Eroms, J. and Tolkiehn, M. and Weiss, D. and Roessler, Ulrich and De Boeck, J. and Borghs, G. (2002) Commensurability effects in Andreev antidot billiards. EUROPHYSICS LETTERS, 58 (4). pp. 569-575. ISSN 0295-5075
Full text not available from this repository.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 trajectories of charge carriers in the semiconductor, when Andreev reflection at the semiconductor-superconductor interface is included. For perfect Andreev reflection, we expect a complete suppression of the commensurability features, even though motion at finite B is chaotic.
| Item Type: | Article |
|---|---|
| Uncontrolled Keywords: | METAL SUPERCONDUCTOR INTERFACE; JOSEPHSON-JUNCTION; ARRAY; HETEROSTRUCTURES; MAGNETOTRANSPORT; DEPENDENCE; REFLECTION; TRANSPORT; CHAOS; |
| Subjects: | 500 Science > 530 Physics |
| Divisions: | Physics > Institute of Theroretical Physics > Alumni or Retired Professors > Group Ulrich Rössler |
| Depositing User: | Dr. Gernot Deinzer |
| Date Deposited: | 27 Oct 2021 04:45 |
| Last Modified: | 27 Oct 2021 04:45 |
| URI: | https://pred.uni-regensburg.de/id/eprint/40301 |
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