Thermoelectric transport through a T-shaped DQD connected to ferromagnetic and superconducting electrodes | Zendy

Li Xu | Zendy; Zhi-Jian Li | Zendy; Qiang Wang | Zendy; Yi-Hang Nie | Zendy

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Thermoelectric transport through a T-shaped DQD connected to ferromagnetic and superconducting electrodes

Author(s) -

Li Xu,

Zhi-Jian Li,

Qiang Wang,

Yi-Hang Nie

Publication year - 2016

Publication title -

aip advances

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.421

H-Index - 58

ISSN - 2158-3226

DOI - 10.1063/1.4971844

Subject(s) - condensed matter physics , thermoelectric effect , ferromagnetism , superconductivity , asymmetry , quantum tunnelling , materials science , electrode , non equilibrium thermodynamics , physics , thermodynamics , quantum mechanics

We theoretically analyze the properties of thermoelectric transport through a T-shaped DQD connected to ferromagnetic and superconducting electrodes by means of nonequilibrium Green function formalism. The influences of the superconducting gap, interdot tunneling coupling and asymmetry parameter on the thermoelectric properties are discussed. The large thermoelectric efficiency can be obtained by choosing small polarization of ferromagnetic electrode, small asymmetry parameter (<1), appropriately large gap and appropriately interdot coupling, which can be used as the optimal schemes for obtaining high thermoelectric efficiency in the device

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