Currents along ring arms with quantum dots: Kondo and Aharonov–Bohm effects

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• 作者：Maria A. Davidovich ; V.M. Apel ; E.V. Anda ; G. Chiappe
• 关键词：Double-dot ; Transport properties ; Kondo and Aharonov effects
• 刊名：Journal of Magnetism and Magnetic Materials
• 出版年：2008
• 期刊代码：31_03048853
• 类别：ph
• 出版时间：July 2008
• 卷：320
• 期：14
• 页码：e246-e248
• 文件大小：181 K

摘要

Transport properties of a double-dot system in a ring structure threaded by a magnetic flux are studied. The Aharonov–Bohm effect combined with the charging effects of the dots in the Kondo regime determines the phases of the currents going through each arm of the ring. Depending upon the magnetic flux and the state of charge of the dots, controlled by gate potentials, current circulates around the ring.