Geometric photon-drag effect and nonlinear shift current in centrosymmetric crystals

• Main Authors: Shi, Li-kun, Zhang, Dong, Chang, Kai, Song, Justin Chien Wen
• Other Authors: School of Physical and Mathematical Sciences
• Format: Article
• Language: English
• Published: 2021
• Subjects: Science::Physics; Spin; Transition
• Online Access: https://hdl.handle.net/10356/153641
• Institution: Nanyang Technological University

The nonlinear shift current, also known as the bulk photovoltaic current generated by linearly polarized light, has long been known to be absent in crystals with inversion symmetry. Here we argue that a nonzero shift current in centrosymmetric crystals can be activated by a photon-drag effect. Photo...