Project Assistant Professor,
Department of Advanced Materials Science,
Graduate School of Frontier Sciences,
The University of Tokyo
5-1-5 Kashiwanoha, Kashiwa, Chiba 277-8561, JAPAN
E-mail: r.modak_at_edu.k.u-tokyo.ac.jp ( _at_ = @ )
Dr. Rajkumar Modak is an experimental physicist with expertise in materials science and applied physics. His research interests span various domains within materials science, including magnetism, spintronics, spin caloritronics, magnetocalorics, and thermoelectrics. Dr. Modak employs interdisciplinary methodologies and cutting-edge techniques, such as combinatorial film deposition, intermetallic bulk nanocomposite preparation, and lock-in thermography, to innovate novel materials with multifunctional capabilities. These novel materials hold significant potential for applications in energy harvesting, wearable technology, ultra-low-power electronics, thermoelectric devices, sensors, and magnetic cooling technology. Dr. Modak possesses a strong track record of developing and utilizing high-throughput screening for accelerated material optimization and have a successful history of designing materials with diverse functionalities.
He currently serves as a Project Assistant Professor at the Graduate School of Frontier Sciences, The University of Tokyo, Japan, a position he has held since September 2024. Prior to his current role, he held positions as a Special Researcher (2023-2024), JSPS Postdoctoral Fellow (2021-2023), and Postdoctoral Researcher (2019-2021) at the Research Center for Magnetic and Spintronic Materials, National Institute for Materials Science. Dr. Modak earned his Ph.D. in Physics from the Indian Institute of Technology Guwahati in 2019 and his M.Sc. in Physics from the Indian Institute of Technology Delhi in 2013. Recognized for his academic achievements, he is the recipient of the prestigious INSPIRE Scholarship, INSPIRE Fellowship (Note: not availed), and JSPS Fellowship.
Nov 2024
The paper entitled “Combinatorial sputtering synthesis of TbCu 7 -type Sm-Fe based compounds: a study on phase, composition, and extrinsic magnetic properties“ has been published in Journal of Alloys and Compounds 1010, 177723 (2025). Authors: A. R. Dilipan, Hossein Sepehri-Amin, Rajkumar Modak, Varun Kumar Kushwaha, Yuya Sakuraba, Ken-ichi Uchida, Kazuhiro Hono, and Yukiko Takahashi
Nov 2024
The paper “Single-material-based anomalous Nernst thermopile driven by solar heating and radiative cooling, Applied Physics Express 15, 093001 (2022)“ has been selected for 46th JSPS Paper Award (Excellent Paper Award). Authors: Naoki Chiba, Satoshi ISHII, Rajkumar Modak, and Ken-ichi Uchida
Sep 2024
Dr. Rajkumar Modak has delivered an "Indian Knowledge System Talk on Smart Materials and Its Applications" at the Department of Physics, Faculty of Science and Technology, The ICFAI University, Tripura
Sep 2024
Dr. Rajkumar Modak has joined to the Department of Materials Science, Graduate School of Frontier Sciences, The University of Tokyo, as Project Assistant Professor.
May 2024
The paper entitled “High-Throughput Optimization of Magnetoresistance Materials Based on Lock-In Thermography“ has been published in Advanced Physics Research 3, 2400021 (2024). Authors: Rajkumar Modak, Takamasa Hirai, Yuya Sakuraba, Seiji Mitani, Koichi Oyanagi, Takumi Yamazaki, Takeshi Seki, and Ken-ichi Uchida