2-DIMENSIONAL ELECTRONS IN A LATERAL MAGNETIC SUPERLATTICE

被引:272
作者
CARMONA, HA
GEIM, AK
NOGARET, A
MAIN, PC
FOSTER, TJ
HENINI, M
BEAUMONT, SP
BLAMIRE, MG
机构
[1] UNIV GLASGOW,DEPT ELECTR & ELECT ENGN,GLASGOW G12 8QQ,LANARK,SCOTLAND
[2] UNIV CAMBRIDGE,DEPT MAT SCI & MET,CAMBRIDGE CD2 3QZ,ENGLAND
关键词
D O I
10.1103/PhysRevLett.74.3009
中图分类号
O4 [物理学];
学科分类号
0702 ;
摘要
We report, for the first time, ballistic magnetoresistance effects in a two-dimensional electron gas (2DEG) subjected to a spatially modulated periodic magnetic field. The periodic magnetic field is formed by the presence of superconducting stripes on the surface of the heterostructure with a 2DEG. We observe oscillatory magnetoresistance due to a commensurability effect between the classical cyclotron diameter and the period of magnetic modulation. The behavior is in agreement with existing theory with no adjustable parameters. © 1995 The American Physical Society.
引用
收藏
页码:3009 / 3012
页数:4
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