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Spin-incoherent transport in quantum wires

Hew, WK; Thomas, KJ; Pepper, M; Farrer, I; Anderson, D; Jones, GAC; Ritchie, DA; (2008) Spin-incoherent transport in quantum wires. PHYS REV LETT , 101 (3) , Article 036801. 10.1103/PhysRevLett.101.036801. Green open access

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Abstract

When a quantum wire is weakly confined, a conductance plateau appears at e(2)/h with decreasing carrier density in zero magnetic field accompanied by a gradual suppression of the 2e(2)/h plateau. Applying an in-plane magnetic field B-parallel to does not alter the value of this quantization; however, the e(2)/h plateau weakens with increasing B-parallel to up to 9 T, and then strengthens on further increasing B-parallel to, which also restores the 2e(2)/h plateau. Our results are consistent with spin-incoherent transport in a one-dimensional wire.

Type: Article
Title: Spin-incoherent transport in quantum wires
Open access status: An open access version is available from UCL Discovery
DOI: 10.1103/PhysRevLett.101.036801
Publisher version: http://dx.doi.org/10.1103/PhysRevLett.101.036801
Language: English
Additional information: © 2008 The American Physical Society
Keywords: 2D ELECTRON-GAS, WIGNER CRYSTAL, LUTTINGER-LIQUID, MAGNETIC-FIELD, CONDUCTANCE, HETEROJUNCTION, SUBBANDS
UCL classification: UCL
UCL > Provost and Vice Provost Offices > UCL BEAMS
UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Engineering Science
UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Engineering Science > Dept of Electronic and Electrical Eng
URI: https://discovery.ucl.ac.uk/id/eprint/1314490
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