मालवीय राष्ट्रीय प्रौद्योगिकी संस्थान जयपुर (राष्ट्रीय महत्व का संस्थान)
Malaviya National Institute of Technology Jaipur (An Institute of National Importance)
Department of Metallurgical and Materials Engineering
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18

Journal Publications

Qualifications
  • Ph.D.(Metallurgical and Materials Engineering) from IIT Madras(2021)
    B .Tech.(Metallurgical and Materials Engineering) from NIT Tiruchirappalli(2012)
Research Interests

Physical Metallurgy and Alloy Design, Soft and Hard Magnetic Materials, Spin Caloritronics and Functional Magnetic Materials, Amorphous, Nanocrystalline, and Metastable Materials, Alloy Processing and Metastable Materials Engineering, Rapid Solidification and Powder Processing, StructureProcessingProperty Correlation, Magnetic Domain and Nanostructure Engineering, Electron Microscopy and Atom Probe Tomography, Materials for Automotive and Power Electronics Applications, Materials-to-Device Prototyping.

Professional Background
  • Assistant Professor at Malaviya National Institute of Technology Jaipur [13 April 2026 - Present].
    Scientist at International Advanced Research Centre for Powder Metallurgy and New Materials (ARCI) [18 June 2013 - 31 March 2022].
    Junior Research Fellow at Defence Metallurgical Research Laboratory (DMRL), Defence Research and Development Organization (DRDO) [13 August 2012 - 17 June 2026].

    2026
  • Sang J Park, Ravi Gautam, Abdulkareem Alasli, Takamasa Hirai, Fuyuki Ando, Hosei Nagano, Hossein Sepehri-Amin, Ken-ichi Uchida, "High-throughput development of flexible amorphous materials showing large anomalous Nernst effect via automatic annealing and thermoelectric imaging" , Materials Today (Elsevier) Volume :92 / 416 - 424 / 2026 DOI: 10.1016/j.mattod.2025.12.027
  • Jayachandran Babu, Ravi Gautam, Hossein Sepehri-Amin, Takao Mori, Titas Dasgupta, Duraisamy Sivaprahasam, "Role of Grain Boundary Features in the Thermal Stability of LASTT-10 Thermoelectric Materials" , Applied Materials & Interfaces (American Chemical Society) Volume :xx / / 2026 DOI: https://doi.org/10.1021/acsami.6c08078
  • SJ Park, R Gautam, T Yagi, R Modak, H Sepehri-Amin, K Uchida, "Structural heterogeneity-induced enhancement of transverse magneto-thermoelectric conversion revealed by thermoelectric imaging in functionally graded materials" , Science and Technology of Advanced Materials (Taylor & Francis) Volume :27 / 2643965 / 2026 DOI: 10.1080/14686996.2026.2643965
    • 2025
  • Sang J Park, Rajkumar Modak, Ravi Gautam, Abdulkareem Alasli, Takamasa Hirai, Fuyuki Ando, Hosei Nagano, Hossein Sepehri-Amin, Ken-ichi Uchida, "Designing flexible magnetic materials for zero-magnetic-field operation of the anomalous Nernst effect" , Acta Materialia (Elsevier) Volume :301 / 121422 / 2025 DOI: https://doi.org/10.1016/j.actamat.2025.121422
  • Ravi Gautam, Shozo Hiramoto, Nikita Kulesh, Hiroaki Mamiya, Satoshi Okamoto, Nobuhisa Ono, Takeshi Ogasawara, Tadakatsu Ohkubo, Hossein Sepehri-Amin, "Ultra-low core loss in Fe-enriched soft magnetic ribbons enabled by nanostructure and high-frequency domain engineering" , Nature Communications (Nature Publishing Group UK) Volume :16 / 8022 / 2025 DOI: 10.1038/s41467-025-63139-1
    • 2024
  • Ravi Gautam, Takamasa Hirai, Abdulkareem Alasli, Hosei Nagano, Tadakatsu Ohkubo, Ken-ichi Uchida, Hossein Sepehri-Amin, "Creation of flexible spin-caloritronic material with giant transverse thermoelectric conversion by nanostructure engineering" , Nature Communications (Nature Publishing Group UK) Volume :15 / 2184 / 2024 DOI: 10.1038/s41467-024-46475-6
    • 2023
  • Himadri Nandan Mohanty, AK Jena, Saroj Kumar Mishra, Ravi Gautam, D Prabhu, Satyaprakash Sahoo, J Mohanty, "Digital and analog resistive switching in Lu-doped piezoelectric BiFeO3 film" , Materials Science and Engineering: B (Elsevier) Volume :294 / 116535 / 2023 DOI: 10.1016/j.mseb.2023.116535
  • G Vijayaragavan, D Prabhu, MB Ponnuchamy, KRS Preethi Meher, Ravi Gautam, Mainak Saha, R Gopalan, KG Pradeep, "Microstructure evolution and phase analysis of Sm60Ni40 alloy" , Journal of Magnetism and Magnetic Materials (Elsevier) Volume :566 / 170323 / 2023 DOI: 10.1016/j.jmmm.2022.170323
  • Hiroaki Mamiya, Yojiro Oba, Kosuke Hiroi, Takayuki Miyatake, Ravi Gautam, Hossein Sepehri-Amin, Tadakatsu Ohkubo, "Magnetic structural analysis of nanocrystalline soft magnets by small-angle neutron scattering" , IEEE Magnetics Letters (IEEE) Volume :14 / 1-5 / 2023 DOI: 10.1109/LMAG.2023.3242108
    • 2022
  • Sumit Ranjan Sahu, M Jagannatham, Ravi Gautam, Vallabha Rao Rikka, Raju Prakash, KJ Mallikarjunaiah, G Srinivas Reddy, "A facile synthesis of raspberry-shaped Fe3O4 nanoaggregate and its magnetic and lithium-ion storage properties" , Materials Science and Engineering: B (Elsevier) Volume :282 / 115771 / 2022 DOI: 10.1016/j.mseb.2022.115771
    • 2021
  • Sonia Sharma, Meghna Narayanan, Ravi Gautam, Raghavan Gopalan, P Swaminathan, "Effect of processing route on the structural and functional properties of manganese doped zinc oxide" , Materials Chemistry and Physics (Elsevier) Volume :261 / 124206 / 2021 DOI: 10.1016/j.matchemphys.2020.124206
  • VV Ramakrishna, S Kavita, T Ramesh, Ravi Gautam, R Gopalan, "On the Structural and Magnetic Properties of Mn-Bi Alloy Jet Milled at Different Feed Rates" , Journal of Superconductivity and Novel Magnetism (Springer ) Volume :34 / 733-737 / 2021 DOI: 10.1007/s10948-020-05749-y
  • A Rebekah, S Sivaselvam, C Viswanathan, D Prabhu, Ravi Gautam, N Ponpandian, "Magnetic nanoparticle-decorated graphene oxide-chitosan composite as an efficient nanocarrier for protein delivery" , Colloids and Surfaces A: Physicochemical and Engineering Aspects (Elsevier) Volume :610 / 125913 / 2021 DOI: 10.1016/j.colsurfa.2020.125913
    • 2020
  • Ravi Gautam, Roja Rani, D Prabhu, V Chandrasekaran, Taisuke Sasaki, K Hono, G Sundararajan, R Gopalan, "Effect of recovery and recrystallization on microstructure and magnetic properties of Fe-0.4 P rolled sheets" , Materialia (Elsevier) Volume :13 / 100863 / 2020 DOI: 10.1016/j.mtla.2020.100863
  • Ravi Gautam, Delhi Babu Prabhu, V Chandrasekaran, R Gopalan, G Sundararajan, "Influence of nanoprecipitates, solid solution and grain size on the magnetic and electrical properties of Fe-P-Si alloys" , Journal of Magnetism and Magnetic Materials (Elsevier) Volume :493 / 165743 / 2020 DOI: 10.1016/j.jmmm.2019.165743
    • 2019
  • AR Dilipan, AK Srinithi, Ravi Gautam, U Gowtham, D Prabhu, V Chandrasekaran, R Gopalan, "8689049" , IEEE Transactions on Magnetics (IEEE) Volume :55 / 1-5 / 2019 DOI: 10.1109/TMAG.2019.2900204
    • 2018
  • VV Ramakrishna, S Kavita, Ravi Gautam, T Ramesh, R Gopalan, "Investigation of structural and magnetic properties of Al and Cu doped MnBi alloy" , Journal of Magnetism and Magnetic Materials (Elsevier) Volume :458 / 23 - 29 / 2018 DOI: 10.1016/j.jmmm.2018.02.076
    • 2016
  • Ravi Gautam, D Prabhu, V Chandrasekaran, R Gopalan, G Sundararajan, "Effect of Si addition on AC and DC magnetic properties of (Fe-P)-Si alloy" , AIP Advances (AIP Publishing) Volume :6 / 055921 / 2016 DOI: 10.1063/1.4944074

  • National level Workshop on Emerging Trends in Green Energy Technology at MNIT, Jaipur, India from 14-07-2026 to 14-07-2026

  • International level Conference on International Conference on Magnetic Materials and Applications (ICMAGMA)-2026 at NIT Goa, Goa, India from 03-06-2026 to 05-06-2026

  • Life Member of Electron Microscope Society of India
  • Life Member of Indian Institute of Metals
  • Life Menber of Magnetics Society of India (MSI)

  • "Soft Magnetic Ribbon Material for High Frequencies", Ravi Gautam, Tadakatsu Ohkubo, Yukiko Takahashi, Amin Hossein Sepehri, Shozo Hiramoto, Satoshi Okamoto, Eikichi Yoshida , Reg.No. 20240147 [Japanese Patent] Filed Dt.26-11-2024
  • "A METHOD OF PRODUCING STRONTIUM HEXAFERRITE POWDERS HAVING HIGH COERCIVITY SUITABLE FOR BONDED MAGNETS", D. Prabhu, M. Pavana, Ravi Gautam, AR. Dilipan, R. Vijay, V. Chandrasekaran, R. Gopalan, Azhagu Devathai Dhanapal , Reg.No. 480912 [Patent Office, India] Awarded Dt.13-06-2024
  • "Alloy", S. Hiramoto, T. Miyatake, Ravi Gautam, Amin Hossein Sepehri, T. Okubo , Reg.No. WO2024122412A1 [World Intellectual Property Organization (WIPO PCT)] Published Dt.13-06-2024

SNo. Type Title Event Place Schedule
1TalkMAGNETO-STRUCTURAL ENGINEERING OF Fe-BASED SOFT MAGNETIC RIBBONS FOR GREEN POWER TECHNOLOGIES International Conference on Magnetic Materials and Applications (ICMAGMA)NIT Goa, IndiaJun-2026
2ChairInternational Conference on Magnetic Materials and Applications (ICMAGMA)-2026, NIT GoaConferenceGoaJun-2026