期刊
APPLIED PHYSICS LETTERS
卷 115, 期 22, 页码 -出版社
AMER INST PHYSICS
DOI: 10.1063/1.5127090
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资金
- National Key R&D Program of China [2016YFA0401002]
- National Natural Science Foundation of China [61875223, 11375228, 11575227]
- Vacuum Interconnected Nanotech Workstation (Nano-X) of Suzhou Institute of Nano-Tech and Nano-Bionics (SINANO), Chinese Academy of Sciences
Antimonene is a recently discovered two-dimensional semiconductor with high carrier mobility, suitable bandgap, and strong spin-orbit coupling, which is of great interest for future electronic, optoelectronic, and spintronics device applications. However, as the basic properties of materials, the electronic structure of antimonene is not fully understood. In this work, the whole and anisotropic electronic structures of antimonene modulated by a horizontal crystal field have been studied in detail by angle-resolved photoemission spectroscopy. The valence band of antimonene for semiconductor properties is characterized by a three-dimensional anisotropic M-shape with hexagonal deformation in (E, k(x), k(y)) space. Moreover, the surface state of antimonene for metallic properties is characterized by an upward conelike structure with a stronger warping effect. The anisotropic electronic structure of antimonene is systematically depicted along the high symmetric direction and constant energy contours. Published under license by AIP Publishing.
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