Gigantic enhancement of spin Seebeck effect by phonon drag

By Hiroto Adachi, Ken-ichi Uchida, Eiji Saitoh, J. Ohe, S. Takahashi, Sadamichi Maekawa. 2010

136 citations recorded by the source corpus.

We investigate both theoretically and experimentally a gigantic enhancement of the spin Seebeck effect in a prototypical magnet LaY2Fe5O12 at low temperatures. Our theoretical analysis sheds light on the important role of phonons; the spin Seebeck effect is enormously enhanced by nonequilibrium phonons that drag the low-lying spin excitations. We further argue that this scenario gives a clue to understand the observation of the spin Seebeck effect that is unaccompanied by a global spin current, and predict that the substrate condition affects the observed signal.

Subfields: Atomic and Molecular Physics, and Optics, Electronic, Optical and Magnetic Materials

View Paper: https://www.semanticscholar.org/paper/24f7d20eb181eb3e53478b864bfdec372750b3f4

How researchers see this paper

The researchers whose trusted networks rank it highest, strongest advocate first. Every researcher gets a different order.

In Atomic and Molecular Physics, and Optics

1. Ken-ichi Uchida
2. Eiji Saitoh
3. Takashi Kikkawa
4. Yuki Shiomi
5. S. Daimon
6. Z. Qiu
7. Axel Hoffmann

Citations in the corpus

• Critical suppression of spin Seebeck effect by magnetic fields (2015, background): “developed linear-response theories of the magnon- and phonon-mediated SSEs [44–46].”