Evidence for a finite-temperature phase transition in a bilayer quantum Hall system.

Champagne, A R; Eisenstein, J P; Pfeiffer, L N; West, K W

Champagne, A R; Eisenstein, J P; Pfeiffer, L N; West, K W.

Afiliación

Champagne AR; Condensed Matter Physics, California Institute of Technology, Pasadena CA 91125, USA.

Phys Rev Lett ; 100(9): 096801, 2008 Mar 07.

Article en En | MEDLINE | ID: mdl-18352740

RESUMEN

We study the Josephson-like interlayer tunneling signature of the strongly correlated nuT=1 quantum Hall phase in bilayer two-dimensional electron systems as a function of the layer separation, temperature, and interlayer charge imbalance. Our results offer strong evidence that a finite temperature phase transition separates the interlayer coherent phase from incoherent phases which lack strong interlayer correlations. The transition temperature is dependent on both the layer spacing and charge imbalance between the layers.

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Colección: 01-internacional Base de datos: MEDLINE Idioma: En Revista: Phys Rev Lett Año: 2008 Tipo del documento: Article País de afiliación: Estados Unidos Pais de publicación: Estados Unidos

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