Nonlinear valley selection rules and all-optical probe of broken time-reversal symmetry in monolayer WSe2

URN to cite this document:: urn:nbn:de:bvb:355-epub-745818
DOI to cite this document:: 10.5283/epub.74581

Herrmann, Paul ; Klimmer, Sebastian ; Lettau, Thomas ; Weickhardt, Till ; Papavasileiou, Anastasios ; Mosina, Kseniia ; Sofer, Zdeněk ; Paradisanos, Ioannis ; Kartashov, Daniil ; Wilhelm, Jan

; Soavi, Giancarlo

License: Creative Commons Attribution 4.0
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Date of publication of this fulltext: 08 Jan 2025 09:13

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Abstract

In monolayer transition metal dichalcogenides, time-reversal symmetry—combined with broken space-inversion symmetry—defines the spin–valley degree of freedom. As such, the engineering and control of time-reversal symmetry by optical or magnetic fields constitutes the foundation of valleytronics. Here we propose a new approach for the detection of broken time-reversal symmetry and valley imbalance ...