Tunable supercurrent in a triangular triple quantum dot system

The supercurrent in a triangular triple quantum dot system is investigated by using the nonequilibrium Green's function method. It is found that the sign of the supercurrent can be changed from positive to negative with increasing the strength of spin-flip scattering, resulting in the π-junctio...

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Veröffentlicht in:	Physics letters. A 2010-05, Vol.374 (25), p.2584-2588
Hauptverfasser:	Bai, Long, Zhang, Qingyun, Jiang, Liang, Zhang, Zhengzhong, Shen, R.
Format:	Artikel
Sprache:	eng
Schlagworte:	Electric potential Gates Joining Quantum dot Quantum dots Scattering Solid state physics Supercurrent Tuning Voltage
Online-Zugang:	Volltext
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