物理
石墨烯
无质量粒子
量子阱
电子
混合(物理)
量子力学
凝聚态物理
动量(技术分析)
波矢
量子
传输(电信)
矢量势
激光器
财务
经济
磁场
电气工程
工程类
作者
J. Milton Pereira,Vladan Mlinar,F. M. Peeters,P. Vasilopoulos
标识
DOI:10.1103/physrevb.74.045424
摘要
We report the existence of confined massless fermion states in a graphene quantum well (QW) by means of analytical and numerical calculations. These states show an unusual quasilinear dependence on the momentum parallel to the QW: their number depends on the wave vector and is constrained by electron-hole conversion in the barrier regions. An essential difference with nonrelativistic electron states is a mixing between free and confined states at the edges of the free-particle continua, demonstrated by the direction-dependent resonant transmission across a potential well.
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