Injection induced enhancement of supercurrent in a mesoscopic three terminal superconductor semiconductor device

Jonatan Kutchinsky, Rafael Jozef Taboryski, S Jensen, Jørn Bindslev Hansen, Claus Birger Sørensen, Poul Erik Lindelof

Research output: Contribution to journalConference articleResearchpeer-review

Abstract

The studied devices consist of three superconducting (Al) electrodes connected to the same piece of degenerate Semiconductor (n++ GaAs) in a planar geometry. When a current is injected from one of the superconducting electrodes at an injection bias V = Delta (T)/e, the critical supercurrent between the other two superconducting electrodes has a maximum, which persists to temperatures where the equilibrium supercurrent has vanished. Here we report new results on the injection induced AC Josephson effect in these devices. By irradiating the samples with a rf field in the 3 GHz range we observed clear evidence for Shapiro steps also for the non-equilibrium supercurrent.
Original languageEnglish
Book seriesSpringer Proceedings in Physics
Volume87
Pages (from-to)1807-1808
ISSN0930-8989
Publication statusPublished - 2001
EventInternational Conference on the Physics of Semiconductors - OSAKA, JAPAN
Duration: 1 Jan 2000 → …
Conference number: 25th

Conference

ConferenceInternational Conference on the Physics of Semiconductors
Number25th
CityOSAKA, JAPAN
Period01/01/2000 → …

Fingerprint

Dive into the research topics of 'Injection induced enhancement of supercurrent in a mesoscopic three terminal superconductor semiconductor device'. Together they form a unique fingerprint.

Cite this