The discovery of 2D materials have opened up many ways for applications, one of which is spintronics. The most prominent observations include observation of quantum hall effect, enhanced spin lifetime and spin diffusion length which are of huge importance for spin-based communication. In the non-magnetic magnetic materials, magnetism could be introduced by a variety of external influences. The recent discovery of intrisic magnetism in a family of 2D materials (a violation of ground state predicted by Mermin-Wagner Theorem) have opened up new pathways which are of tremendous interest.

In the work below, we have showed a method of tuning the magnetic property and electronic phases in 2D magnets using a combination of strain and electric field. We observed colossal enhancement of the critical temperature (about 6 times in Cr2Ge2Te6) in these materials.

Related Publications:

• A. Nair, S. J. Ray* – Electronic phase-crossover and room temperature ferromagnetism in a two-dimensional (2D) spin lattice, RSC Advances, 11(2), 946-952 (2021)

• S. Kar, A. Nair, S. J. Ray* – Supreme enhancement of ferromagnetism in a spontaneous symmetry broken 2D nanomagnet, Journal of Physics D: Applied Physics, 54 (10), 105001 (2020)

• S. Rani, A. Nair, M. V. Kamalakar, S.J. Ray*- Spin-selective response tunability in two-dimensional nanomagnets, Journal of Physics: Condensed Matter,32, 415301 (2020)

• A. Nair, S. Rani, M. V. Kamalakar, S.J. Ray*- Bi-stimuli assisted engineering and control of magnetic phase in monolayer CrOCl, Physical Chemistry Chemical Physics, 22, 12806-12813 (2020)

• Jean-Francois Dayen, S. J. Ray, Olof Karis, Ivan Vera-Marun, and M. Venkata Kamalakar - Two-dimensional and Van der Waals spinterfaces, Applied Physics Reviews, 7 (1),011303 (2020)