Low-Frequency Divergence and Quantum Geometry of the Bulk Photovoltaic Effect in Topological Semimetals

We study the low-frequency properties of the bulk photovoltaic effect in topological semimetals. The bulk photovoltaic effect is a nonlinear optical effect that generates dc photocurrents under uniform irradiation, which is allowed by noncentrosymmetry. It is a promising mechanism for a terahertz ph...

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Bibliographic Details
Main Authors: Junyeong Ahn, Guang-Yu Guo, Naoto Nagaosa
Format: Article
Language:English
Published: American Physical Society 2020-11-01
Series:Physical Review X
Online Access:http://doi.org/10.1103/PhysRevX.10.041041