Dr. Hena Das is a specially appointed Associate Professor at the WRHI and Laboratory for Materials and Structures in the Tokyo Institute of Technology. Having earned her Ph.D. from the University of Calcutta, she has held positions of Research Associate in the Cornell University, the Massachusetts Institute of Technology (MIT) and the University of California, Berkley, USA. A theoretical condensed matter physicist by training, her research interests and activities are focused on ab initio theoretical study of various properties of materials at the level of atoms and electrons. DAS group aims to develop quantitative guidelines to tailor properties of materials in order to design novel materials/phenomena.
Given the interdisciplinary nature of my research work, I am looking forward to working in collaboration with eminent faculties of diverse academic backgrounds at Tokyo Tech. From WHRI, I also expect to get a great international and interdisciplinary exposure in order to strengthen my academic network and build partnerships with fellow scientists working on related areas all over the world.
We predicted several new structural phases of LixNix′O2 system within a fixed FCC anion lattice which form during battery charge-discharge process [Chem. Mater. 29, 7840 (2017)] and have a significant bearing upon the performance of Li-ion cathode materials.
We designed new hexagonal transition metal oxide superlattices where ferroelectricity and ferromagnetism coexist near room temperature [Nature 537, 523 (2016) ].
We predicted topologically protected magnetoelectric vortex domain structures in YMnO3-type geometric ferroelectrics, which has been realized in EnMnO3 under magnetic field [Nature Communications 5, 2998 (2014), Nature Materials 13, 163-167 (2014) ].
|2011 – 2015|| |
Post-doctorate research associate, School of Applied and Engineering Physics, Cornell University
|2015 – 2017|| |
Associate Specialist, Department of Materials Science and Engineering, University of California, Berkeley
|2017 – 2018|| |
Research Associate, School of Applied and Engineering Physics, Cornell University
|2018 –|| |
Specially Appointed Associate Professor, Tokyo Institute of Technology
Hena Das, U. V Waghmare, T. Saha-Dasgupta and D. D. Sarma, Electronic structure, phonons and dielectric anomaly in ferromagnetic insulating double perovskite La2NiMnO6, Phys. Rev. Lett. 100, 186402 (2008)
Hena Das, G. Sangiovanni, A. Valli, K. Held and T. Saha-Dasgupta, Size control of charge-orbital order in half-doped manganites, Phys. Rev. Lett. 107, 197202 (2011)
Yanan Geng, Hena Das, Aleksander L. Wysocki, N. Lee, Y.J. Choi, S-W. Cheong, M. Mostovoy, Craig J. Fennie, and Weida Wu, Direct visualization of magnetoelectric domains, Nature Materials 13, 163-167 (2014)
Julia A. Mundy,…..,Hena Das et. al., Atomically engineered ferroic layers yield a room- temperature magnetoelectric multiferroic, Nature 537, 523527 (2016)
Hena Das, Alexander Urban, Wenxuan Huang and Gerbrand Ceder, First-principles simulation of the (Li-Ni-Vacancy)O phase diagram and its relevance for the surface phases in Ni-rich Li-ion cathode materials, Chem. Mater. 29, 7840-7851 (2017)