Giant asymmetry of the longitudinal magnetoresistance in high-mobility two-dimensional electron gas on a cylindrical surface

被引：61
|
作者：
Vorob'ev, A. B.
Friedland, K.-J.
Kostial, H.
Hey, R.
Jahn, U.
Wiebicke, E.
Yukecheva, Ju. S.
Prinz, V. Ya.
机构：
[1] Paul Drude Inst Solid State Elect, D-10117 Berlin, Germany
[2] Inst Semicond Phys, Novosibirsk 630090, Russia
来源：
PHYSICAL REVIEW B | 2007年 / 75卷 / 20期
关键词：
D O I：
10.1103/PhysRevB.75.205309
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
A giant asymmetry in the magnetoresistance was revealed in high-mobility, two-dimensional electron gas on a cylindrical surface. The longitudinal resistance along the magnetic-field gradient impressed by the surface curvature was found to vanish if measured along one of the edges of the curved Hall bar. If the external magnetic field is reversed, then the longitudinal resistance vanishes at the opposite edge of the Hall bar. This asymmetry is analyzed quantitatively in terms of the Landauer-Buttiker formalism.
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页数：6
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