Giant hall photoconductivity in narrow-gapped dirac materials

• Main Authors: Song, Justin Chien Wen, Kats, Mikhail A.
• Other Authors: School of Physical and Mathematical Sciences
• Format: Article
• Language: English
• Published: 2020
• Subjects: Science::Physics; Photoconductivity; Two-dimensional Materials
• Online Access: https://hdl.handle.net/10356/137991
• Institution: Nanyang Technological University

Carrier dynamics acquire a new character in the presence of Bloch-band Berry curvature, which naturally arises in gapped Dirac materials (GDMs). Here, we argue that photoresponse in GDMs with small band gaps is dramatically enhanced by Berry curvature. This manifests in a giant and saturable Hall ph...