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Andreev reflection at high magnetic fields: Evidence for electron and hole transport in edge states

Eroms, Jonathan and Weiss, Dieter and DeBoeck, J. and Borghs, G. and Zülicke, U. (2005) Andreev reflection at high magnetic fields: Evidence for electron and hole transport in edge states. Physical Review Letters 95, p. 107001.

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Other URL: http://prola.aps.org/pdf/PRL/v95/i10/e107001, http://prl.aps.org/


Abstract

We have studied magnetotransport in arrays of niobium filled grooves in an InAs/AlxGa1- xSb heterostructure. The critical field of up to 2.6 T permits one to enter the quantum Hall regime. In the superconducting state, we observe strong magnetoresistance oscillations, whose amplitude exceeds the Shubnikov–de Haas oscillations by a factor of about 2, when normalized to the background. ...

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Item Type:Article
Date:2005
Institutions:Physics > Institute of Experimental and Applied Physics > Chair Professor Weiss > Group Dieter Weiss
Subjects:500 Science > 530 Physics
Status:Published
Refereed:Yes, this version has been refereed
Created at the University of Regensburg:Yes
Owner: Claudia Rahm
Deposited On:25 May 2009 13:21
Last Modified:05 Aug 2009 13:57
Item ID:7925
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