MULTIPLE ANDREEV REFLECTION IN BURIED HETEROSTRUCTURE - ALLOY SUPERCONDUCTOR DEVICES

Authors
MARSH AM WILLIAMS DA AHMED H
Citation
Am. Marsh et al., MULTIPLE ANDREEV REFLECTION IN BURIED HETEROSTRUCTURE - ALLOY SUPERCONDUCTOR DEVICES, Physica. B, Condensed matter, 203(3-4), 1994, pp. 307-309
Citations number
10
Categorie Soggetti
Physics, Condensed Matter
Journal title
Physica. B, Condensed matter → ACNP
ISSN journal
09214526
Volume
203
Issue
3-4
Year of publication
1994
Pages
307 - 309
Database
ISI
SICI code
0921-4526(1994)203:3-4<307:MARIBH>2.0.ZU;2-E
Abstract
We present the differential resistance characteristics of a two-dimens ional electron gas with alloy superconductor contacts. The response is characteristic of transport by Andreev reflection, and steps are seen in the differential resistance at 20 mK, which are due to multiple An dreev reflection across the device, and which persist to an anomalousl y high magnetic field. Additional structure due to the alloy contacts is also observed.