To the top

Page Manager: Webmaster
Last update: 9/11/2012 3:13 PM

Tell a friend about this page
Print version

Nonreciprocal spin pumpin… - University of Gothenburg, Sweden Till startsida
Sitemap
To content Read more about how we use cookies on gu.se

Nonreciprocal spin pumping damping in asymmetric magnetic trilayers

Journal article
Authors Y. Pogoryelov
M. Pereiro
S. Jana
A. Kumar
S. Akansel
Mojtaba Ranjbar
D. Thonig
D. Primetzhofer
P. Svedlindh
Johan Åkerman
O. Eriksson
O. Karis
D. A. Arena
Published in Physical Review B
Volume 101
Issue 5
Pages 9
ISSN 2469-9950
Publication year 2020
Published at Department of Physics (GU)
Pages 9
Language en
Links dx.doi.org/10.1103/PhysRevB.101.054...
Keywords relaxation, insulator, emission, films, Materials Science, Physics
Subject categories Physical Sciences

Abstract

In magnetic trilayer systems, spin pumping is generally addressed as a reciprocal mechanism characterized by one unique spin-mixing conductance common to both interfaces. However, this assumption is questionable in cases where different types of interfaces are present. Here, we present a general theory for analyzing spin pumping in cases with more than one unique interface and where the magnetic coupling is allowed to be noncollinear. The theory is applied to analyze layer-resolved ferromagnetic resonance experiments on the trilayer system Ni80Fe20/Ru/Fe49Co49V2 where the Ru spacer thickness is varied to tune the indirect exchange coupling. It is demonstrated that the equation of motion of macrospins driven by spin pumping need to be modified in case of noncollinear coupling. Our analysis also shows that the spin pumping in trilayer systems with dissimilar magnetic layers, in general, is nonreciprocal.

Page Manager: Webmaster|Last update: 9/11/2012
Share:

The University of Gothenburg uses cookies to provide you with the best possible user experience. By continuing on this website, you approve of our use of cookies.  What are cookies?