IMPURITY AND BOUNDARY ROUGHNESS SCATTERING IN GAAS-ALXGA1-XAS ELECTRON WAVE-GUIDES

被引：12
|
作者：
SAKAMOTO, T
TAKAGAKI, Y
GAMO, K
NAMBA, S
TAKAOKA, S
MURASE, K
机构：
[1] OSAKA UNIV,FAC ENGN SCI,DEPT ELECT ENGN,TOYONAKA,OSAKA 560,JAPAN
[2] OSAKA UNIV,EXTREME MAT RES CTR,TOYONAKA,OSAKA 560,JAPAN
[3] OSAKA UNIV,FAC SCI,DEPT PHYS,TOYONAKA,OSAKA 560,JAPAN
来源：
SOLID STATE COMMUNICATIONS | 1991年 / 80卷 / 07期
关键词：
D O I：
10.1016/0038-1098(91)90067-6
中图分类号：
O469 [凝聚态物理学];
学科分类号：
070205 ;
摘要：
A characteristic decay length of the ballistic transport is studied by measuring the transfer resistance R(T). The ballistic mean free path L(B) over which the momentum-memory is conserved is found to be less than the transport mean free path due to frequent small angle scatterings. Diffuse boundary roughness scattering strongly reduces L(B) when the channel width is decreased. The amplitude of the zero-field peak in R(T) does not obey the size scaling predicted by the classical model when the boundary roughness disturbs the momentum-memory.
引用
收藏
页码：535 / 539
页数：5
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