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Anisotropic state of two-dimensional electron gas in high Landau levels

Lilly, M. P. and Cooper, K. B. and Eisenstein, J. P. and Pfeiffer, L. N. and West, K. W. and Wegscheider, W. and Bichler, M. (2000) Anisotropic state of two-dimensional electron gas in high Landau levels. In: Advances in Solid State Physics 40. Advances in Solid State Physics. No.40. Springer , Berlin, pp. 65-76. ISBN 978-3-540-41576-3.

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When several Landau levels of a high mobility two-dimensional electron system are occupied, transport measurements reveal evidence for intriguing new phenomena at low temperature. Near half filling in the N=2 and higher spin-split Landau levels, dramatic resistance anisotropies are observed. Large magnetoresistance peaks form in one direction in the 2D plane while deep minima form in the in the orthogonal direction. Application of a parallel magnetic field can re-orient this anisotropy. Interestingly, in the N=1 Landau level, parallel fields not only suppress the energy gap of the ν=5/2 fractional quantum Hall state but also render the transport highly anisotropic.

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Additional Information:© 2000 Friedr. Vieweg & Sohn Verlagsgesellschaft mbH. This work was supported by the National Science Foundation through grant DMR-9700945 and the Department of Energy through grant DE-FG03-99ER45766.
Funding AgencyGrant Number
Department of Energy (DOE)DE-FG03-99ER45766
Subject Keywords:Landau Level; Charge Density Wave; Parallel Field; Parallel Magnetic Field; Hall Resistance
Series Name:Advances in Solid State Physics
Issue or Number:40
Record Number:CaltechAUTHORS:20190822-085425450
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Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:98097
Deposited By: Tony Diaz
Deposited On:22 Aug 2019 16:23
Last Modified:16 Nov 2021 17:36

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