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Biography

Personal Profile: Dr. L. Saravanan has been a Project Scientist at ARCI, Hyderabad, since January 2026. He is an experimental physicist specialising in magnetic materials (ferrites and thin films), with a focus on both fundamental research and applied energy solutions. He has established good national and international research collaborations. 


Educational Qualifications: Dr. L. Saravanan completed his PhD in Physics at SRM Institute of Science and Technology (SRM IST) in Kattankulathur, Chennai, from 2014 to 2019. He then received a National Postdoctoral Fellowship (NPDF) at IIT Delhi's Department of Physics (2019–2022). Following that, he held a FONDECYT postdoctoral position at the Universidad Técnica Federico Santa María (UTFSM) in Valparaíso, Chile (South America), from 2022 to 2025, during which he accumulated extensive international research experience.


Research Experience:  He has extensive experience in the preparation and characterisation of magnetic materials in bulk, powder, and thin-film forms. His work includes rare-earth (RE)-based and RE-free permanent magnets for electric vehicles (EVs), energy storage, and sustainable technologies. He has also contributed to research on spintronic materials for MRAM, HDD, and high-frequency devices. His expertise spans thin-film deposition, interfacial engineering, and tuning magnetic anisotropy to enhance performance. Currently, he focuses on developing advanced magnetic materials to maximise BHmax in magnets for EVs, wind energy systems, and related applications. 


Technology Translation and Applications: His research emphasises translating laboratory findings into practical technologies. He focuses on scalable materials development and performance optimisation, aiming to reduce reliance on critical rare-earth elements while enabling efficient, cost-effective solutions for industrial applications.

Research Areas of Interest

✓Developing Rare-Earth (RE) and RE-free magnetic materials for Electric Vehicles (EV), Energy storage devices, Magnetic Sensors, Biomedical (magnetic drug transfer and MRI), high-frequency devices, and Stealth applications
✓Designed spintronic (magnetic memory) devices using STT/SOT/Magnetic Skyrmion mechanisms for data storage applications
✓Worked on surface/interface analysis of multilayer thin films
✓Synthesis and characterization, and making of permanent magnets 

Highest Qualification

Ph.D in Physics

Other Qualifications

1. Fondecyt postdoctoral Fellow 2. National postdoctoral Fellow 3. CSIR-Senior Research Fellow

List of Publications

  1. L. Saravanan, Nanhe Kumar Gupta, Carlos Garcia, Sujeet Chaudhary, “Tailoring magnetic properties of CoFeB films via tungsten buffer and capping layers”, J. Magn. Magn. Mater. 614 (2025) 172701.
  2. L. Saravanan, Nanhe Kumar Gupta, Manivel Raja, Carlos Garcia, “Effects of interfacial oxygen diffusion on the magnetic properties and thermal stability of Pd/CoFeB/Pd/Ta heterostructure”, Journal of Alloys and Compounds, 1007 (2024) 176382. 
  3. L. Saravanan, Nanhe Kumar Gupta, Vireshwar Mishra, Carlos Garcia and Sujeet Chaudhary, “Impact of annealing on perpendicular magnetic anisotropy in W/MgAl2O4/CoFeMnSi/W/CoFeMnSi/MgAl2O4/W double storage layers for upcoming MTJs” J. Magn. Magn. Mater. 603 (2024) 172225. 
  4. L. Saravanan, Vireshwar Mishra, Lalit Pandey, Nanhe Kumar Gupta, Nakul Kumar, Nikita Sharma, H.A. Therese, Sujeet Chaudhary, “Enhancement of perpendicular magnetic anisotropy in MgAl2O4/CoFeMnSi/MgAl2O4/W multilayer films”, J. Magn. Magn. Mater. 563 (2022) 169926. 
  5. L. Saravanan, Vireshwar Mishra, Lalit Pandey, Nanhe Kumar Gupta, Nakul Kumar, R. Gopalan, D. Prabhu, H. A. Therese, Sujeet Chaudhary, “Investigation of Perpendicular Magnetic Anisotropy in CoFeMnSi based Heterostructures”, J. Magn. Magn. Mater. 561 (2022) 169693. 
  6. L. Saravanan, Sujeet Chaudhary, I. Phebe Kokila, H.A. Therese, “Observation of Uniaxial magnetic anisotropy and Perpendicular coercivity in W/CoFeB/W structures”, Journal of Alloys and Compounds, 895 (2021) 162600. 
  7. L. Saravanan, Sujeet Chaudhary, I. Phebe Kokila, H.A. Therese, M. Manivel Raja “Influence of Magnetic Layer Thickness on Magnetic, Microstructural and Electrical Properties of CoFeB sandwiched in Ta Layers”, AIP Conf. Proc. 2369 (2021) 020194. 
  8. L. Saravanan, I. Phebe Kokila, M. Manivel Raja, D. Prabhu, H.A. Therese, “Effect of annealing temperature on perpendicular magnetic anisotropy and small saturation magnetization of MgO/Co2FeAl/Mo trilayer”, J. Supercond. novel magn., 32 (2019) 1967–1972. 
  9. L. Saravanan, M. Manivel Raja, D. Prabhu, H.A. Therese, “Robust perpendicular magnetic anisotropy in MgO/Co2FeAl/MgO stacks induced by MgO over layer and annealing temperature”, Phys. Status Solidi A, 215 (2018) 1800316–1800316. 
  10. L. Saravanan, M. Manivel Raja, D. Prabhu, V. Pandiyarasan, H. Ikeda and H.A. Therese, “Impact of MgO layer on perpendicular magnetic anisotropy in Mo/Co2FeAl/MgO/Mo multilayers with improved annealing stability”, Mater Res Bull. 107 (2018) 118–124. 
  11. L. Saravanan, M. Manivel Raja, D. Prabhu, V. Pandiyarasan, H. Ikeda, and H. A. Therese, “Perpendicular magnetic anisotropy in Mo/Co2FeAl0.5Si0.5/MgO/Mo multilayers with optimal Mo buffer layer thickness”, J. Magn. Magn. Mater. 454 (2018) 267–273. 
  12. L. Saravanan, M. Manivel Raja, D. Prabhu, H. A. Therese, “Influence of sputtering power on structural and magnetic properties of as-deposited, annealed and ERTA Co2FeSi films: A comparative study”, Phys B.Condens. Matter. 531 (2018) 180–184. 
  13. L. Saravanan, M. Manivel Raja, D. Prabhu, H. A. Therese, “Effect of thickness on tuning the perpendicular coercivity of Ta/CoFeB/Ta trilayer”, J Mater Sci: Mater Electron, 29 (2018) 336–342. 
  14. L. Saravanan, Subha Krishna Rao, Manivel Raja Muthuvel, Gopalakrishnan Chandrasekaran, Helen Annal Therese, “Variable substrate temperature deposition of CoFeB film on Ta for manipulating the perpendicular coercive forces”, J. Magn. Magn. Mater. 435 (2017) 81–86. 
  15. Meher Abhinav E, D. Jaison, P Baskaran, N. Pavan Kumar, Subha Krishna Rao, J. Shanker, L. Saravanan and C. Gopalakrishnan, “Enhanced Cryogenic Magnetocaloric Performance in Te Doped Dy2O3”, ECS J. Solid State Sci. Technol. 11 (2022) 083010.
  16. Nanhe Kumar Gupta, Sajid Husain, Vineet Barwal, Soumyarup Hait, Lalit Pandey, Vireshwar Mishra, L Saravanan, Amar Kumar, Nikita Sharma, Nakul Kumar, Sanjay Kumar Kedia, Sujeet Chaudhary, “Critical role of post-annealing in Ta/Co60Fe20B20/Ta thin film heterostructures: Structural, static, and dynamic properties”, J. Magn. Magn. Mater. 562 (2022) 169799.
  17. Lalit Pandey, Sajid Husain, Xin Chen, Vineet Barwal, Soumyarup Hait, Nanhe Kumar Gupta, Vireshwar Mishra, Amar Kumar, Nikita Sharma, Nakul Kumar, L. Saravanan, Dinesh Dixit, Biplab Sanyal, and Sujeet Chaudhary, “Weak antilocalization and electron-electron interactions in topological insulator BixTey films deposited by sputtering on Si (100)”, Phys. Rev. Materials. 6 (2022) 044203.

  18. Nanhe Kumar Gupta, Vineet Barwal, Soumyarup Hait, Lalit Pandey, Vireshwar Mishra, L. Saravanan, Amar Kumar, Nikita Sharma, Nakul Kumar, Sajid Husain and Sujeet Chaudhary, “Impact of Argon working pressure on the magnetic properties of sputtered Co60Fe20B20 thin films”, Thin Solid Films, 756 (2022) 139355.

     

Books / Book Chapters

  1. BOOK CHAPTER: L. Saravanan and Carlos Garcia, “Advancements in 2-D Heterostructure Materials for Next-generation Spintronic Devices” Taylor & Francis Group, LLC. ISBN-9781003531586 (2025)
  2. BOOK: L. Saravanan, “Magnetic Anisotropy for New Generation Spintronic Devices - Perpendicular Coercivity and Anisotropy Properties”, LAP LAMBERT Academic Publishing, ISBN No. 978-620-6-18315-0, (2023) 

Conference Proceedings

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Patents

  1. Utility Patent - “Grid Connected Hybrid PV-Battery-Wind Supplied Induction Motor Drive with Direct Torque Control of a 5L-NPC Inverter”, Mr. Aakarshan Pratik Chaurishi, Dr. Navin Sam D, Mr. Shubham Tiwary, Dr. Manohara H T, Dr.Veeresha Kallaganguru Basavarajappa, Mrs. Priyadharsini S, Dr. Mansour Hawsawi, Dr. Saravanan Lakshmanan, Mr. Kandi Bhanu Prakash, Indian patent, Filing No: TEMP/E-1/34210/2026-CHE, date: 15/03/2026. 

Major Projects / Technologies Developed

✓Fondecyt Post Doc. – Giant tunneling magnetoresistance and robust perpendicular magnetic anisotropy of magnetic tunnel junctions for future generation spintronic devices
✓National Post Doc. – Large magnetoresistance with perpendicular anisotropy of MTJs for thermally stable and ultra-low power consuming next-generation spintronic devices

Awards & Honours

  1. Fondecyt Post-Doctoral fellowship (South America-Chile)
  2. National Post-Doctoral fellowship (New Delhi)
  3. CSIR- Research Associate (New Delhi) – selected
  4. CSIR- Senior Research Fellowship (New Delhi)
  5. Research Project Assistant (DRDO, Hyderabad)
  6. Best Research and oral presentation (NCPCM- 2020, Indore)
  7. College Merit Holder (B.Sc)

 

Affiliation to Professional Societies

Dr. L. Saravanan actively engages with the global research community in the fields of magnetism (RE and RE-free), spintronics and materials science through collaborations, conferences, and academic networking. He is affiliated with leading professional bodies and research societies through conference participation and research interactions.