Improvement of the yttrium iron garnet/platinum interface for spin pumping-based applications

Author

Lauer, V. ; Jungfleisch, M.B. ; Neb, R. ; Chumak, A.V. ; Hillebrands, B.

Author_Institution

Univ. of Kaiserslautern, Kaiserslautern, Germany

fYear

2014

fDate

26-30 May 2014

Firstpage

109

Lastpage

110

Abstract

The investigation of the spin-pumping efficiency in yttrium iron garnet (YIG)/platinum (Pt) heterostructures revealed a strong dependence on the surface processing of YIG prior to the Pt deposition. A pure spin current was injected into the Pt layer using spin pumping and was consequently transformed into a charge current via the inverse spin Hall effect. The resultant electromotive force was used to calculate the spin-pumping efficiency, which varied by a factor of more then 150 for the different YIG surface treatments.

Keywords

metal-insulator boundaries; platinum; spin Hall effect; surface treatment; yttrium compounds; Pt deposition; Pt layer; Y₃Fe₅O₁₂-Pt; YIC surface treatments; charge current; electromotive force; inverse spin Hall effect; spin current; spin pumping-based applications; spin-pumping eficiency; surface processing; yttrium iron gamet-platinum interface; yttrium iron garnet-platinum heterostructures; Detectors; Insulators; inverse spin Hall effect; spin-pumping efficiency; yttrium iron garnet;

fLanguage

English

Publisher

ieee

Conference_Titel

Oxide Materials for Electronic Engineering (OMEE), 2014 IEEE International Conference on

Conference_Location

Lviv

Print_ISBN

978-1-4799-5960-0

Type

conf

DOI

10.1109/OMEE.2014.6912363

Filename

6912363