Thermoelectric effect of multiferroic oxide interfaces

Abstract

We investigate the thermoelectric properties of electrons at the interface of oxide heterostructure and in the presence of a multiferroic oxide with spiral spin order. We find there is no (spin) Hall current generated by the temperature gradient. A Seebeck effect is however present. Due to the magnetoelectric coupling, the charge and thermal conductivities are electrically controllable via the spin spiral helicity. Moreover, the thermopower exhibits a sign change when tuning electro-statically the carrier density.

References in corpus (9)

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Cited by in corpus (3)

• Helical multiferroics for electric field controlled quantum information processing
• Anisotropic thermoelectric effect in helimagnetic tunnel junctions
• Electron spin diffusion at the interface of multiferroic oxides