Roche, P;
Segala, J;
Glattli, DC;
Nicholls, JT;
Pepper, M;
Graham, AC;
Thomas, KJ;
... Ritchie, DA; + view all
(2004)
Fano factor reduction on the 0.7 conductance structure of a ballistic one-dimensional wire.
PHYS REV LETT
, 93
(11)
, Article 116602. 10.1103/PhysRevLett.93.116602.
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Abstract
We have measured the nonequilibrium current noise in a ballistic one-dimensional wire which exhibits an additional conductance plateau at 0.7x2e(2)/h. The Fano factor shows a clear reduction on the 0.7 structure, and eventually vanishes upon applying a strong parallel magnetic field. These results provide experimental evidence that the 0.7 structure is associated with two conduction channels that have different transmission probabilities.
| Type: | Article |
|---|---|
| Title: | Fano factor reduction on the 0.7 conductance structure of a ballistic one-dimensional wire |
| Open access status: | An open access version is available from UCL Discovery |
| DOI: | 10.1103/PhysRevLett.93.116602 |
| Publisher version: | http://dx.doi.org/10.1103/PhysRevLett.93.116602 |
| Language: | English |
| Additional information: | © 2004 The American Physical Society |
| Keywords: | QUANTUM POINT CONTACTS, SCATTERING-THEORY, ELECTRON-GAS, SHOT-NOISE |
| 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/1314395 |
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