Lilly, M. P. and Cooper, K. B. and Eisenstein, J. P. and Pfeiffer, L. N. and West, K. W. (1999) Evidence for an anisotropic state of two-dimensional electrons in high Landau levels. Physical Review Letters, 82 (2). pp. 394-397. ISSN 0031-9007. doi:10.1103/PhysRevLett.82.394. https://resolver.caltech.edu/CaltechAUTHORS:LILprl99a
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Abstract
Magnetotransport experiments on high mobility two-dimensional electron gases in GaAs/AlGaAs heterostructures have revealed striking anomalies near half filling of several spin-resolved, yet highly excited, Landau levels. These anomalies include strong anisotropies and nonlinearities of the longitudinal resistivity ρxx which commence only below about 150 mK. These phenomena are not seen in the ground state or first excited Landau level but begin abruptly in the third level. Although their origin remains unclear, we speculate that they reflect the spontaneous development of a generic anisotropic many-electron state.
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| Additional Information: | © 1999 The American Physical Society. Received 19 August 1998. We thank J. Chalker, S.M. Girvin, B. Halperin, A.H. MacDonald, and K. Yang for helpful discussions and Ian Spielman for help in determining the crystallographic axes in our samples. This work was supported by the National Science Foundation. | |||||||||
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| Subject Keywords: | CHARGE-DENSITY-WAVE; TRANSITION; LIQUID | |||||||||
| Issue or Number: | 2 | |||||||||
| DOI: | 10.1103/PhysRevLett.82.394 | |||||||||
| Record Number: | CaltechAUTHORS:LILprl99a | |||||||||
| Persistent URL: | https://resolver.caltech.edu/CaltechAUTHORS:LILprl99a | |||||||||
| Usage Policy: | No commercial reproduction, distribution, display or performance rights in this work are provided. | |||||||||
| ID Code: | 6569 | |||||||||
| Collection: | CaltechAUTHORS | |||||||||
| Deposited By: | Tony Diaz | |||||||||
| Deposited On: | 13 Dec 2006 | |||||||||
| Last Modified: | 08 Nov 2021 20:35 |
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