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

Chi Te Liang*, Li Hung Lin, Kuang Yao Chen, Shun-Tsung Lo, Yi Ting Wang, Dong Sheng Lou, Gil Ho Kim, Yuan Huei Chang, Yuichi Ochiai, Nobuyuki Aoki, Jeng Chung Chen, Yiping Lin, Chun Feng Huang, Sheng-Di Lin, David A. Ritchie

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

6 Scopus citations

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 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 different nanaoscaled scatterers are discussed.

Original languageEnglish
JournalNanoscale Research Letters
Volume6
Issue number1
DOIs
StatePublished - 1 Jan 2011

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