10 papers
Probing mirror anomaly and classes of Dirac semimetals with circular dichroism
Abhirup Roy Karmakar, S. Nandy, G. P. Das +1
We theoretically investigate the optical activity of three dimensional Dirac semimetals (DSMs) using circular dichroism (CD). We show that DSMs in the presence of a magnetic field…
Chiral magnetic effect of hot electrons
S. Nandy, D. A. Pesin
We propose a way to observe the chiral magnetic effect in non-centrosymmetric Weyl semimetals under the action of strong electric field, via the non-linear part of their I-V charac…
Fundamental relations for anomalous thermoelectric transport coefficients in the non-linear regime
Chuanchang Zeng, Snehasish Nandy, Sumanta Tewari
In a series of recent papers anomalous Hall and Nernst effects have been theoretically discussed in the non-linear regime and have seen some early success in experiments. In this p…
Dynamic chiral magnetic effect and anisotropic natural optical activity of tilted Weyl semimetals
Urmimala Dey, S. Nandy, A. Taraphder
We study the dynamic chiral magnetic conductivity (DCMC) and natural optical activity in an inversion-broken tilted Weyl semimetal (WSM). Starting from the Kubo formula, we derive…
Non-linear Nernst effect in bilayer WTe
Chuanchang Zeng, Snehasish Nandy, A. Taraphder +1
Unlike the conventional (linear) anomalous Nernst effect, the non-linear anomalous Nernst effect (NLANE) can survive in an inversion symmetry broken system even in the presence of…
Symmetry and Quantum Kinetics of the Non-linear Hall Effect
Snehasish Nandy, Inti Sodemann
We argue that the static non-linear Hall conductivity can always be represented as a vector in two-dimensions and as a pseudo-tensor in three-dimensions independent of its microsco…