Spin-dependent transport through a double dot system

• Autorzy: Lipiński S. , Bułka B. R. , Krychowski D.
• Języki publikacji: EN

Abstrakty

EN

The coherent transport through a set of two capacitively coupled quantum dots placed in a magnetic field and coupled to ferromagnetic electrodes is considered in the limit of infinite intra- and interdot interactions. The densities of states are calculated in an approximation that favours separate fluctuations of spin, orbital isospin, and simultaneous fluctuations of both of them. Apart from the Kondo peak, satellite many-body peaks are also found in the densities of states. Their positions and weights depend on the magnetic field and polarization of electrodes. This is reflected in the spin dependence of conductance remarkably varying for the voltage bias corresponding to the peak positions.

Słowa kluczowe

EN

electronic transport; nanoscopic systems; Kondo effect

• Wydawca: De Gruyter
• Czasopismo: Materials Science Poland
• Rocznik: 2004
• Tom: Vol. 22, No. 4
• Strony: 513--522
• Opis fizyczny: Bibliogr. 10 poz.

Twórcy

autor

Lipiński S.

• Institute of Molecular Physics, Polish Academy of Sciences, ul. M. Smoluchowskiego17, 60-179 Poznań, Poland

autor

Bułka B. R.

• Institute of Molecular Physics, Polish Academy of Sciences, ul. M. Smoluchowskiego17, 60-179 Poznań, Poland

autor

Krychowski D.

• Institute of Molecular Physics, Polish Academy of Sciences, ul. M. Smoluchowskiego17, 60-179 Poznań, Poland

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