TY - JOUR
T1 - Modification of the magnetization dynamics of a NiFe nanodot due to thermal spin injection
AU - Asam, Nagarjuna
AU - Yamanoi, Kazuto
AU - Kimura, Takashi
N1 - Funding Information:
This work is partially supported by the Grant-in-Aid for Scientific Research on Innovative Area, ‘Nano Spin Conversion Science’ (26103002), Scientific Research (S)(25220605), Marubun Foundation and JSPS Strategic Young Researcher Overseas Visits Program for Accelerating Brain Circulation.
Publisher Copyright:
© 2018 IOP Publishing Ltd.
PY - 2018/5/10
Y1 - 2018/5/10
N2 - An array of NiFe nanodots has been prepared on a Cu/CoFeAl film. Since a thermal spin current is expected to be excited owing to a large spin-dependent Seebeck coefficient for the CoFeAl, we investigate the magnetization dynamics of the NiFe dots under the temperature gradient along the vertical direction. By using vector network analyzer measurements, we have demonstrated that the temperature gradient produces modulations of the frequency of ferromagnetic resonance and the linewidth of the resonance spectra. The observed parabolic dependences are well explained by the damping-like and field-like components of spin transfer torque.
AB - An array of NiFe nanodots has been prepared on a Cu/CoFeAl film. Since a thermal spin current is expected to be excited owing to a large spin-dependent Seebeck coefficient for the CoFeAl, we investigate the magnetization dynamics of the NiFe dots under the temperature gradient along the vertical direction. By using vector network analyzer measurements, we have demonstrated that the temperature gradient produces modulations of the frequency of ferromagnetic resonance and the linewidth of the resonance spectra. The observed parabolic dependences are well explained by the damping-like and field-like components of spin transfer torque.
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U2 - 10.1088/1361-6463/aabf2a
DO - 10.1088/1361-6463/aabf2a
M3 - Article
AN - SCOPUS:85047188977
VL - 51
JO - Journal Physics D: Applied Physics
JF - Journal Physics D: Applied Physics
SN - 0022-3727
IS - 22
M1 - 224004
ER -