Magnetic interface states in graphene-based quantum wires
Magnetic interface states in graphene-based quantum wires
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DOI：
10.1103/physrevb.75.125433
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发表时间：
2006-10
影响因子：
3.7
通讯作者：
J. M. Pereira;F. Peeters;P. Vasilopoulos
中科院分区：
文献类型：
--
作者：
J. M. Pereira;F. Peeters;P. Vasilopoulos
研究了有限宽石墨烯在静电场和垂直磁场作用下的电子态。禁闭势能使势垒内部的朗道能级发生移动，并在势垒界面或界面附近产生载流态，以及由有限厚度的薄片引起的边缘态。给出了详细的能谱作为量子线参数的函数。在有限磁场和零磁场下，计算了态密度对限制势的依赖关系。
The electron states of a finite-width graphene sheet in the presence of an electrostatic confining potential and a perpendicular magnetic field are investigated. The confining potential shifts the Landau levels inside the well and creates current-carrying states at or close to the interface with the potential barriers in addition to the edge states caused by the finite width of the sheet. Detailed energy spectra are given as a function of the quantum wire parameters. The dependence of the density of states on the confinement potential is evaluated for finite and zero magnetic fields.