Ballistic transport and spin-orbit interaction of two-dimensional electrons on a cylindrical surface

被引:50
作者
Magarill, LI [1 ]
Romanov, DA [1 ]
Chaplik, AV [1 ]
机构
[1] Russian Acad Sci, Inst Semicond Phys, Novosibirsk 630090, Russia
关键词
D O I
10.1134/1.558538
中图分类号
O4 [物理学];
学科分类号
0702 ;
摘要
The components of the ballistic magnetoconductance tensor of a two-dimensional electron gas placed on a cylindrical sector are calculated for various geometries. For a quasiclassical system a method is proposed for finding the conductance based only on the Bohr-Sommerfeld quantization condition and not requiring a knowledge of the matrix elements of the velocity. The effect of curvature of the surface on the spin-orbit interaction in a two-dimensional electron gas is investigated. As examples, the microwave absorption and longitudinal conductance of a hollow cylindrical wire are calculated, and also the conductance of a cylindrical sector. There are qualitative differences from planar systems, in particular the relative sign of the curvature and the spin-orbit coupling constant becomes important. (C) 1998 American Institute of Physics.
引用
收藏
页码:771 / 779
页数:9
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