By Topic

Spin Pumping Induced Inverse Spin-Hall Effects in {\rm La}_{0.7}{\rm Sr}_{0.3}{\rm MnO}_{3} /Platinum Bilayer Film

Sign In

Cookies must be enabled to login.After enabling cookies , please use refresh or reload or ctrl+f5 on the browser for the login options.

Formats Non-Member Member
$31 $13
Learn how you can qualify for the best price for this item!
Become an IEEE Member or Subscribe to
IEEE Xplore for exclusive pricing!
close button

puzzle piece

IEEE membership options for an individual and IEEE Xplore subscriptions for an organization offer the most affordable access to essential journal articles, conference papers, standards, eBooks, and eLearning courses.

Learn more about:

IEEE membership

IEEE Xplore subscriptions

8 Author(s)
Luo, G.Y. ; Center for Condensed Matter Sci., Nat. Taiwan Univ., Taipei, Taiwan ; Song, M.Y. ; Hung, H.Y. ; Chiu, Y.C.
more authors

Ferromagnetic/paramagnetic bilayer systems have been used to investigate inverse spin-Hall effect (ISHE) extensively with the technique of spin-pumping which is based on a mechanism driving the spin moment from ferromagnetic layers into paramagnetic layers via the ferromagnetic resonance procession. When the spin current is induced in the paramagnetic layer, a transversal electrical potential difference is generated and can be measured. Among many, platinum is the most effective paramagnetic metal with a strong inverse spin-Hall effect due to its strong spin-orbit coupling. In this work, we study ISHE in two kinds of bilayer films, Ni81Fe19(Py)/Pt and La0.7Sr0.3MnO3(LSMO)/Pt. Our experimental results show that the voltage induced by ISHE in LSMO/Pt ( ~ 1.0 μV) is one order smaller than that Py/Pt ( ~ 10 μV) at 100 mW of microwave power, despite the fact that LSMO has much higher spin polarization than Py. Based on our fitting results, the reason for the reduction of spin-pumping effect in LSMO/Pt may be the strong anomalous Hall Effect in LSMO.

Published in:

Magnetics, IEEE Transactions on  (Volume:48 ,  Issue: 11 )