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Anomalous k-dependent spin splitting in wurtzite AlxGa1-xN/GaN heterostructures

Ikai Lo·M. H. Gau·J. K. Tsai·Y. L. Chen·Z. J. Chang·W. T. Wang·J. C. Chiang·T. Aggerstam
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Abstract

We have confirmed the k-dependent spin splitting in wurtzite AlxGa1-xN/GaN heterostructures. Anomalous beating pattern in Shubnikov-de Haas measurements arises from 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.

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Ikai Lo, M. H. Gau, J. K. Tsai, Y. L. Chen, Z. J. Chang, W. T. Wang, J. C. Chiang, T. Aggerstam. 2006-11-10. Anomalous k-dependent spin splitting in wurtzite AlxGa1-xN/GaN heterostructures. https://doi.org/10.1103/physrevb.75.245307

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