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

Ikai Lo; Wen-Yuan Pang; Yen-Liang Chen; Yu-Chi Hsu; Jih-Chen Chiang; Wei-Hsin Lin; Wan-Ting Chiu; Jenn-Kai Tsai; Chun-Nan Chen
September 2008
Applied Physics Letters;9/29/2008, Vol. 93 Issue 13, p132114
Academic Journal
An Al0.18Ga0.82N/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 AlxGa1-xN/GaN nanowires for spintronic applications.


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