Proposal for a local heating driven spin current generator

Hwang, S.-Y.; Lim, J. S.; Lopez, R.; Lee, M.; Sanchez, D.
Applied Physics Letters 103, 172401 (1-3) (2013)

We propose a two-terminal spin-orbit interferometer with a hot molecule inserted in one of its arms to generate pure spin currents. Local heating is achieved by coupling the vibrational modes of the molecule to a third (phononic) reservoir. We show that this spin caloritronic effect is due to the combined influence of spin-dependent wave interference and inelastic scattering. Remarkably, the device converts heat flow into spin-polarized current even without applying any voltage or temperature difference to the electronic terminals.

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