Dr. Vijay Raj Singh

Dr. Singh’s project on Diluted Magnetic Semiconductors (DMS), Heusler alloy and Complex Oxides including Ferroelectrics and Ferromagnetic oxides culminated in another breakthrough for electronic and information technologies. Here, he investigates the electronic and magnetic properties of thin films and Nano powders using advance Synchrotron based X-ray techniques. Dr. Singh again used X-Ray and Neutron scattering, combined with other techniques (XRD, AFM, I-V, C-V and SQUID), to study these materials in thin films (surface and bulk) and nano powders form, where he demonstrates detailed behaviour of magnetic phenomenon. Dr. Singh’s work promotes research for dense data storage and represents an important breakthrough in spintronics.

• Publications:
1. P. Kumari, M. Zzaman, S. Jena, M. Kumar, R. R. Bharadwaj, V. K. Verma, R. Shahid, K. Amemiya, and V. R. Singh, “Electronic and Magnetic Properties of Chemical Solution Deposited BiFeO3 Thin Film: a Soft X-ray Magnetic Circular Dichroism Study” J. of Super. and Nov. Mag. 34, 1119 (2021). [Impact Factor: 1.06] doi: https://doi.org/10.1007/s10948-021-05840-y
2. R. Nongjai, R. Samad, V.R. Singh, V.K. Verma, A. Kandasami, “Magnetic and electronic structures of N implanted iron oxide thin films” J. of Mag. and Mag. Mats. 527, 167703 (2021). [Impact Factor: 2.7] doi: https://doi.org/10.1016/j.jmmm.2020.167703
3. V. R. Singh, V. Jovic, I. Valmianski, J. G. Ramirez, B. Lamoureux, I. K. Schuller and K. E. Smith, “Irreversible metal-insulator transition in thin film VO2 induced by soft X-ray irradiation,” Appl. Phys. Lett. 111, 241605 (2017). [Impact Factor: 3.8] doi: https://doi.org/10.1063/1.5012940
4. B. Lamoureus, V. Jovic, V. R. Singh, and K. E. Smith, “Orbital orientation mapping of V2O5 thin films” J. Appl. Phys. 122, 045305 (2017). [Impact Factor:2.2] doi: dx.doi.org/10.1063/1.4993912
5. D. Li, Z. Xiao, H. R. Golgir, L. Jiang, V. R. Singh, K. Keramatnejad, K. E. Smith, X. Hong, L. Jiang, J.-F. Silvain, and Y. Lu, “Large-Area 2D/3D MoS2-MoO2 Heterostructures with Thermally Stable Exciton and Intriguing Electrical Transport Behaviors” Advanced Electronic Materials, 3, 1600335 (2017). [Impact Factor: 10] doi: 10.1002/aelm.201600335
6. V. Jovic, A. J. E. Rettie, V. R. Singh, J. Zhou, B. Lamoureux, C. Mullins, H. Bluhm, J. Laverock and K. Eugene Smith, “A soft x-ray spectroscopic perspective of electron localization and transport in tungsten doped bismuth vanadate single crystals” Phys. Chem. Chem. Phys 18, 31958 (2016).[Impact Factor: 4.5] doi: 10.1039/c6cp04526j
7. 0 B. Lamoureus, V. R. Singh, V. Jovic, T. Y. Su and K. E. Smith “Structural and Electronic Properties of Thermally Evaporated V2O5 Epitaxial Thin Films” Thin Solid Films 615, 409-414 (2016).[Impact Factor : 1.9] doi: dx.doi.org/10.1016/j.tsf.2016.07.062
8. A. Rajapitamahuni, L. Zhang, M. A. Koten, V. R. Singh, J. D. Burton, E. Y. Tsymbal, J. E. Shield, and X. Hong, “Giant Enhancement of Magnetic Anisotropy in Ultrathin Manganite Films via Nanoscale 1D Periodic Depth Modulation” Phys. Rev. Letts. 116, 187201 (2016).[Impact Factor : 7.6] doi: 10.1103/PhysRevLett.116.187201
9. Vedran Jovic, Jude Laverock, Alexander J. E. Rettie, Jianshi Zhou, C. Buddie Mullins, Vijay Raj Singh, Daniel Wilson, Tilo Söhne, Branislav Jovic and Kevin E. Smith, “Soft X-Ray Spectroscopic Studies of the Electronic Structure in M-BiVO4 (M = Mo or W) Single Crystals” J. of Mats. Chem. A 3, 23743 (2015). [Impact factor: 8.3] doi: 10.1039/c5ta07898a
10. 0 K. Ishigami, K. Yoshimatsu, D. Toyota, M. Takizawa, T. Yoshida, G. Shibata, T. Harano, Y. Takahashi, T. Kadono, V. K. Verma, V. R. Singh, Y. Takeda, T. Okane, Y. Saitoh, H. Yamagami, T. Koide, M. Oshima, H. Kumigashira, and A. Fujimori, “Thickness-dependent magnetic transition and strain-induced orbital magnetic moment in SrRuO3 thin lm studied by X-ray magnetic circular dichroism” Phys. Rev. B 92, 064402 (2015). [Impact Factor: 3.7] doi: 10.1103/PhysRevB.92.064402
11. V. R. Singh, V. K. Verma, K. Ishigami, G. Shibata, A. Fujimori, T. Koide, Y. Miura, M. Shirai, T. Ishikawa, G. f. Li and M. Yamamoto, “Electronic and magnetic properties of off-stoichiometric Co2MnSi/MgO interfaces studied by x-ray magnetic circular dichroism” J. Appl. Phys. 117, 203901 (2015). [Impact factor: 2.2] doi: 10.1063/1.4921538
12. L. Zhang, H. Gardner, X. Chen, V. R. Singh and X. Hong, “Strain Induced Modulation of the Correlated Transport in Epitaxial Sm0.5Nd0.5NiO3 Thin Films", J. of Phys.: Cond. Mat. 27,132201 (2015). [Impact Factor: 2.2] doi: 10.1088/0953-8984/27/13/132201
13. V. R. Singh, L. Zhang, A. Rajapitamahuni, N. Devries and X. Hong, “Non-linear transport in nanoscale phase separated colossal magnetoresistive oxide thin films” J. Appl. Phys. 116, 033914 (2014).[Impact Factor:2.2] doi: 10.1063/1.4890605
14. Y. Takahashi, T. Kadono, S. Yamamoto, V. R. Singh, V. K. Verma, K. Ishigami, G. Shibata, T. Harano, A. Fujimori, Y. Takeda, T. Okane, Y. Saitoh, H. Yamagami, and M. Takano “Orbital magnetic moment and coercivity of SiO2 -coated FePt nanoparticles studied by x-ray magnetic circular dichroisms” Phys. Rev. B 90, 024423 (2014).[Impact Factor: 3.7] doi: 10.1103/PhysRevB.90.024423
15. G. Shibata, K. Yoshimatsu, E. Sakai, V. R. Singh, V. K. Verma, K. Ishigami, T. Harano, T. Kadono, Y. Takeda, T. Okane, Y. Saitoh, H. Yamagami, A. Sawa, H. Kumigashira, M. Oshima, T. Koide, and A. Fujimori “Thickness-dependent ferromagnetic metal to paramagnetic insulator transition in La0.6Sr0.4MnO3 thin films studied by x-ray magnetic circular dichroism” Phys. Rev. B. 89, 235123 (2014). [Impact Factor: 3.7] doi: 10.1103/PhysRevB.89.235123
16. V. K. Verma, V. R. Singh, K. Ishigami G. Shibata, T. Harano, T. Kadono A. Fujimori, F.-H. Chang, H.-J. Lin D.-J. Huang, C. T. Chen, Yi Zhang Jing Liu, Yuanhua Lin, Ce-Wen Nan and A. Tanaka “Origin of enhanced magnetoelectric coupling in BaTiO3/NiFe2O4 multilayers studied by x-ray magnetic circular dichroism” Phys. Rev. B 89, 115128 (2014). [Impact Factor: 3.7] doi: 10.1103/PhysRevB.89.115128
17. V. R. Singh, V. K. Verma, K. Ishigami, G. Shibata, Y. Yamazaki, A. Fujimori, Y. Takeda, T. Okane, Y. Saitoh, H. Yamagami, Y. Nakamura, M. Azuma and Y. Shimakawa “Enhanced ferromagnetic moment in Co-doped BiFeO3 thin films studied by soft X-ray circular dichroism” J. Appl. Phys. 114, 103905 (2013). [Impact Factor: 2.2] doi: 10.1063/1.4821024
18. T. Harano, G. Shibata, K. Ishigami, Y. Takashashi, V. K. Verma, V. R. Singh, T. Kadono, A. Fujimori, Y. Takeda, T. Okane, Y. Saitoh, H. Yamagami, T. Koide, H. Yamada, A. Sawa, M. Kawasaki, Y. Tokura, A. Tanaka “Role of doped Ru in coercivity-enhanced La0.6Sr0.4MnO3 thin film studied by x-ray magnetic circular dichroism” Appl. Phys. Lett. 102, 222404, (2013). [Impact Factor: 3.8] doi: dx.doi.org/10.1063/1.4808090
19. T. Kataoka, Y. Yamazaki, V. R. Singh, Y. Sakamoto, K. Ishigami, V. K. Verma, A. Fujimori, F.-H. Chang, H.-J. Lin, D. J. Huang, C. T. Chen, D. Asakura, T. Koide, A. Tanaka, D. Karmakar, S. K. Mandal, T. K. Nath and I. Dasgupta,” X-ray absorption spectroscopy and X-ray magnetic circular dichroism studies of transition-metal-co-doped ZnO nano-particles” e-J. Surf. Sci. Tech. 10, 594 (2012).[Impact Factor:0.6] doi: 10.1380/ejssnt.2012.594
20. V. R. Singh, V. K. Verma, K. Ishigami, G.Shibata, T. Kadono , A. Fujimori, D. Asakura , T. Koide, Y. Miura , M. Shirai, L.-f. Li, T. Ishikawa and M. Yamamoto “Effects of off-stoichiometry on the spin polarization at the Co2Mn𝛽Ge0.38/MgO interfaces: X-ray magnetic circular dichroism study” Phys. Rev. B 86,144412, (2012). [Impact Factor: 3.7] doi: 10.1103/PhysRevB.86.144412
21. V. R. Singh, K. Ishigami, V. K. Verma, G. Shibata, Y. Yamazaki, T. Kataoka, A. Fujimori, F.-H. Chang, D.-J. Huang, H.-J. Lin, C. T. Chen, Y. Yamada, T. Fukumura, and M. Kawasaki “Ferromagnetism of cobalt-doped anatase TiO2 studied by bulk- and surface-sensitive soft x-ray magnetic circular dichroism” Appl. Phys. Lett.100, 242404 (2012). [Impact Factor: 3.8] doi: 10.1063/1.4729123
22. T. Kataoka, Y. Sakamoto, V. R. Singh, Y. Yamazaki, A. Fujimori, Y. Takeda, T. Ohkochi, T. Okane, Y. Saitoh, H. Yamagami, and A.Tanaka, “Electronic configuration of Mn ions in the π-d molecular ferromagnet β-Mn phthalocyanine studied by soft X-ray magnetic circular dichroism”, Solid State Commu. 152, 806-809 (2012). [Impact Factor: 1.9] doi: 10.1016/j.ssc.2012.01.036
23. T. Kataoka, Y. Yamazaki, V. R. Singh, A. Fujimori, F.-H. Chang, H.-J. Lin, D. J. Huang, C. T. Chen, G. Z. Xing, J. W. Seo, C. Panagopoulos, and T. Wu “Ferromagnetic interaction between Cu ions in the bulk region of Cu-doped ZnO nanowires” Phys. Rev. B. 84, 153203 (2011). [Impact Factor: 3.7] doi: 10.1103/PhysRevB.84.153203
24. T. Kataoka, Y. Yamazaki , V. R. Singh, Y. Sakamoto, M. Kobayashi, A. Fujimori, F.-H. Chang, H.-J. Lin, D. J. Huang, C. T. Chen, D. Asakura , T. Koide, Y. Takeda, T. Okane, Y. Saitoh, H. Yamagami, A. Tanaka, M. Kapilashrami, L. Belova and K. V. Rao “Ferromagnetism in ZnO co-doped with Mn and N studied by soft x-ray magnetic circular dichroism”, Appl. Phys. Lett. 99, 132508, (2011). [Impact Factor 3.8] doi: 10.1063/1.3643044
25. Y. Yamazaki, T. Kataoka, V. R. Singh, A. Fujimori, F.-H. Chang, D. -J. Huang, H. -J. Lin and C. T. Chen, K. Ishikawa, K. Zhang, S. Kuroda “Effect of Co-doping of donor and acceptor impurities in the ferromagnetic semiconductor Zn1-xCrxTe studied by soft x-ray magnetic circular dichroism” J. of Phys.: Cond. Mat. 23, 176002, (2011). [Impact Factor: 2.2] doi:10.1088/0953-8984/23/17/176002
26. V. R. Singh, Y. Sakamoto, T. Kataoka, Y. Yamazaki, A. Fujimori, F.-H. Chang, D. -J. Huang, H. -J. Lin and C. T. Chen, Y. Yamada, T. Fukumura, M. Kawasaki “Bulk and Surface Magnetization of Co atoms in Rutile Ti1−xCoxO2−δ Thin Films Revealed by X-Ray Magnetic Circular Dichroism” J. of Phys.: Cond. Mat. 23, 176001, (2011). [Impact factor: 2.2] doi:10.1088/0953-8984/23/17/176001
27. D. Asakura, V. R. Singh ,T. Koide, K. Amemiya, S. Yamamoto, K. Tsuchiya, T. Shioya, T. Kataoka, Y. Yamazaki, Y. Sakamoto, A. Fujimori, T. Taira and M. Yamamoto “Magnetic states of Mn and Co atoms at the Co2MnGe/MgO interfaces: A soft x-ray magnetic circular dichroism study” Phys. Rev. B, 82, 184419, (2010). [Impact factor: 3.7] doi: 10.1103/PhysRevB.82.184419
28. V. R. Singh, S. Kar, A. Garg, “Synthesis and characterization of solution processed BiFeO3-PbTiO3 thin films”, In. J. of Engg. and Mat. Sci., 15, 107, (2008). [Impact Factor: 0.6] doi: 10.107/IJEMS.15.107
29. V. R. Singh, A. Garg, D. C. Agrawal “Structural Changes in Lanthanum Doped Bismuth Ferrite Thin Films” Appl. Phys. Lett. 92, 152905, (2008). [Impact Factor: 3.8] doi: 10.1063/1.2901017
30. V. R. Singh, A. Dixit, A. Garg, D. C. Agrawal “Effect of Heat Treatment on the Structure and Properties of Chemical Solution Processed Multiferroic BiFeO3 Thin Films”, Appl. Phys. A: Mat. Sci. & Proc., 90, 197, (2008). [Impact Factor: 1.7] doi: 10.1007/s00339-007-4257-5

1. T. Kataoka, Y. Sakamaki, V. R. Singh, Y. Yamazaki, A. Fujimori, D. Asakura T. Koide, M. Kapilashrami, L. Belova and K. V Rao “Effect of hole doping in ferromagnetic semiconductor Mn-doped ZnO thin films studied by X-ray magnetic Circular dichroism” Photon Factory Activity Report 2008 #26 Part B (2009), KEK-PF Japan. http://pfwww.kek.jp/acr2008pdf/part_b/pf08b136.pdf
2. V. K. Verma, V. R. Singh, K. Ishigami, G. Shibata, T. Kadono, A. Fujimori, T. Koide, K. Ishikawa, K. Kanazawa and S. Kuroda, “X-ray absorption spectroscopy and x-ray magnetic circular dichroism study of Cr-doped CdMnTe”, Photon Factory Activity Report 2010 #28 Part B (2011), KEK-PF Japan. http://pfwww.kek.jp/acr2010pdf/part_b/pf10b112.pdf
3. V. R. Singh, V. K. Verma, K. Ishigami, Y. Yamazaki, G. Shibata, T. Kadono, A. Fujimori, T. Koide, T. Ishikawa, L. Gifang, M. Yamamoto, “Magnetic states of Co and Mn at the Co2MnSi/MgO interfaces studied by x-ray absorption spectroscopy and soft x-ray magnetic circular dichroism”, Photon Factory Activity Report 2010 #28 Part B (2011), KEK-PF Japan. http://pfwww.kek.jp/acr2010pdf/part_b/pf10b111.pdf
4. 34. G. Shibata, K. Ishigami, V. R. Singh, V. K. Verma, T. Kadono, A. Fujimori, T. Koide, K. Yoshimatsu, E. Sakai, H. Kumigashira, M. Oshima, “Thickness dependence of the x-ray magnetic circular dichroism of La0.6Sr0.4MnO3 thin films”, Photon Factory Activity Report 2010 #28 Part B (2011), KEK-PF Japan. http://pfwww.kek.jp/acr2010pdf/part_b/pf10b106.pdf
5. V. K. Verma, V. R. Singh, K. Ishigami, G. Shibata, T. Harano, T. Kadono, A. Fujimori, F.-H. Chang, H.-J. Lin, D.-J. Huang, C. T. Chen, Yi Zhang, Jing Liu, Yuanhua Lin and Ce-Wen Nan “XMCD study of magnetic oxide thin films and multilayers”, NSRRC Annual Report 2011, NSRRC Taiwan. http://www.srrc.gov.tw/
6. V. K. Verma, V. R. Singh, K. Ishigami, G. Shibata, T. Harano, T. Kadono, A. Fujimori, “Electronic structure and magnetic properties of polycrystalline MnWO4”, Spring8 Annual Report 2011, SPring8 Japan. http://www.spring8.or.jp/en/
7. V. R. Singh, V. K. Verma, K. Ishigami, Y. Yamazaki, G. Shibata, A. Fujimori, D. Asakura, T. Koide, T. Ishikawa, M. Yamamoto, “Magnetic states of Co and Mn atoms at the Co2MnGe/MgO interfaces studied by x-ray absorption spectroscopy and soft x-ray magnetic circular dichroism study”, Photon Factory Activity Report 2009 #27 Part B (2010), KEK-PF Japan. http://pfwww.kek.jp/acr2009pdf/part_b/pf09b101.pdf
8. V. K. Verma, V. R. Singh, K. Ishigami, G. Shibata, T. Harano, T. Kadono, A. Fujimori, T. Koide, K. Ohgushi, Y. Tokura, “X-ray magnetic circular dichroism study of FeCr2S4”, Photon Factory Activity Report 2011 #29 Part B (2012), KEK-PF Japan. http://pfwww.kek.jp/acr2011pdf/part_b/pf11b129.pdf
9. 39. G. Shibata, K. Ishigami, V. R. Singh, V. K. Verma, T. Kadono, A. Fujimori, T. Koide, K. Yoshimatsu, E. Sakai, H. Kumigashira, M. Oshima, “Thickness dependent metal-insulator transition in ferromagnetic La0.6Sr0.4MnO3 thin films studied by x-ray magnetic circular dichroism” Photon Factory Activity Report 2011 #29 Part B (2012), KEK-PF Japan. http://pfwww.kek.jp/acr2011pdf/part_b/pf11b141.pdf
10. T. Kadono, V. R. Singh, V. K. Verma, K. Ishigami, G. Shibata, T. Harano, A. Funimori, T. Koide, “XMCD study of spin and orbital states of FePt nano-particles coated by SiO2” Photon Factory Activity Report 2011 #29 Part B (2012), KEK-PF Japan. http://pfwww.kek.jp/acr2011pdf/part_b/pf11b131.pdf
11. 41. D. Asakura, T. Koide, K. Amamiya, S. yamamoto, K.Tsuchiya, T. Shioya, V. R. Singh, T. Kataoka, Y. Yamazaki, Y. Sakamoto, A. Fujimori, T. Taira, and M. Yamamoto’ “A Soft X-ray Magnetic Circular Dichroism Study of Co2MnGe/MgO interface” Photon Factory Activity Report 2009 #27 (2010), KEK-PF Japan. http://pfwww.kek.jp/acr2009pdf/part_a/09ah2_7.pdf
12. V. K. Verma, J. B. Franklin, G. Kim, H. Ohta, V. R. Singh, “Ferromagnetism of V1-xCrxO2 studied soft x-ray magnetic circular dichroism” Photon Factory Activity Report 2019 #37 (2020), KEK-PF Japan. http://pfwww.kek.jp/acr/2019pdf/u_reports/pf19b0101.pdf
13. A. Kumari, R. Dawn, M. Zzaman, V K. Verma, K. Amemiya, and V. R. Singh, “Magnetic properties of silica coated Fe3O4 nanoparticles using X-ray magnetic circular Dichroism” Photon Factory Activity Report 2020 #38 (2021), KEK-PF Japan. http://pfwww.kek.jp/acr/2020pdf/u_reports/pf20b0023.pdf
14. M. Zzaman, R. Dawn, A. Kumari, V. K. Verma, K. Amemiya, and V. R. Singh, “Fe3O4 Nanoparticles and their Magnetic Properties using X-Ray Magnetic Circular Dichroism” Photon Factory Activity Report 2020 #38 (2021), KEK-PF Japan. http://pfwww.kek.jp/acr/2020pdf/u_reports/pf20b0021.pdf
15. M. Zzaman, A. Kumar, R. Dawn, A. Kumari, V K. Verma, K. Amemiya, and V. R. Singh, “Soft X-ray Magnetic Circular Dichroism Study of SrRuO3 thin films” Photon Factory Activity Report 2020 #38 (2021), KEK-PF Japan. http://pfwww.kek.jp/acr/2020pdf/u_reports/pf20b0024.pdf

• Awards:
1. Council of Scientific and Industrial Research- Junior Research Fellowship ( CSIR-JRF: AIR- 3 ) Govt. of India 2005
2. Ministry of Human Resource Development Fellowship (JEST: Percentile : 94.11 with AIR- 146) Govt. of India 2005
3. Shyama Prasad Mukherjee (SPM) Fellowship Govt. of India 2006
4. Ministry of Human Resource Development fellowship (MHRD) (GATE: Percentile: 99.7 with AIR-7) Govt. of India 2006
5. Best poster award in “14th National Seminar on Ferroelectrics & Dielectrics workshop” IIT Kharagpur 2006
6. Monbukagakusho Fellowship (MEXT), Ministry of Education, Culture, Sports, Science and Technology Govt. of Japan 2008
7. Ministry of Education, Korean Government Scholarship (KGS) Govt. of S. Korea 2008
8. Cash Prize of Rs. 20000.0 from dean of student affair for publishing research papers in M. Tech. IIT Kanpur 2008
9. Sao Paulo Research Foundation Fellowship (FAPESP) (NOT Availed) Govt of Brazil 2011
10. Japan Society for the Promotion of Science (JSPS) Fellowship (NOT Availed) Govt of Japan 2011
11. Humboldt Research Fellowship (NOT Availed) Govt of Germany 2014
12. Marie Curie Fellowship (NOT Availed) European Commission 2014
13. Early Career Research Award (ECRA) SERB-DST 2018
• Projects:
1. UGC-FRPS, Start-Up Research Grant, (V. R. Singh, PI) (Year.12. 2017-09.2021)
2. DST-SERB, Early Career Research Award, (V. R. Singh, PI) (Year. 12. 2018-11.2021)
3. IUAC, New Delhi, BTR-3 Grants (V. R. Singh, PI) (Year. 1 Feb. 2021-1 Feb.2024)

Journal reviews: Nature, Nature Physics, Nature Materials, Nature Communications, Scientific Reports, Physical Review Letters, Physical Review B, Nano Letters, Small, New J. of Physics, Advanced Materials, Advanced Functional Materials, ACS Applied Materials & Interfaces, J. of Applied Physics, Applied Physics Letters, IEEE Transactions on Magnetics; Physica B: Condensed Matter, J. Magnetism and Magnetic Materials, J. of Physics: Condensed Matter, Journal of Physics and Chemistry of Solids, Materials Science & Engineering B, Chemical Physics, Polymer Composites, Solid State Communications, Thin Solid Films, J. of Alloys and Compounds, Acta Materials, Surface and Coatings Technology, J. of Space Science and Astrophysics, Journal of Materials Science & amp Technology, Surface Review & Letters and so on.