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cond-mat.mes-hall2026
Switchable Surface Linear Photogalvanic Effect in the Magnetic Weyl Semimetal Co3Sn2S2
Niket Shah, Aymen Nomani, Kai Chen +2
We investigate the linear photogalvanic effect (LPGE) on the surface of the magnetic Weyl semimetal Co3Sn2S2 using a Green's-function and diagrammatic formalism. While the LPGE van…
cond-mat.mes-hall2025★ 2 cited
Non-Hermitian quantum geometric tensor and nonlinear electrical response
Kai Chen, Jie Zhu
We demonstrate that the non-Hermitian quantum geometric tensor (QGT) governs nonlinear electrical responses in systems with a spectral line gap. The quantum metric, which is the sy…