Mechanism for large thermoelectric power in molecular quantum dots described by the negative-U Anderson model (CROSBI ID 180721)
Prilog u časopisu | izvorni znanstveni rad | međunarodna recenzija
Podaci o odgovornosti
Andergassen, Sabine ; Costi, Theo ; Zlatić, Veljko
engleski
Mechanism for large thermoelectric power in molecular quantum dots described by the negative-U Anderson model
We investigate, with the aid of numerical renormalization group techniques, the thermoelectric properties of a molecular quantum dot described by the negative-U Anderson model. We show that the charge Kondo effect provides a mechanism for enhanced thermoelectric power via a correlation-induced asymmetry in the spectral function close to the Fermi level. We show that this effect results in a dramatic enhancement of the Kondo-induced peak in the thermopower of negative-U systems with Seebeck coefficients exceeding 50 μV/K over a wide range of gate voltages.
tThermoelectric power; molecular quantum dots; negative-U Anderson model
nije evidentirano
nije evidentirano
nije evidentirano
nije evidentirano
nije evidentirano
nije evidentirano
Podaci o izdanju
84 (24)
2011.
1107-1-1107-4
objavljeno
1098-0121
10.1103/PhysRevB.84.241107