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On the direct insulator-quantum Hall transition in two-dimensional electron systems in the vicinity of nanoscaled scatterers.

ABSTRACT: A direct insulator-quantum Hall (I-QH) transition corresponds to a crossover/transition from the insulating regime to a high Landau level filling factor ? > 2 QH state. Such a transition has been attracting a great deal of both experimental and theoretical interests. In this study, we present three different two-dimensional electron systems (2DESs) which are in the vicinity of nanoscaled scatterers. All these three devices exhibit a direct I-QH transition, and the transport properties under different nanaoscaled scatterers are discussed.

SUBMITTER: Liang CT

PROVIDER: S-EPMC3211178 | biostudies-literature | 2011 Feb

REPOSITORIES: biostudies-literature

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On the direct insulator-quantum Hall transition in two-dimensional electron systems in the vicinity of nanoscaled scatterers.

Liang Chi-Te CT Lin Li-Hung LH Kuang Yoa Chen C Lo Shun-Tsung ST Wang Yi-Ting YT Lou Dong-Sheng DS Kim Gil-Ho GH Yuan-Huei Chang C Ochiai Yuichi Y Aoki Nobuyuki N Chen Jeng-Chung JC Lin Yiping Y Chun-Feng Huang H Lin Sheng-Di SD Ritchie David A DA

Nanoscale research letters 20110211 1

A direct insulator-quantum Hall (I-QH) transition corresponds to a crossover/transition from the insulating regime to a high Landau level filling factor ν > 2 QH state. Such a transition has been attracting a great deal of both experimental and theoretical interests. In this study, we present three different two-dimensional electron systems (2DESs) which are in the vicinity of nanoscaled scatterers. All these three devices exhibit a direct I-QH transition, and the transport properties under diff ...[more]

PMID: 21711637

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