Dissemin is shutting down on January 1st, 2025

Published in

EPL Association, European Physical Society Letters, 6(93), p. 67005

DOI: 10.1209/0295-5075/93/67005

Links

Tools

Export citation

Search in Google Scholar

Focused Crossed Andreev Reflection

Journal article published in 2010 by Håvard Haugen ORCID, Arne Brataas ORCID, Xavier Waintal, Gerrit E. W. Bauer
This paper is available in a repository.
This paper is available in a repository.

Full text: Download

Red circle
Preprint: archiving forbidden
Orange circle
Postprint: archiving restricted
Upload
Red circle
Published version: archiving forbidden
Policy details
Data provided by SHERPA/RoMEO

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.