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Nonlinear optics induced current with angular momentum information
发布者: 周健 | 2021-05-07

We apply Kubo perturbation theory and show that pure and hidden orbital current exists in 2D ferroelectrics, and it would trigger spin current under spin-orbit coupling interaction. Symmetry analysis has been applied to understand such pure angular momentum currents.

See our publication in npj Computational Materials 7, 61 (2021) at https://www.nature.com/articles/s41524-021-00531-7.