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Liang, Chi-Te; Lin, Li-Hung; Kuang Yoa, Chen; Lo, Shun-Tsung; Wang, Yi-Ting; Lou, Dong-Sheng; Kim, Gil-Ho; Yuan-Huei, Chang; Ochiai, Yuichi; Aoki, Nobuyuki; Chen, Jeng-Chung; Lin, Yiping; Chun-Feng, Huang; Lin, Sheng-Di; Ritchie, David A
Nanoscale research letters, 11/2, Volume: 6, Issue: 1Journal Article
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.
