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Hartree-Fock interactions in the integer quantum Hall effect
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Roemer, Rudolf A. and Sohrmann, C. (2008) Hartree-Fock interactions in the integer quantum Hall effect. Physica Status Solidi. B : Basic Research, Vol.245 (No.2). pp. 336-343. doi:10.1002/pssb.200743321 ISSN 0370-1972.
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Official URL: http://dx.doi.org/10.1002/pssb.200743321
Abstract
We report on numerical studies into the interplay of disorder and electron-electron interactions within the integer quantum Hall regime, where the presence of a strong magnetic field and two-dimensional confinement of the electronic system profoundly affects thermodynamic and transport properties. We emphasise the behaviour of the electronic compressibility, the local density of states, and the Kubo conductivity. Our treatment of the electron-electron interactions relies on the Hartree-Fock approximation so as to achieve system sizes comparable to experimental situations. Our results clearly exhibit manifestations of various interaction-mediated features, such as non-linear screening, local charging, and g-factor enhancement, implying the inadequacy of independent-particle models for comparison with experimental results. (C) 2008 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim.
Item Type: | Journal Article | ||||
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Subjects: | Q Science > QC Physics | ||||
Divisions: | Faculty of Science, Engineering and Medicine > Science > Physics Faculty of Science, Engineering and Medicine > Science > Centre for Scientific Computing |
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Library of Congress Subject Headings (LCSH): | Quantum Hall effect, Hartree-Fock approximation, Electron-electron interactions | ||||
Journal or Publication Title: | Physica Status Solidi. B : Basic Research | ||||
Publisher: | Wiley - V C H Verlag GmbH & Co. KGaA | ||||
ISSN: | 0370-1972 | ||||
Official Date: | February 2008 | ||||
Dates: |
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Volume: | Vol.245 | ||||
Number: | No.2 | ||||
Number of Pages: | 8 | ||||
Page Range: | pp. 336-343 | ||||
DOI: | 10.1002/pssb.200743321 | ||||
Status: | Peer Reviewed | ||||
Publication Status: | Published | ||||
Funder: | Deutsche Forschungsgemeinschaft (DFG) | ||||
Grant number: | Ro 1165-1/2/P (DFG) |
Data sourced from Thomson Reuters' Web of Knowledge
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