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19 April 2024 |
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Imaging of Low Compressibility Strips in the Quantum Hall Liquid | | G. Finkelstein
; P.I. Glicofridis
; S.H. Tessmer
; R.C. Ashoori
; M. R. Melloch
; | | Date: |
5 Oct 1999 | | Subject: | Mesoscopic Systems and Quantum Hall Effect | cond-mat.mes-hall | | Affiliation: | 1,2), R.C. Ashoori , M. R. Melloch ( Massachusetts Institute of Technology, Michigan State University, Purdue University | | Abstract: | Using Subsurface Charge Accumulation scanning microscopy we image strips of low compressibility corresponding to several integer Quantum Hall filling factors. We study in detail the strips at Landau level filling factors $
u =$ 2 and 4. The observed strips appear significantly wider than predicted by theory. We present a model accounting for the discrepancy by considering a disorder-induced nonzero density of states in the cyclotron gap. | | Source: | arXiv, cond-mat/9910061 | | Services: | Forum | Review | PDF | Favorites | |
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