Paramagnetic spin pumping

Y. Shiomi; E. Saitoh

doi:10.1103/PhysRevLett.113.266602

Paramagnetic spin pumping

Y. Shiomi, E. Saitoh

Research output: Contribution to journal › Article › peer-review

37 Citations (Scopus)

Abstract

We have demonstrated spin pumping from a paramagnetic state of an insulator La2NiMnO6 into a Pt film. Single-crystalline films of La2NiMnO6 which exhibit a ferromagnetic order at TC≈270K were grown by pulsed laser deposition. The inverse spin Hall voltage induced by spin-current injection has been observed in the Pt layer not only in the ferromagnetic phase of La2NiMnO6, but also in a wide temperature range above TC. The efficient spin pumping in the paramagnetic phase is ascribable to ferromagnetic correlation, not to ferromagnetic order.

Original language	English
Article number	266602
Journal	Physical review letters
Volume	113
Issue number	26
DOIs	https://doi.org/10.1103/PhysRevLett.113.266602
Publication status	Published - 2014 Dec 23

ASJC Scopus subject areas

Physics and Astronomy(all)

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AB - We have demonstrated spin pumping from a paramagnetic state of an insulator La2NiMnO6 into a Pt film. Single-crystalline films of La2NiMnO6 which exhibit a ferromagnetic order at TC≈270K were grown by pulsed laser deposition. The inverse spin Hall voltage induced by spin-current injection has been observed in the Pt layer not only in the ferromagnetic phase of La2NiMnO6, but also in a wide temperature range above TC. The efficient spin pumping in the paramagnetic phase is ascribable to ferromagnetic correlation, not to ferromagnetic order.

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Paramagnetic spin pumping

Abstract

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