Breakdown of Counterflow Superfluidity in a Disordered Quantum Hall Bilayer
Joint Authors
Lee, D. K. K.
Cooper, N. R.
Eastham, P. R.
Source
Advances in Condensed Matter Physics
Issue
Vol. 2011, Issue 2011 (31 Dec. 2011), pp.1-7, 7 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2011-02-24
Country of Publication
Egypt
No. of Pages
7
Main Subjects
Abstract EN
We present a theory for the regime of coherent interlayer tunneling in a disordered quantum Hall bilayer at total filling factor one, allowing for the effect of static vortices.
We find that the system consists of domains of polarized superfluid phase.
Injected currents introduce phase slips between the polarized domains which are pinned by disorder.
We present a model of saturated tunneling domains that predicts a critical current for the breakdown of coherent tunneling that is extensive in the system size.
This theory is supported by numerical results from a disordered phase model in two dimensions.
We also discuss how our picture might be used to interpret experiments in the counterflow geometry and in two-terminal measurements.
American Psychological Association (APA)
Lee, D. K. K.& Eastham, P. R.& Cooper, N. R.. 2011. Breakdown of Counterflow Superfluidity in a Disordered Quantum Hall Bilayer. Advances in Condensed Matter Physics،Vol. 2011, no. 2011, pp.1-7.
https://search.emarefa.net/detail/BIM-498467
Modern Language Association (MLA)
Lee, D. K. K.…[et al.]. Breakdown of Counterflow Superfluidity in a Disordered Quantum Hall Bilayer. Advances in Condensed Matter Physics No. 2011 (2011), pp.1-7.
https://search.emarefa.net/detail/BIM-498467
American Medical Association (AMA)
Lee, D. K. K.& Eastham, P. R.& Cooper, N. R.. Breakdown of Counterflow Superfluidity in a Disordered Quantum Hall Bilayer. Advances in Condensed Matter Physics. 2011. Vol. 2011, no. 2011, pp.1-7.
https://search.emarefa.net/detail/BIM-498467
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-498467