Lateral superlattices on parabolic quantum wells -: art. no. 165317

被引:6
|
作者
Lindemann, S [1 ]
Bänninger, M
Ihn, T
Heinzel, T
Ulloa, SE
Ensslin, K
Maranowski, K
Gossard, AC
机构
[1] Swiss Fed Inst Technol, Solid State Phys Lab, CH-8093 Zurich, Switzerland
[2] Univ Calif Santa Barbara, Dept Mat, Santa Barbara, CA 93106 USA
关键词
D O I
10.1103/PhysRevB.66.165317
中图分类号
T [工业技术];
学科分类号
08 ;
摘要
Lateral superlattices have been fabricated on AlGaAs parabolic quantum wells. Two electrical subbands occupied in the growth direction lead to two sets of classical commensurability oscillations, each characterized by a different Fermi velocity. The dominant features can be explained by combining quantum-mechanical subband occupation and classical commensurability oscillations. The potential modulation of the lateral superlattice can be tuned by the nanopatterned top gate as well as by a back gate electrode.
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收藏
页码:1 / 5
页数:5
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