TY  - JOUR
PB  - SciPost Foundation
DO  - 10.21468/SciPostPhysCore.7.1.002
TI  - Frequency-independent optical spin injection in Weyl semimetals
PY  - 2024/01/22
UR  - https://scipost.org/SciPostPhysCore.7.1.002
JF  - SciPost Physics Core
JA  - SciPost Phys. Core
VL  - 7
IS  - 1
SP  - 002
A1  - Gao, Yang
AU  - Wang, Chong
AU  - Xiao, Di
AB  - We demonstrate that in Weyl semimetals, the momentum-space helical spin texture can couple to the chirality of the Weyl node to generate a frequency-independent optical spin injection. This frequency-independence is rooted in the topology of the Weyl node. Since the helicity and the chirality are always locked for Weyl nodes, the injected spin from a pair of Weyl nodes always add up, implying no symmetry requirements for Weyl semimetals. Finally, we show that such frequency-independent spin injection is robust against multiband corrections and lattice-regularization effect and capable of realizing all-optical magnetization switching in the THz regime.
ER  -

@Article{10.21468/SciPostPhysCore.7.1.002,
	title={{Frequency-independent optical spin injection in Weyl semimetals}},
	author={Yang Gao and Chong Wang and Di Xiao},
	journal={SciPost Phys. Core},
	volume={7},
	pages={002},
	year={2024},
	publisher={SciPost},
	doi={10.21468/SciPostPhysCore.7.1.002},
	url={https://scipost.org/10.21468/SciPostPhysCore.7.1.002},
}