Journal
NANOTECHNOLOGY
Volume 29, Issue 32, Pages -Publisher
IOP PUBLISHING LTD
DOI: 10.1088/1361-6528/aac66f
Keywords
silicene; tight-binding; spin; charge transport
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We report peculiar charge and spin transport properties in S-shaped silicene junctions with the Kane-Mele tight-binding model. In this work, we investigate the effects of electric and exchange fields on the charge and spin transport properties. Our results show that by applying a perpendicular electric field, metal-semiconductor and also semimetal-semiconductor phase transitions occur in our systems. Furthermore, full spin current can be obtained in the structures, so the half-metallic states are observable. Our results enable us to control charge and spin currents and provide new opportunities and applications in silicene-based electronics, optoelectronics, and spintronics.
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