QUASI-PARTICLE INTERFERENCE EFFECTS IN A BALLISTIC SUPERCONDUCTOR-SEMICONDUCTOR-SUPERCONDUCTOR JOSEPHSON-JUNCTION

Authors
BASTIAN G GOBEL EO ZORIN AB SCHULZE H NIEMEYER J WEIMANN T BENNETT MR SINGER KE
Citation
G. Bastian et al., QUASI-PARTICLE INTERFERENCE EFFECTS IN A BALLISTIC SUPERCONDUCTOR-SEMICONDUCTOR-SUPERCONDUCTOR JOSEPHSON-JUNCTION, Physical review letters, 81(8), 1998, pp. 1686-1689
Citations number
23
Categorie Soggetti
Physics
Journal title
Physical review letters → ACNP
ISSN journal
00319007
Volume
81
Issue
8
Year of publication
1998
Pages
1686 - 1689
Database
ISI
SICI code
0031-9007(1998)81:8<1686:QIEIAB>2.0.ZU;2-7
Abstract
We have studied transport properties in a superconductor-semiconductor -superconductor junction formed by two superconducting Nb electrodes a nd a two-dimensional electron gas in an InAs/AlSb heterostructure in t he ballistic regime on the basis of I-V measurements. We observe sharp spikes in the differential resistance at temperatures below 2.5 K whi ch can be explained by quasiparticle interference effects, which are r elated to Andreev bound states. [S0031-9007(98)06969-5].