Occupational field:

Magnetic and electrical properties in nanostructured oxide &multiferroics materials and micro-magnetic device applications

Occupation or position held:

2016 – 2019: Postdoctoral fellow, Department of Materials Science, University of Cambridge, UK.

2014 – 2016: Research Associate, Department of Physics,Indian Institute of Technology Kharagpur, India

2009 – 2014:Ph. D. Student, Department of Physics,Indian Institute of Technology Kharagpur, India

2008 – 2009:Project Scholar, Department of Physics,Indian Institute of Technology Kharagpur, India

Internatinal:

1. Influence of atomic roughness at the uncompensated Fe/CoO (111) interface on the exchange-bias effect, R. Wu, M. Xue, T. Maity, Y. Peng, S. K. Giri, G. Tian, JL MacManus-Driscoll,Jinbo Yang, Physical Review B,101 (1), 014425 (2020).
2. Strain induced extrinsic magnetocaloric effects in La_0.67Sr_0.33MnO₃ thin films, controlled by magnetic field, S. K. Giri, JL MacManus-Driscoll, W. Li, R. Wu, T. K. Nath, T. S. Maity, Journal of Physics D: Applied Physics,52 (16), 165302 (2019).
3. Size modulated Griffiths phase and spin dynamics in double perovskite Sm_{1. 5}Ca_{0. 5}CoMnO₆, R. C. Sahoo,Sananda Das, S. K. Giri,D. Paladhi, T. K. Nath, Journal of Magnetism and Magnetic Materials, 469, 161 (2019)
4. Giant Spontaneous Exchange Bias Effect in Sm_1.5Ca_0.5CoMnO₆Perovskite, S. K. Giri, R. C. Sahoo, PapriDasgupta, A. Poddar and T. K. Nath, Journal of Physics D: Applied Physics, 49, 165002 (2016).
5. Evidence of cluster-glass-like state at low temperature in anti-site disordered La_1.5Ca_0.5CoMnO₆ double perovskite, R. C. Sahoo, S. K. Giri, D. Paladhi, A. Das, and T. K. Nath, Journal ofApplied Physics, 120, 033906 (2016).
6. Exchange bias effect in ferromagnetic LaSrCoMnO₆ double perovskite: Consequence of spin glass-like ordering at low temperature, R. C. Sahoo, S. K. Giri, PapriDasgupta, A. Poddar and T. K. Nath, Journal of Alloys and Compounds, 658, 1003 (2016).

7. Effect of Erbium substitution on temperature and field dependence of thermally activated flux flow resistance in Bi-2212 superconductor, Paladhi, P. Mandal, R. C. Sahoo, S. K. Giri and T. K. Nath, Physica B: Condensed Matter, 502, 113 (2016).

1. Strain modulated large magnetocaloric effect in Sm_0.55Sr_0.45MnO₃ epitaxial films, S. K. Giri, PapriDasgupta, A. Poddar, R. C. Sahoo, D. Paladhi and T. K. Nath, Applied Physics Letters,106, 023507 (2015).
2. Tuning of normal and inverse magnetocaloric effect in Sm_0.35Pr_0.15Sr_0.5MnO₃ phase separated manganites, S. K. Giri, PapriDasgupta, A. Poddar and T. K. Nath, Journal of Alloys and Compounds, 631, 266 (2015).
3. Large Magnetocaloric Effect and Critical Behavior in Sm_0.09Ca_0.91MnO₃ Electron Doped Nanomanganite, S. K. Giri, PapriDasgupta, A. Poddar, and T. K. Nath, Europhysics Letters, 105, 47007 (2014).
4. Enhanced exchange bias effect in size modulated Sm_0.5Ca_0.5MnO₃ phase separated manganite, S. K. Giri, S. M.Yusuf, M. D. Mukadam and T. K. Nath, Journal of Applied Physics, 115 , 093906 (2014).

12. An investigation of low temperature electronic phase arrest in Sm₅₅Sr_0.45MnO₃ phase separated manganite, S. K. Giri and T. K. Nath, Journal of Applied Physics, 115 , 053902 (2014).
13. Emergence of Griffiths phase and glassy mixed phase in Sm₅Ca_0.5MnO₃nanomanganites, S. K. Giri, S. M. Yusuf, M. D. Mukadam, T. K. Nath, Journal of Alloys and Compounds, 591, 181 (2014).
14. Field induced ferromagnetic phase transition and large magnetocaloric effect in Sm₅₅Sr_0.45MnO₃ phase separated manganites, S. K. Giri, PapriDasgupta, A. Poddar, A.K. Nigam, T.K. Nath, Journal of Alloys and Compounds, 582, 609 (2014).
15. Invited Review Article: Exchange bias effect in nanostructured magnetic oxides, S. K. Giri and T. K. Nath, Journal of Nanoscience Nanotechnology, 14, 1209-1230 (2014).
16. Exchange bias effect concerned with tunneling magnetoresistance in Sm₃₅Pr_0.15Sr_0.5MnO₃ phase separated manganites, S. K. Giri, Proloy. T. Das, S. K. Hazra, T. K. Nath, IEEE Transactions on Magnetics, 50, 2000504 (2014).
17. Co-existence of Griffiths phase and ferromagnetic insulating state in electron doped nanomanganite, S. K. Giri, P. T. Das and T. K. Nath, Physica B: Condensed Matter, 448, 80 (2014).

1. Strain induced first order magnetic phase transition in epitaxial Sm_0.35Pr_0.15Sr_0.5MnO₃ thin film, S. K. Giri and T. K. Nath, Journal of Superconductivity and Novel Magnetism, 27, 1 (2014).

19. Field-induced magnetic phase transition in Pr³⁺ doped Sm₅Sr_0.5MnO₃manganites,S. K. Giri, and T. K. Nath Journal of Applied Physics, 113, 17D706 (2013).
20. Evidence of exchange bias effect and surface spin glass ordering in electron doped Sm₀₉Ca_0.91MnO₃nanomanganites, S. K. Giri, A. Poddar and T. K. Nath, Journal of Applied Physics, 112, 113903 (2012).
21. Evidence of glassy ferromagnetic phase and kinetic arrest of electronic phase in Sm₃₅Pr_0.15Sr_0.5MnO₃manganites, S. K. Giri and T. K. Nath, Journal of Magnetism and Magnetic Materials,324, 2277 (2012).
22. Sign reversal of junction magnetoresistance in p – La₇Ca_0.3MnO₃/SiO₂/n – Si heterostructure : A possibility in Spintronics Application, S. K. Giri and T. K. Nath, Journal of Nanoscience Nanotechnology, 12, 7822-7831 (2012).
23. Surface spin glass and exchange bias effect in Sm₅Ca_0.5MnO₃manganitesnano particles, S. K. Giri, A. Poddar and T. K. Nath, AIP Advances, 01, 032110 (2011).
24. Suppression of charge and antiferromagnetic ordering in La₅Ca_0.5MnO₃ nanoparticles, S. K. Giri and T. K. Nath, Journal of Nanoscience and Nanotechnology,11, 4806-4814 ( 2011).
25. Modification of transport and magnetic behavior in half doped charge ordered nanocrystalline manganite Sm₅Ca_0.5MnO_3, S. K. Giri and T. K. Nath,International Journal of Nanoscience, 10, 285-290 (2011).

Proceedings

1. Size-Induced Exchange Bias Effect and Griffiths Phase in Electron Doped Sm₀₉Ca_0.91MnO₃manganites, S. K. Giriand T. K. Nath, IOP Conference Series: Materials Science and Engineering, 73, 012148 (2015).
2. Electrical and Magneto-electronic Properties of p-La₇Ca_0.3MnO₃/ SrTiO₃/n-Si Heterostructure for Spintronics Application, J. Panda, S. K. Giri, and T. K. Nath, IOP Conference Series: Materials Science and Engineering, 73, 012134 (2015).
3. Fabrication of Low Cost and high precision Thermoelectric Power Setup in the Temperature Range of 77 – 300 K, S. K. Hazra, S. K. Giri and T. K. Nath, American Institute of Physics (AIP) Proceedings, 1665, 060013 (2015).
4. Sr doping effect on micro structural, transport and magnetic properties in Pr_1-xSr_xMnO₃ (0.2 ≤ x≤ 0.4) nanomanganite, Proloy T. Das, S. K. Giri, A. Taraphder, and T. K. Nath, American Institute of Physics (AIP) Proceedings 1665, 130053 (2015).
5. Magneto-electric properties of nano sized 0.5Zn₅Co_0.5Fe₂O₄-0.5BaTiO₃ composite ceramics, PatriTirupathi, S. K. Giri and K. Prabahar, PhysicaProceedia, 54, 145 (2014).
6. Enhanced Room Temperature Magnetoresistance In p-La₇Ca_0.3MnO₃/SrTiO₃/n-Si Heterostructure: A Possible Spintronics Application, S. K. Giri, J. Panda, S. K. Hazra, P. T. Das and T. K. Nath, American Institute of Physics (AIP) Proceedings, 1591, 1639 (2014).
7. Design and development of low cost thermoelectric power setup in the temperature range of 30 – 320 K up to a magnetic field of 8 T, K. Giri, S. K. Hazra, and T. K. Nath, American Institute of Physics (AIP) Proceedings, 1512, 456 (2013).
8. Evidence of spin glass like ordering and electronic phase arrest in Pr³⁺ doped Sm₅Sr_0.5MnO₃ bulk manganites, S. K. Giri and T. K. Nath, American Institute of Physics (AIP) Proceedings, 1447, 1221 (2012).
9. Surface spin glass ordering and exchange bias in nanometric Sm₀₉Ca_0.91MnO₃ Manganites, S. K. Giri and T. K. Nath, American Institute of Physics (AIP) Proceedings, 1349 (PART A) , pp. 361-362 (2011).
10. Effect of substitution of of La³⁺ by Gd³⁺ in the magneto- and electronic transport properties of La₇Ca_0.3MnO₃, S. K. Giri and T. K. Nath, Proceedings of DAE Solid State Physics Symposium, 53, 441(2008).

1. Disappearance of charge ordering and emergence of ferromagnetism in Nanoparticles of La₅Ca_0.5MnO₃, S. K. Giri and T. K. Nath, Proceedings on Magnetic Nanomaterials and their Applications (MNTA-2009), page no. 29 (2009), S. N. Bose Center for Basic sciences, Kolkata.
2. Modification of Transport and Magnetic Behavior in Half-doped Charge Ordered Nanocrystalline Manganite Sm₅Ca_0.5MnO₃,S. K. Giri and T. K. Nath, Proceedings on International Conference on Advanced Nanomaterials and Nanotechnology (ICANN-2009),Indian Institute of Technology Guwahati,page 384, Center for Nanotechnology, IITG(2009).
3. Large Low Field Magnetoresistance in La_7-xGd_xSr_0.3MnO₃ (0 < x < 0.3) bulk and nanometric CMR manganites, S. K. Giri and T. K. Nath, Proceedings on 20th Annual General Meeting, Materials Research Society of India,Saha Institute of Nuclear Physics, Kolkata,page no. 139, Material Research Society of India(2009).
4. Linear and non linear ac magnetic susceptibility measurements in Sm₃₅Pr_0.15Sr_0.5MnO₃manganites, S. K. Giri, S. Kundu and T. K. Nath, National Conference on Magnetic Materials & Applications (MagMA-2011) abstract & proceedings, S. N. Bose National Center For Basic Sciences, Kolkata, page 109, Magnetic Society of India (2011).
5. Investigations on La₇Ca_0.7MnO₃/SiO₂/n-Si and La_0.7Sr_0.3MnO₃/SiO₂/p-Si MOS like heterostructure for Spintronics, S. Chattopadhyay, S. K. Giri and T. K. Nath, International Conference on Fundamental and Applications of Nanoscience& Technology (ICFANT 2010) abstract & proceedings, Jadavpur University, School of Material Science & Nanotechnology, Kolkata, 9 – 11 December, 2010, page no. 116 (2010).
6. Investigation on La₇Ca_0.3MnO₃/SiO₂/n-Si and La_0.7Sr_0.3MnO_3/SiO₂/p-Si MOS like heterostructures for Spintronics, T. K. Nath, S. K. Giri and S. Chattopadhyay, Proceedings on International Conference on Materials for Advanced Technologies (ICMAT-2011), Singapore, NUS, MRS Singapore conference, 26 June – 1^st July, 2011, page no. 83 (2011).
7. A complex ac magnetic susceptibility study in Sm₃₅Pr_0.15Sr_0.5MnO₃ bulk manganites, S. K. Giri and T. K. Nath, International Conference on Theoretical and Applied Physics (ICTAP) (2012), IIT Kharagpur.
8. Surface Spin Glass Ordering and Exchange Bias in Nanometric Sm₀₉Ca_0.91MnO₃Manganites, S. K. Giri and T. K. Nath, DAE Solid State Physics Symposium, (2011).
9. Size-Induced Exchange Bias Effect and Griffiths Phase in Electron Doped Sm₀₉Ca_0.91MnO₃manganites, S. K. Giriand T. K. Nath, ICMST (2012), Kerala.
10. Enhanced Room Temperature Magnetoresistance In p-La₇Ca_0.3MnO₃/ SrTiO₃/n-Si Heterostructure: A Possible Spintronics Application, S. K. Giri, J. Panda, S. K. Hazra, P. T. Das and T. K. Nath, DAE Solid State Physics Symposium, Thapar University, Patiala, India (2013),
11. Evidence of spin glass like ordering and electronic phase arrest in Pr³⁺ doped Sm₅Sr_0.5MnO₃ bulk manganites, S. K. Giri and T. K. Nath, DAE Solid State Physics Symposium, (2012). (ORAL Presentation)
12. Field-induced magnetic phase transition in Pr³⁺ doped Sm₅Sr_0.5MnO₃manganites,S. K. Giri, and T. K. Nath, MMM/Intermag Conference (2013), Chicago, IL, USA. (ORAL Presentation).
13. Strain induced first order magnetic phase transition in epitaxial Sm₃₅Pr_0.15Sr_0.5MnO₃ thin film, S. K. Giri and T. K. Nath, 4^th International Conference on Superconductivity and Magnetism- ICSM2014, Antalya (2014).
14. Magnetic and Optical Properties of Phase separated Manganites, S. K. Giri and T. K. Nath, PAOMP 2014, Bhubaneswar, India.

1. Evidence of Surface Spin Glass Like Ordering and Exchange Bias Effect in Phase Separated Sm_0.5Ca_0.5MnO₃Nanomanganites, S. K. Giri, T. K. Nath, Volume 143 2013, Advanced Nanomaterials and Nanotechnology, Editors: P. K. Giri, D. K. Goswami, A. Perumal ISBN: 978-3-642-34215-8 (Print) 978-3-642-34216-5 (Online).

2. Emergence of Ferromagnetism in Nanoparticles of Antiferromagnetic Sm₅Ca_0.5MnO₃ and Nd_0.4Sr_0.6MnO₃, S. Kundu, S. K. Giri and T. K. Nath, Synthesis and Characterization of Nanostructured Materials, Macmillan Publishers, page no. 323- 328 (2010), ISBN: 023-033-193-9.

• Member Seminar and Project Sub-Committee of Kharagpur College
• Member Teaching and Learning Sub-Committee of Kharagpur College

Awards:

1. SERB Overseas Postdoctoral Fellowship Award (2017)
2. DST travel grant award to attend 12^th Joint MMM/Intermag Conference in Chicago, IL, USA.
3. Student travel grant award by AIP Publishing, LLC and The IEEE Magnetics Society for 12^th Joint MMM/Intermag Conference in Chicago, IL, USA.
4. IIT Kharagpur travel grant award to attend 4^th International Conference on Superconductivity and Magnetism- ICSM2014, Antalya, Turkey.

1. Journal of Applied Physics
2. Journal of Alloys and compounds
3. Journal of Magnetism and Magnetic Materials
4. International Journal on Communications