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Magnetotransport in ultrashort period unidirectional lateral superlattices

✍ Scribed by Yasuhiro Iye; Akira Endo; Shingo Katsumoto; Yasuhide Ohno; Satoshi Shimomura; Satoshi Hiyamizu

Publisher
Elsevier Science
Year
2002
Tongue
English
Weight
314 KB
Volume
12
Category
Article
ISSN
1386-9477

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✦ Synopsis

Magnetotransport in GaAs=AlGaAs quantum wells with ultrashort period (a = 12 nm) unidirectional potential modulation has been studied. Systematic suppression of the exchange enhancement mechanism for quantum Hall spin gap is observed. A reproducible a periodic uctuation of magnetoresistance reminiscent of mesoscopic uctuation is found in a certain sample.

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