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Weak (anti)localization in tubular semiconductor nanowires with spin-orbit coupling
Kammermeier, Michael, Wenk, Paul
, Schliemann, John, Heedt, Sebastian
und Schäpers, Thomas
(2016)
Weak (anti)localization in tubular semiconductor nanowires with spin-orbit coupling.
Phys. Rev. B 93, S. 205306.
Veröffentlichungsdatum dieses Volltextes: 25 Nov 2016 08:27
Artikel
DOI zum Zitieren dieses Dokuments: 10.5283/epub.34877
Zusammenfassung
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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| Dokumentenart | Artikel | ||||
| Titel eines Journals oder einer Zeitschrift | Phys. Rev. B | ||||
| Verlag: | AMER PHYSICAL SOC | ||||
|---|---|---|---|---|---|
| Ort der Veröffentlichung: | COLLEGE PK | ||||
| Band: | 93 | ||||
| Seitenbereich: | S. 205306 | ||||
| Datum | Mai 2016 | ||||
| Institutionen | Physik > Institut für Theoretische Physik Physik > Institut für Theoretische Physik > Lehrstuhl Professor Grifoni > Arbeitsgruppe John Schliemann Physik > Institut für Theoretische Physik > Entpflichtete oder im Ruhestand befindliche Professoren > Arbeitsgruppe Thomas Niehaus Physik > Institut für Theoretische Physik > Lehrstuhl Ferdinand Evers | ||||
| Identifikationsnummer |
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| Stichwörter / Keywords | 2D ELECTRON-GAS; INAS NANOWIRES; QUANTUM-WELLS; MAGNETORESISTANCE; ANTILOCALIZATION; HETEROSTRUCTURES; GROWTH; RINGS; FIELD; GAAS; | ||||
| Dewey-Dezimal-Klassifikation | 500 Naturwissenschaften und Mathematik > 530 Physik 500 Naturwissenschaften und Mathematik > 530 Physik | ||||
| Status | Veröffentlicht | ||||
| Begutachtet | Ja, diese Version wurde begutachtet | ||||
| An der Universität Regensburg entstanden | Ja | ||||
| URN der UB Regensburg | urn:nbn:de:bvb:355-epub-348776 | ||||
| Dokumenten-ID | 34877 |
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