Title :
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
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;
Conference_Titel :
Oxide Materials for Electronic Engineering (OMEE), 2014 IEEE International Conference on
Conference_Location :
Lviv
Print_ISBN :
978-1-4799-5960-0
DOI :
10.1109/OMEE.2014.6912363
