Frequency-independent optical spin injection in Weyl semimetals

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 al...

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Bibliographic Details
Main Author: Yang Gao, Chong Wang, Di Xiao
Format: Article
Language:English
Published: SciPost 2024-01-01
Series:SciPost Physics Core
Online Access:https://scipost.org/SciPostPhysCore.7.1.002