Temperature dependence of ferromagnetic resonance spectra of permalloy on (Bi1−xSbx)2Te3. (27th December 2017)

• Record Type: Journal Article
• Authors: Gupta, Sachin; Kanai, Shun; Matsukura, Fumihiro; Ohno, Hideo
• Is Part Of: Japanese journal of applied physics. Volume 57:Number 2(2018)
• Publication Date: 2017-12-27
• Subjects: Physics -- Periodicals; 621.05
• DOI: 10.7567/JJAP.57.020302
• Languages: English
• ISSNs: 0021-4922

Abstract

Abstract: We investigate the temperature dependence of ferromagnetic resonance spectra of permalloy (Py: Ni0.80 Fe0.20 ) on (Bi1− x Sb x )2 Te3 with x = 0–1. Smaller resonance fields and broader linewidths are observed for Py/(Bi, Sb)2 Te3 than those for Py/substrate below ∼40 K. The result indicates the presence of the coupling as well as spin pumping at the interface between Py and (Bi, Sb)2 Te3 .