiCu2PO6 studied by NMR and quantum Monte Carlo simulations, L.K. Alexander, J. Bobroff, A.V.Mahajan, B. Koteswararao, N. Laflorencie, and F. Alet, Phys. Rev. B 81, 054438 (2010).

3. Magnetic susceptibility and heat capacity of a novel antiferromagnet: LiNi2P3O10 and the effect of doping, P. Khuntia and A.V.Mahajan, Journal of Physics: Condensed Matter 22, 296002 (2010). 

2009

• 1. Electronic structure of  Na2CuP2O7: A nearly 2D Heisenberg antiferromagnetic system, S. Salunke, V.R. Singh, A.V. Mahajan, and I. Dasgupta, Journal of Physics: Condensed Matter 21, 025603 (2009).

  2. Reply to “ Comment on ‘Electronic structure of spin-1/2 Heisenberg antiferromagnetic systems: Ba2Cu(PO4)2 and Sr2Cu(PO4)2’ ”Sarita S. Salunke, M.A.H. Ahsan, R. Nath, A.V. Mahajan, and I. Dasgupta. Phys. Rev. B 79, 127102 (2009).

  3. Spin dynamics in Heisenberg triangular antiferromagnets: A muSR study of LiCrO2, A. Olariu, P. Mendels, F. Bert, L. K. Alexander, A. V. Mahajan, A. D. Hillier, and A. Amato Phys. Rev. B 79, 224401 (2009).

  4. Impurity-induced magnetic order in low-dimensional spin-gapped materials, J. Bobroff, N. Laflorencie, L.K. Alexander, B. Koteswararao, A.V. Mahajan, P. Mendels Phys. Rev. Lett. 103, 047201 (2009).

  5. Vortex dynamics and frustration in two dimensional triangular chromium lattices, M. Hemmida, H.-A. Krug von Nidda, N. Buettgen, A. Loidl, L. K. Alexander, R. Nath, A. V. Mahajan, R. F. Berger, R. J. Cava, Y. Singh, and D. C. Johnston, Phys. Rev. B 80, 054406 (2009).

2008

• 1. Magnetic properties and electronic structure of S = 1/2  spin gap compound BaCu2V2O8, Sarita S. Salunke, A.V. Mahajan, and I. Dasgupta Phys. Rev. B 77, 012410 (2008).

2007

• 1. 7Li NMR studies on the triangular lattice system LiCrO2,   L.K. Alexander, N. Buettgen, R. Nath, A.V.Mahajan, and A. Loidl.  Phys. Rev. B 76, 064429 (2007).

  2. Electronic structure of spin-1/2 Heisenberg  antiferromagnetic systems: Ba2Cu(PO4)2 and Sr2Cu(PO4)2 Sarita S. Salunke, M.A.H. Ahsan, R. Nath, A.V. Mahajan, and I. Dasgupta. Phys. Rev. B 76, 085104 (2007).

  3. Spin-gap behavior in the two-leg spin-ladder BiCu2PO6, B. Koteswararao, S. Salunke, A.V. Mahajan, I. Dasgupta, J. Bobroff. Phys. Rev. B 76, 052402 (2007).

2006

• 1. 31P NMR study of Na2CuP2O7:  an S=1/2  two-dimensional Heisenberg  antiferromagnetic system, R. Nath, A. V. Mahajan, N. Buettgen, C. Kegler, and A. Loidl, Journal of Physics:Condensed Matter 18, 4285 (2006).

  2. 31P NMR study of the spin S = ½ quasi-1D Heisenberg antiferromagnet BaCuP2O7, A. V. Mahajan, R. Nath, N. Buettgen, C. Kegler, A. Loidl, and J. Bobroff.  Physica B 378-380, 1148 (2006).

  3. NMR study of lineshifts and relaxation rates of the one-dimensional antiferromagnet LiCuVO­4, C. Kegler, N. Buettgen, H.-A. Krug von Nidda, A. Loidl, R. Nath, A. V. Mahajan, A. V. Prokofiev, and W. Assmus Phys. Rev. B 73, 104418 (2006).

2005

• 1. Study of one-dimensional nature of (Sr,Ba)2Cu(PO4)2 and  BaCuP2O7 via 31P NMR,   R. Nath, A. V. Mahajan, N. Buettgen, C. Kegler,  A. Loidl, and J. Bobroff, Phys. Rev. B 71, 174436 (2005).

  2. Effect of doping in BaNi2V2O8, a two-dimensional honeycomb antiferromagnet R. Nath, J. Das, A. V. Mahajan,  Physica B. 369, 72 (2005).

2004

1. Universal behaviour of spinless defects in the Haldane chain Y2Ba(Ni, Zn)O5: a    study via bulk (SQUID) and local (NMR) probes, J. Das, A. V. Mahajan, J. Bobroff, and H. Alloul, Journal of Magnetism and Magnetic Materials 272-276, E693 (2004).

2. Comparison of S = 0 and S = ½ impurities in the Haldane chain compound Y2BaNiO5, J. Das, A. V. Mahajan, J. Bobroff, H. Alloul, F. Alet, and E. S. Sorensen, Phys. Rev. B 69, 144404 (2004).

2002

1. Absence of Static Phase Separation in the High Tc Cuprate YBa2Cu3O6 + yJ. Bobroff, H. Alloul, S. Ouazi, P. Mendels, A. Mahajan, N. Blanchard, G. Collin, V. Guillen, and J.-F. Marucco, Physical Review Letters 89, 157002 (2002). 

2001

1. Magnetic Susceptibilities of Spin-1/2 Antiferromagnetic Heisenberg Ladders and Applications to Ladder Oxide Compounds, D.C. Johnston, M. Troyer, S. Miyahara, D. Lidsky, K. Ueda, M. Azuma, Z. Hiroi, M. Takano, M. Isobe, Y. Ueda, M.A. Korotin, V.I. Anisimov, A.V. Mahajan, and L.L. Miller, cond-mat/000147.

2. Magnetic Properties of Ni doped Sr2CuO3,  A.V. Mahajan and N. Venkataramani, Phys. Rev. B 64, 092410 (2001).

2000

1.  89Y NMR probe of Zn Induced Local Magnetism in YBa2(Cu1-yZny)3O6+x, A.V. Mahajan, H. Alloul, G. Collin, and J.F. Marucco, European Physics Journal B 13, 457 (2000).

2.  Magnetism and Spin Dynamics in the cluster compound [Cr4S(O2CCH3)8(H2O)4](NO3)2.H2O, Y. Furukawa, M. Luban, F. Borsa, D.C. Johnston, A.V. Mahajan, L.L. Miller, D. Mentrup, J. Schnack, and A. Bino, Phys. Rev. B 61, 8635 (2000). 

1998

1.  7Li and 51V NMR study of the Heavy-Fermion compound LiV2O4,  A.V. Mahajan, R. Sala, E. Lee, F.Borsa, S. Kondo, and D.C. Johnston, Physical Review B 57, 8890 (1998).  

1997

1.      LiV2O4: A Heavy Fermion Transition Metal Oxide, S. Kondo, D.C. Johnston, C.A. Swenson, F. Borsa, A.V. Mahajan, L.L. Miller, T. Gu, A.I. Goldman, M.B. Maple, D.A. Gajewski, E.J. Freeman, N.R. Dilley, R.P. Dickey, J. Merrin, K. Kojima, G.M. Luke, Y.J. Uemura, O. Chmaissem, and J.D. Jorgenson, Physical Review Letters 78, 3729 (1997). 

2.      NMR Studies of the Original Magnetic Properties of Cuprates: Effect of   Impurities and Defects, H.Alloul, J.Bobroff, A.V.Mahajan, P.Mendels, and Y.Yoshinari, Physica C 282-287, 226 (1997). 

1996

1.  11B and 195Pt NMR Studies in the Normal State of Substituted Borocarbide Superconductor Y0.98Er0.02Ni2B2C and LaPt1.5Au0.6B2C, K. Elankumaran, A.V. Mahajan, Z. Hossain, L.C. Gupta, R. Nagarajan, R. Vijayaraghavan, Physica B 223-224, 90 (1996). 

2.  11B NMR in YNi2B2C, T. Oda, Y. Iwmoto, K. Ueda, T. Kohara, A.V. Mahajan, K. Elankumaran, Z. Hossain, L.C. Gupta, R. Nagarajan, R. Vijayaraghavan, and C. Mazumdar, Physica B 223-224, 79 (1996). 

1995

1. Superconducting Energy Gap and Antiferromagnetic Spin Fluctuations in the Superconductor YNi2B2C: An NMR Study, T. Kohara, T. Oda, K. Ueda, Y. Yamada, A.V. Mahajan, K. Elankumaran, Z. Hossain, L.C. Gupta, R. Nagarajan, R. Vijayaraghavan, C. Mazumdar, Physical Review B 51, 3985 (1995).

2. Superconductivity, Magnetism and Metal-Insulator Transitions in some Ternary and Pseudoternary 3d-, 4d-, and 5d-Metal Oxides, D.C. Johnston, T. Ami, F. Borsa, M.K. Crawford, J.A. Fernandez-Baca, K.H. Kim, R.L. Harlow, A.V. Mahajan, L.L. Miller, M.A. Subramanian, D.R. Torgeson, and Z.R. Wang, in Spectroscopy of Mott Insulators and Correlated Metals Eds: A. Fujimori and Y. Tokura, Springer Series in Solid State Sciences, vol. 119, Springer-Verlag (1995). 

1994

1.    89Y NMR Probe of Zn Induced Local Moments in YBa2(Cu1-yZny)3O6+x, A.V. Mahajan, H. Alloul, G. Collin, and J.-F. Marruco, Physical Review Letters 72, 3100 (1994).  

2.   89Y NMR of YBa2Cu3O6.71 in the Mixed State, K. Mizuno, A.V. Mahajan, H. Alloul, and T. Saito,  Physica B 194-196, 2159 (1994). 

3.    Comparison of Ni and Zn doped YBa2Cu3O7 by 89Y NMR, T.M. Riseman, H. Alloul, A.V. Mahajan, P. Mendels, G. Collin, N. Blanchard, J.F. Marucco, Physica C, 235-240, 1593 (1994). 

1993

1.  89Y NMR Study of the Anisotropy of the Static and Dynamic Susceptibility of the CuO2 planes on Oriented YBCO powders, H. Alloul, A.V. Mahajan, H. Casalta, and O. Klein, Physical Review Letters 70, 1171 (1993). 

1992

1. Structural, Electronic, and Magnetic Properties of LaxSr1-xVO3 (0.1 < x < 1.0), A.V. Mahajan, D.C. Johnston, D.R. Torgeson, and F. Borsa, Phys. Rev. B 46, 10973 (1992).

2. Magnetic Properties of LaVO3, A.V. Mahajan, D.C. Johnston, D.R. Torgeson, and F. Borsa,  Phys. Rev. B 46, 10966 (1992). 

1991

1. Magnetic and Electronic Properties of LaxSr1-xVO3, A.V. Mahajan, D.C. Johnston, D.R. Torgeson, and F. Borsa, Physica C 185-189, 1195 (1991).