Spin-polarized Transport through Double Quantum Dots(Condensed Matter : Electronic Structure, Electrical, Magnetic and Optical Properties)
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概要
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We investigate spin-polarized transport phenomena through double quantum dots coupled to ferromagnetic leads in series. By means of the slave-boson mean-field approximation, we calculate the conductance in the Kondo regime for two different configurations of the leads: spin-polarization of two ferromagnetic leads is parallel or anti-parallel. It is found that transport shows some remarkable properties depending on the tunneling strength between two dots. These properties are explained in terms of the Kondo resonances in the local density of states.
- 社団法人日本物理学会の論文
- 2004-10-15
著者
-
Kawakami Norio
Department Of Applied Physics Osaka University
-
Tanaka Yoichi
Department Of Applied Physics Osaka University
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