TY - JOUR
T1 - Observation of Gyromagnetic Spin Wave Resonance in NiFe Films
AU - Kurimune, Yuki
AU - Matsuo, Mamoru
AU - Nozaki, Yukio
N1 - Funding Information:
This work was partially supported by JST CREST Grant No. JPMJCR19J4, Japan, JSPS KAKENHI Grant No. JP18H03867, and M.M. was partially supported by the Priority Program of Chinese Academy of Sciences Grant No. XDB28000000.
Funding Information:
This work was partially supported by JST CREST Grant No. JPMJCR19J4, Japan, JSPS KAKENHI Grant No. JP18H03867, and M. M. was partially supported by the Priority Program of Chinese Academy of Sciences Grant No. XDB28000000.
Publisher Copyright:
© 2020 American Physical Society.
PY - 2020/5/29
Y1 - 2020/5/29
N2 - This Letter demonstrates spin wave resonance (SWR) owing to the gyromagnetic effect by propagating a Rayleigh-type surface acoustic wave (R-SAW) through ferromagnetic thin films. The SWR amplitude in a NiFe film shows a higher-order frequency variation than in a magnetoelastic Ni film. This frequency dependence is well understood in terms of the presence of a gyromagnetic field attributable to the local lattice rotation in the R-SAW. From the frequency dependence of the SWR amplitude, the gyromagnetic SWR could be separated from another SWR caused by a magnetoelastic effect of the ferromagnet.
AB - This Letter demonstrates spin wave resonance (SWR) owing to the gyromagnetic effect by propagating a Rayleigh-type surface acoustic wave (R-SAW) through ferromagnetic thin films. The SWR amplitude in a NiFe film shows a higher-order frequency variation than in a magnetoelastic Ni film. This frequency dependence is well understood in terms of the presence of a gyromagnetic field attributable to the local lattice rotation in the R-SAW. From the frequency dependence of the SWR amplitude, the gyromagnetic SWR could be separated from another SWR caused by a magnetoelastic effect of the ferromagnet.
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U2 - 10.1103/PhysRevLett.124.217205
DO - 10.1103/PhysRevLett.124.217205
M3 - Article
C2 - 32530648
AN - SCOPUS:85085841337
SN - 0031-9007
VL - 124
JO - Physical review letters
JF - Physical review letters
IS - 21
M1 - 21720517205
ER -