Wiersma, R. D. and Lok, J. G. S. and Dietsche, W. and von Klitzing, K. and Schuh, Dieter and Wegscheider, Werner (2006) The role of density imbalance in the nu(T)=1 exciton condensate state for electron bilayer systems. PHYSICA STATUS SOLIDI B-BASIC SOLID STATE PHYSICS, 243 (14). pp. 3643-3647. ISSN 0370-1972,
Full text not available from this repository. (Request a copy)Abstract
We report on our experimental work involving the nu(T) = I exciton condensate in independently contacted bilayer two-dimensional electron systems. A phase diagram between the weakly coupled (nu(U) = 1/2, nu(L) = 1/2) phase and the strongly coupled nu(T) = 1 phase is experimentally investigated as a function of d/l(B) and electron density imbalance Delta n (equivalent to [n(L) - nU]/n(T)) using a drag current configuration. For imbalanced electron layer densities, small interlayer imbalances lead to strengthening of the excitonic phase. Here density imbalance leads to a phase boundary in the drag layer which is symmetric around zero imbalance. Surprisingly this behavior is not seen for rho(drive,xx), where an unusual asymmetric behavior around zero im-balance occurs. (c) 2006 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim.
| Item Type: | Article |
|---|---|
| Uncontrolled Keywords: | DOUBLE-QUANTUM-WELLS; |
| Subjects: | 500 Science > 530 Physics |
| Divisions: | Physics > Institute of Experimental and Applied Physics > Alumni or Retired Professors > Group Werner Wegscheider |
| Depositing User: | Dr. Gernot Deinzer |
| Date Deposited: | 20 Jan 2021 07:42 |
| Last Modified: | 20 Jan 2021 07:42 |
| URI: | https://pred.uni-regensburg.de/id/eprint/33839 |
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