Transport Properties of Pure Spin Currents in a Polycrystalline Gd Wire

Author

Nonoguchi, S. ; Ando, Y. ; Yakata, S. ; Kimura, Tomohiro

Author_Institution

Grad. Sch. of Inf. Sci. & Electr. Eng., Kyushu Univ., Fukuoka, Japan

Volume

47

Issue

10

fYear

2011

Firstpage

2750

Lastpage

2752

Abstract

We have investigated the magneto- and spin-current-transport properties in patterned Gd wires in order to understand the interplay between the spin current and the spin entropy. From the magneto-transport measurements, the electrical resistance was found to decrease with decreasing the spin entropy because of the suppression of the spin fluctuation. We also found that the Gd acts as a strong absorber both for the ac and dc pure spin currents from the ferromagnetic resonance and nonlocal spin injection experiments.

Keywords

entropy; ferromagnetic resonance; gadolinium; galvanomagnetic effects; spin fluctuations; spin polarised transport; Gd; electrical resistance; ferromagnetic resonance; magneto-transport properties; nonlocal spin injection; patterned Gd wires; polycrystalline Gd wire; pure spin currents; spin entropy; spin fluctuation suppression; spin-current-transport properties; Copper; Damping; Entropy; Magnetic resonance; Magnetic resonance imaging; Resistance; Wires; Ferromagnetic resonance; magnetocaloric effect; spin current; spin entropy; spin injection; spin pumping;

fLanguage

English

Journal_Title

Magnetics, IEEE Transactions on

Publisher

ieee

ISSN

0018-9464

Type

jour

DOI

10.1109/TMAG.2011.2158407

Filename

6027722