Lilly, M. P. and Cooper, K. B. and Eisenstein, J. P. and Pfeiffer, L. N. and West, K. W. (1999) Anisotropic States of Two-Dimensional Electron Systems in High Landau Levels: Effect of an In-Plane Magnetic Field. Physical Review Letters, 83 (4). pp. 824-827. ISSN 0031-9007 http://resolver.caltech.edu/CaltechAUTHORS:LILprl99b
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We report the observation of an acute sensitivity of the anisotropic longitudinal resistivity of two-dimensional electron systems in half-filled high Landau levels to the magnitude and orientation of an in-plane magnetic field. In the third and higher Landau levels, at filling fractions ν = 9/2, 11/2, etc., the in-plane field can lead to a striking interchange of the “hard” and “easy” transport directions. In the second Landau level the normally isotropic resistivity and the weak ν = 5/2 quantized Hall state are destroyed by a large in-plane field and the transport becomes highly anisotropic.
|Additional Information:||©1999 The American Physical Society Received 12 March 1999 We are indebted to S. Girvin, A. H. MacDonald, B. Shklovskii, S. Simon, and K. Yang for valuable discussion and the NSF for Grant No. DMR-9700945.|
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|Deposited On:||13 Dec 2006|
|Last Modified:||26 Dec 2012 09:23|
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