TY - JOUR
T1 - Nonlinear power dependence of ferromagnetic resonance in NiFe/Pt/CoFeB trilayer
AU - Yafuso, Minoru
AU - Miyazaki, Keishi
AU - Takayama, Yusei
AU - Obinata, Sora
AU - Kimura, Takashi
N1 - Funding Information:
This work is partially supported by JSPS Grant-in-Aid for Scientific Research (A) (18H03866), that for Grant-in-Aid for Scientific Research (S)(21H05021), that for Challenging Exploratory Research (17H06227) and JST CREST (JPMJCR18J1).
Publisher Copyright:
© 2021 IOP Publishing Ltd.
PY - 2022/1/26
Y1 - 2022/1/26
N2 - The static and dynamic magnetization properties for a NiFe/Pt/CoFeB tri-layered film have been investigated. We find that the two ferromagnetic layers separated by a Pt spacer are ferromagnetically coupled even at room temperature. Moreover, the damping constant for the NiFe layer is found to show the significant enhancement with non-linear power dependence. These unique magnetic features observed in the NiFe layer can be understood by the weak ferromagnetism induced in the Pt spacer between two ferromagnetic layers.
AB - The static and dynamic magnetization properties for a NiFe/Pt/CoFeB tri-layered film have been investigated. We find that the two ferromagnetic layers separated by a Pt spacer are ferromagnetically coupled even at room temperature. Moreover, the damping constant for the NiFe layer is found to show the significant enhancement with non-linear power dependence. These unique magnetic features observed in the NiFe layer can be understood by the weak ferromagnetism induced in the Pt spacer between two ferromagnetic layers.
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U2 - 10.1088/1361-648X/ac26f8
DO - 10.1088/1361-648X/ac26f8
M3 - Article
C2 - 34525466
AN - SCOPUS:85119603038
VL - 34
JO - Journal of Physics Condensed Matter
JF - Journal of Physics Condensed Matter
SN - 0953-8984
IS - 4
M1 - A27
ER -