ELECTRON NUMBER DENSITY AND CURRENT-DENSITY IN ONE-DIMENSIONAL BALLISTIC CHANNELS

被引:4
作者
ISAWA, Y
机构
[1] Faculty of Engineering, Hiroshima University, Saijyo
关键词
D O I
10.1143/JPSJ.60.33
中图分类号
O4 [物理学];
学科分类号
0702 ;
摘要
In terms of the Wigner distribution function, we investigate an idealized one-dimensional model in which scattering potentials in the conducting channel, leads, and reservoirs are treated as a whole without separating them. We find that the electron density oscillates around the scattering potential, and the two-terminal conductance G in our model is quantized, G = 2e2/h, independent of the transmission coefficient of the electron wave.
引用
收藏
页码:33 / 36
页数:4
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Lighthill M. J., 1958, An introduction to Fourier analysis and generalised functions