Thermo-spin effects in quantum dots connected to ferromagnetic leads

By Y. Dubi, M. Di Ventra. 2008

145 citations recorded by the source corpus.

We study a system composed of a quantum dot in contact with ferromagnetic leads held at different temperatures. Spin analogs to the thermopower and thermoelectric figure of merit are defined and studied as a function of junction parameters. It is shown that in contrast to bulk ferromagnets, the spin-thermopower coefficient in a junction can be as large as the Seebeck coefficient, resulting in a large spin figure of merit. In addition, it is demonstrated that the junction can be tuned to supply only spin current but no charge current. We also discuss experimental systems where our predictions can be verified.

Subfields: Atomic and Molecular Physics, and Optics, Materials Chemistry

View Paper: https://www.semanticscholar.org/paper/2274e51279f0db771245ed41a43e98174a153591

Citations in the corpus

• Thermally driven spin injection from a ferromagnet into a non-magnetic metal (2010, unknown): “Owing to experimental difficulties in controlling heat flows it was only very recently that thermoelectric spintronics was investigate”