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Anomalous k-dependent spin splitting in wurtzite AlxGa1-xN/GaN heterostructures
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2007 (English)In: Physical Review B. Condensed Matter and Materials Physics, ISSN 1098-0121, E-ISSN 1550-235X, Vol. 75, no 24Article in journal (Refereed) Published
Abstract [en]

We have observed the k-dependent spin splitting in wurtzite AlxGa1-xN/GaN heterostructures. An anomalous beating pattern was observed in Shubnikov-de Haas measurements due to the interference of Rashba and Dresselhaus spin-orbit interactions. The dominant mechanism for the k-dependent spin splitting at high values of k is attributed to Dresselhaus term which is enhanced by the Delta(C1)-Delta(C3) coupling of wurtzite band folding effect. The interference of Rashba and Dresselhaus effects in the AlxGa1-xN/GaN heterostructure provides a potential candidate for the gate-controlled spin-polarized spintronic devices.

Place, publisher, year, edition, pages
2007. Vol. 75, no 24
Keyword [en]
magneto-oscillation phenomena, 2-dimensional electron-gas, semiconductors, crystals, systems
Identifiers
URN: urn:nbn:se:kth:diva-16738DOI: 10.1103/PhysRevB.75.245307ISI: 000247625000074Scopus ID: 2-s2.0-34347369126OAI: oai:DiVA.org:kth-16738DiVA: diva2:334781
Note
QC 20100525Available from: 2010-08-05 Created: 2010-08-05 Last updated: 2017-12-12Bibliographically approved

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Lourdudoss, Sebastian

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