Anomalous Beating Pattern in Wurtzite Al$_{x}$Ga$_{1-x}$N/GaN Heterostructures

ORAL

Abstract

We have confirmed the $k$-dependent spin splitting in wurtzite Al$_{x}$Ga$_{1-x}$N/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 value k is attributed to Dresselhaus term which is enhanced by the $\Delta _{C1}-\Delta _{C3}$ coupling of wurtzite band folding effect.

–

Authors

  • Wan-Tsang Wang

    Dept. of Physics, NSYSU, Kaohsiung, Taiwan and Research Center for Applied Sciences Academia Sinica, Taipei, Taiwan

  • Ikai Lo

  • M.H. Gao

  • Y.L. Chen

  • Jih-Chen Chiang

    Department of Physisc, Center for Nanoscience and Nanotechnology, National Sun Yat-Sen University, Kaohsiung, Taiwan, Republic of China