Danneau, R;
Klochan, O;
Clarke, WR;
Ho, LH;
Micolich, AP;
Simmons, MY;
Hamilton, AR;
... Ritchie, DA; + view all
(2008)
0.7 structure and zero bias anomaly in ballistic hole quantum wires.
PHYS REV LETT
, 100
(1)
, Article 016403. 10.1103/PhysRevLett.100.016403.
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Abstract
We study the anomalous conductance plateau around G=0.7(2e(2)/h) and the zero bias anomaly in ballistic hole quantum wires with respect to in-plane magnetic fields applied parallel B-parallel to and perpendicular B-perpendicular to to the quantum wire. As seen in electron quantum wires, the magnetic fields shift the 0.7 structure down to G=0.5(2e(2)/h) and simultaneously quench the zero bias anomaly. However, these effects are strongly dependent on the orientation of the magnetic field, owing to the highly anisotropic effective Lande g-factor g(*) in hole quantum wires. Our results highlight the fundamental role that spin plays in both the 0.7 structure and zero bias anomaly.
| Type: | Article |
|---|---|
| Title: | 0.7 structure and zero bias anomaly in ballistic hole quantum wires |
| Open access status: | An open access version is available from UCL Discovery |
| DOI: | 10.1103/PhysRevLett.100.016403 |
| Publisher version: | http://dx.doi.org/10.1103/PhysRevLett.100.016403 |
| Language: | English |
| Additional information: | © 2008 The American Physical Society |
| Keywords: | DIMENSIONAL ELECTRON-GAS, POINT CONTACTS, CONDUCTANCE, TRANSPORT |
| 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/1314474 |
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