凝聚态物理
半导体
纳米线
电场
材料科学
半径
过渡金属
电子
自旋轨道相互作用
费米能级
拉希巴效应
弹道传导
物理
纳米技术
光电子学
化学
自旋电子学
铁磁性
生物化学
计算机安全
量子力学
计算机科学
催化作用
作者
X. W. Zhang,S. S. Li,Jian‐Bai Xia
摘要
The electronic structures, Rashba spin-orbit couplings, and transport properties of InSb nanowires and nanofilms are investigated theoretically. When both the radius of the wire (or the thickness of the film) and the electric field are large, the electron bands and hole bands overlap, and the Fermi level crosses with some bands, which means that the semiconductors transit into metals. Meanwhile, the Rashba coefficients behave in an abnormal way. The conductivities increase dramatically when the electric field is larger than a critical value. This semiconductor-metal transition is observable at the room temperature.
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