Focused crossed Andreev reflection

H. Haugen, A. Brataas, X. Waintal, G. E.W. Bauer

Research output: Contribution to journalArticle

2 Citations (Scopus)

Abstract

We consider non-local transport mediated by Andreev reflection in a two-dimensional electron gas (2DEG) connected to one superconducting and two normal metal terminals. A robust scheme is presented for observing crossed Andreev reflection (CAR) between the normal metal terminals based on electron focusing by weak perpendicular magnetic fields. At slightly elevated temperatures the CAR signature can be easily distinguished from a background of quantum interference fluctuations. The CAR-induced entanglement between electrons can be switched on and off over large distances by the magnetic field.

Original languageEnglish
Article number67005
JournalEPL
Volume93
Issue number6
DOIs
Publication statusPublished - 2011 Mar 1

ASJC Scopus subject areas

  • Physics and Astronomy(all)

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