Thermoelectric properties of a correlated polar single molecular transistor in the presence of a magnetic field and dissipation

Le résumé fourni par la source

The spin Seebeck effect is investigated in a correlated polar single molecular transistor in the presence of dissipation and a magnetic field . The Anderson-Holstein-Caldeira-Leggett model is used to study the heat transport characteristics of the system. Assuming the phonons to be in the coherent state, the effective electronic Hamiltonian is solved using the Keldysh method. The spectral function, conductance, spin Seebeck effect , and spin-polarized current densities are calculated. As the magnetic field increases, the charge conductance splits into two symmetric peaks, while the spin conductance separates into two antisymmetric peaks. In the absence of a magnetic field, only the charge conductance and Seebeck coefficient are maximum, while the spin conductance and spin Seebeck coefficient remain zero. However, as the magnetic field increases, both spin conductance and spin Seebeck coefficient undergo an enhancement. We also observe a substantial enhancement in the thermopower with the increase in the electron-phonon coupling.

Ce résumé expose les affirmations des auteurs. BNTIC ne l’interprète pas comme une validation indépendante des résultats.