Physical review letters
Surface-State Engineering for Generation of Nonlinear Charge and Spin Photocurrents.
Javier Sivianes, Peio Garcia-Goiricelaya, Daniel Hernangómez-Pérez, Julen Ibañez-Azpiroz
Published: 202510.1103/h8rp-rtn8
Abstract
We systematically explore the generation of nonlinear charge and spin photocurrents using spin-orbit split surface states. This mechanism enables net DC flow along the surface plane even in centrosymmetric bulk environments like the Rashba prototype…
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