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Weak (anti)localization in tubular semiconductor nanowires with spin-orbit coupling
Kammermeier, Michael, Wenk, Paul
, Schliemann, John, Heedt, Sebastian
and Schäpers, Thomas
(2016)
Weak (anti)localization in tubular semiconductor nanowires with spin-orbit coupling.
Phys. Rev. B 93, p. 205306.
Date of publication of this fulltext: 25 Nov 2016 08:27
Article
DOI to cite this document: 10.5283/epub.34877
Abstract
We compute analytically the weak (anti) localization correction to the Drude conductivity for electrons in tubular semiconductor systems of zinc-blende type. We include linear Rashba and Dresselhaus spin-orbit coupling (SOC) and compare wires of standard growth directions < 100 >, < 111 >, and < 110 >. The motion on the quasi-two-dimensional surface is considered diffusive in both directions: ...
We compute analytically the weak (anti) localization correction to the Drude conductivity for electrons in tubular semiconductor systems of zinc-blende type. We include linear Rashba and Dresselhaus spin-orbit coupling (SOC) and compare wires of standard growth directions < 100 >, < 111 >, and < 110 >. The motion on the quasi-two-dimensional surface is considered diffusive in both directions: transversal as well as along the cylinder axis. It is shown that Dresselhaus and Rashba SOC similarly affect the spin relaxation rates. For the < 110 > growth direction, the long-lived spin states are of helical nature. We detect a crossover from weak localization to weak antilocalization depending on spin-orbit coupling strength as well as dephasing and scattering rate. The theory is fitted to experimental data of an undoped < 111 > InAs nanowire device which exhibits a top-gate-controlled crossover from positive to negative magnetoconductivity. Thereby, we extract transport parameters where we quantify the distinct types of SOC individually.
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| Item type | Article | ||||
| Journal or Publication Title | Phys. Rev. B | ||||
| Publisher: | AMER PHYSICAL SOC | ||||
|---|---|---|---|---|---|
| Place of Publication: | COLLEGE PK | ||||
| Volume: | 93 | ||||
| Page Range: | p. 205306 | ||||
| Date | May 2016 | ||||
| Institutions | Physics > Institute of Theroretical Physics Physics > Institute of Theroretical Physics > Chair Professor Grifoni > Group John Schliemann Physics > Institute of Theroretical Physics > Alumni or Retired Professors > Group Thomas Niehaus Physics > Institute of Theroretical Physics > Chair Ferdinand Evers | ||||
| Identification Number |
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| Keywords | 2D ELECTRON-GAS; INAS NANOWIRES; QUANTUM-WELLS; MAGNETORESISTANCE; ANTILOCALIZATION; HETEROSTRUCTURES; GROWTH; RINGS; FIELD; GAAS; | ||||
| Dewey Decimal Classification | 500 Science > 530 Physics 500 Science > 530 Physics | ||||
| Status | Published | ||||
| Refereed | Yes, this version has been refereed | ||||
| Created at the University of Regensburg | Yes | ||||
| URN of the UB Regensburg | urn:nbn:de:bvb:355-epub-348776 | ||||
| Item ID | 34877 |
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