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arXiv · 1706.01020

Circular Dichroism and Radial Hall Effects in Topological Materials

Ying Liu·Shengyuan A. Yang·Fan Zhang
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Abstract

Under symmetry breaking, a three-dimensional nodal-line semimetal can turn into a topological insulator or Weyl semimetal, accompanied by the generation of momentum-space Berry curvature. We develop a theory that unifies their circular dichroism and highlights the roles of Berry curvature distribution and light incident direction. Nontrivially, these phases exhibit distinct dichroic optical absorption and radial Hall effects, with characteristic scalings with photon energy and electric field. Our findings offer a new diagnosis tool for examining topological phases of matter.

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Ying Liu, Shengyuan A. Yang, Fan Zhang. 2017-06-04. Circular Dichroism and Radial Hall Effects in Topological Materials. https://doi.org/10.1103/physrevb.97.035153

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