Spin-splitting in an AlxGa1−xN/GaN nanowire for a quantum-ring interferometer

Abstract

[[abstract]]The authors thank M. H. Gau, C. H. Hsieh, C. C Yang, R. Y. Su, and C. H. Chen for their assistance. The project was supported by National Science Council and Core Facilities Laboratory in Kaohsiung-Pingtung Area, Taiwan. The authors are also grateful to W. C. Mitchel and M. Mah for their help and AFOSR/AOARD, USAF for financial support under Grant No. FA4869-07-1-4022.[[abstract]]An Al0.18 Ga0.82 N/GaN heterostructure was used to fabricate a ballistic nanowire with a wire width of 200 nm by focused ion beam. We observed the beating Shubnikov-de Haas oscillations in the nanowire with a spin-splitting energy of (2.4±0.3) meV. Based on the results, we proposed a spin-Hall quantum-ring interferometer made of Alx Ga1-x N/GaN nanowires for spintronic applications. © 2008 American Institute of Physics.[[booktype]]紙