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2007 | 112 | 2 | 249-254
Article title

Effect of Disorder on Spin and Charge Excitations in the Fractional Quantum Hall Effect

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EN
Abstracts
EN
A simple model of disorder in fractional quantum Hall systems is combined with the standard exact diagonalisation technique. Electron-density-dependent gaps at filling factors 1/3,2/3,2/5, and 3/5 measured by activated transport can then be fitted with a single reasonable value of d which has the meaning of the separation of ionized donors from the quasi-2D electron gas.
Keywords
Contributors
author
  • Fyzikálníústav Akademie vědČeské rep., Cukrovarnická 10, 16253 Praha 6, Czech Republic
author
  • I. Inst. für theor. Physik, Universität Hamburg, Jungiusstr. 9, 20355 Hamburg, Germany
author
  • Inst. für Festkörperphysik, Universität Hannover, Appelstr. 2, 30167 Hannover, Germany
  • Centre for Atom Optics and Ultrafast Spectroscopy, Swinburne University of Technology, Hawthorn, Victoria 3122, Australia
author
  • Inst. für Festkörperphysik, Universität Hannover, Appelstr. 2, 30167 Hannover, Germany
author
  • Instytut Fizyki, Politechnika Wrocławska, Wybrzeże Wyspiańskiego 27, 50-370 Wrocław, Poland
References
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  • 6. K. Výborný, Ch. Muller, D. Pfannkuche, cond-mat/0703109; K. Výborný, Ann. Phys. (Leipzig), 16, 87, 2007
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  • 8. Xin Wan, D.N. Sheng, E.H. Rezayi, Kun Yang, R.N. Bhatt, F.D.M. Haldane, Phys. Rev. B, 72, 075325, 2005; D.N. Sheng, Xin Wan, E.H. Rezayi, Kun Yang, R.N. Bhatt, F.D.M. Haldane, Phys. Rev. Lett., 90, 256802, 2003
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Document Type
Publication order reference
Identifiers
YADDA identifier
bwmeta1.element.bwnjournal-article-appv112n220kz
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