Commensurability effects in Andreev antidot billiards

DOI to cite this document:: 10.5283/epub.1349

Eroms, Jonathan

; Tolkiehn, Martin ; Weiss, Dieter

; Rössler, Ulrich ; Boeck, J. De ; Borghs, G.

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Date of publication of this fulltext: 05 Aug 2009 13:28

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Abstract

An Andreev billiard was realised in an array of niobium filled antidots in a high-mobility InAs/AlGaSb heterostructure. Below the critical temperature T-C of the Nb dots we observe a strong reduction of the resistance around B=0 and a suppression of the commensurability peaks which are usually found in antidot lattices. Both effects can be explained in a classical Kubo approach by considering the ...