Edge states in a strong magnetic field
Edge states in a strong magnetic field
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强磁场中的边缘态
DOI：
10.1088/0305-4470/27/2/009
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发表时间：
1993
期刊：
影响因子：
--
通讯作者：
Baruch Rosenstein
中科院分区：
文献类型：
--
作者：
I. Bartoš;Baruch Rosenstein
在有限阶势垒模型下，计算了二维电子气边缘态的能量和波函数。光谱表现出更丰富的结构比以前观察到的无限势垒模型。令人惊讶的是，而不是平滑的朗道水平弯曲附近的障碍，各级获得一个阶梯状的形式。这些平台对磁输运传导通道的宽度具有直接影响。
Energies and wavefunctions of edge states in a two-dimensional electron gas are evaluated for a finite step potential barrier model. The spectrum exhibits richer structure than observed previously for an infinite barrier model. Surprisingly, instead of smooth Landau level bending in the vicinity of the barrier, the levels acquire a step-like form. These plateaus have a direct impact on the widths of the magnetotransport conducting channels.