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Zeeman splitting in ballistic hole quantum wires

Danneau, R; Klochan, O; Clarke, WR; Ho, LH; Micolich, AP; Simmons, MY; Hamilton, AR; ... Zulicke, U; + view all (2006) Zeeman splitting in ballistic hole quantum wires. PHYS REV LETT , 97 (2) , Article 026403. 10.1103/PhysRevLett.97.026403. Green open access

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Abstract

We have studied the Zeeman splitting in ballistic hole quantum wires formed in a (311)A quantum well by surface gate confinement. Transport measurements clearly show lifting of the spin degeneracy and crossings of the subbands when an in-plane magnetic field B is applied parallel to the wire. When B is oriented perpendicular to the wire, no spin splitting is discernible up to B=8.8 T. The observed large Zeeman splitting anisotropy in our hole quantum wires demonstrates the importance of quantum confinement for spin splitting in nanostructures with strong spin-orbit coupling.

Type: Article
Title: Zeeman splitting in ballistic hole quantum wires
Open access status: An open access version is available from UCL Discovery
DOI: 10.1103/PhysRevLett.97.026403
Publisher version: http://dx.doi.org/10.1103/PhysRevLett.97.026403
Language: English
Additional information: © 2006 The American Physical Society
Keywords: ONE-DIMENSIONAL CONSTRICTION, ELECTRON-GAS, CONDUCTANCE, FIELD
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/1314431
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