1. Independent spin polarized valence electronic states in VSe2 from charge density wave transition.
- Author
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Jiang, Qi, Xia, Wei, Xu, Tao, Liu, Wenjing, Shen, Xiaoping, Guo, Yanfeng, Ye, Mao, and Qiao, Shan
- Subjects
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CHARGE density waves , *PHOTOELECTRON spectroscopy , *SPIN polarization , *FERMI energy , *TRANSITION temperature , *PHOTOEMISSION , *SPIN-spin interactions - Abstract
Vanadium diselenide (VSe 2) is a van der Waals layered transitional metal dichalcogenide, which has attracted intensive attention due to the coexistence of charge density wave (CDW) transition and magnetic property down to two-dimension limit. We apply Spin- and angle-resolved photoemission spectroscopy measurement to explore the evolution of the valence eletronic states of VSe 2 accompanied with the CDW transition. The V 3 d -derived-band in the vicinity of Fermi energy shows negligible spin polarization both below and above the CDW transition temperature. Furthermore, a sizable spin polarization of Se 4 p electronic states has been clearly observed, indicating an atomic-layer-dependent spin polarization in VSe 2. Our results provide new clues to understand the spin polarized electronic states in transitional metal dichalcogenides. [ABSTRACT FROM AUTHOR]
- Published
- 2020
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