Eisenstein, J. P. and Stormer, H. L. and Pfeiffer, L. N. and West, K. W. (1990) Evidence for a spin transition in the ν=2/3 fractional quantum Hall effect. Physical Review B, 41 (11). pp. 7910-7913. ISSN 0163-1829 http://resolver.caltech.edu/CaltechAUTHORS:EISprb90
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Magnetotransport measurements on a low-density two-dimensional electron system have revealed a re-entrant dependence of the activation energy on magnetic field for the fractional quantum Hall state at 2/3 filling of the lowest Landau level. The data are consistent with a change in the spin structure of the ground state at 2/3 filling, but do not provide a simple picture of the quasiparticle excitation process. As yet we find no similar effect for the ν=2/5 state.
|Additional Information:||©1990 The American Physical Society Received 29 December 1989 It is a pleasure thank A. H. MacDonald for discussions and M. A. Chin and K. W. Baldwin for their technical support.|
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|Deposited On:||26 Jul 2006|
|Last Modified:||26 Dec 2012 08:57|
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