Research
Prediction of a magnetic topolo-gical phase in a non centro-symmetric system:
The entanglement between magnetism and topology can lead to exotic phases, such as, quantum anomalous Hall effect, topological magneto-electric effect, topological superconductors and topological axion insulators. The study of van der Waals system MnBi2Te4 and its family of materials has helped to achieve tremendous success in this direction. We predict magnetic topological phase in non centro-symmetric MnX2Te4.
Strain induced topological charge control in multifold fermion systems:
The family of transition metal silicides (MSi, M= Rh, Co) is one of the most widely studied material candidates to host multifold topological fermions. The members of this family host different types of unconventional fermions. Unlike conventional fermions, these multifold fermions have no high energy counterpart, rather the degeneracies are protected only by various crystal symmetries. External perturbation can control the distribution the topological charges.
Electronic Structure Studies of FeSi: A Chiral Topological System:
Experimental collaboration with Dr. Thirupathaiah Setti, SNBNCBS
We provided theoretical support in the study of low energy electronic structure of FeSi, giving more insight into the observed ARPES data. The key finding is that FeSi does not show topological surface Fermi arcs near the Fermi level as surface state calculations predicted them well above the Fermi level.