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The role of density imbalance in the vT = 1 exciton condensate state for electron bilayer systems

Wiersma, R. D. ; Lok, J. G. S. ; Dietsche, W. ; Klitzing, Klaus von ; Schuh, Dieter ; Wegscheider, Werner
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Date of publication of this fulltext: 08 Feb 2010 13:23


Abstract

We report on our experimental work involving the T = 1 exciton condensate in independently contacted bilayer two-dimensional electron systems. A phase diagram between the weakly coupled ( U = 1/2, L = 1/2) phase and the strongly coupled T = 1 phase is experimentally investigated as a function of d /B and electron density imbalance n ( [n L - n U]/n T) using a drag current configuration. For ...

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