Evaluation valuation of Anisotropy Field and g-factor of c-plane Oriented CoPtCr Alloy Film Using Q-band Ferromagnetic Resonance
Evaluation valuation of Anisotropy Field and g-factor of c-plane Oriented CoPtCr Alloy Film Using Q-band Ferromagnetic Resonance
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利用Q带铁磁共振评估c面取向CoPtCr合金薄膜的各向异性场和g因子
DOI：
10.3379/msjmag.1003r048
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发表时间：
2010
影响因子：
--
通讯作者：
M. Takahashi
中科院分区：
文献类型：
--
作者：
Shintaro Hinata;S. Saito;M. Takahashi
利用Q波段（~ 34 GHz）铁磁共振（FMR）技术，对C面取向CoPtCr合金薄膜的单轴磁各向异性场Hk和g因子进行了定量研究.采用φ 2 mm的Macor保持器，实现了相位匹配，降低了信号的背景，并使外场精确地平行于膜法线或面内，获得了高信噪比的FMR信号。一个外部场垂直或水平地施加到膜，并且在测量期间保持单个磁畴。测量的FMR信号表明：1）对于Co含量为75-90 at.%的CoPtCr薄膜，Hk和g因子可以同时导出，2)当Co含量从85 at.%降低到65 at.%时，g因子从2.11增加到2.19并且Cr含量从5原子%增加到20原子%。
The uniaxial magnetic anisotropy field, Hk, and g-factor of a c-plane oriented CoPtCr alloy film was quantitatively evaluated by using Q-band (∼34 GHz) ferromagnetic resonance (FMR). An FMR signal with a high signal-to-noise ratio was successfully obtained by using a 2mmφ-Macor holder, which achieves phase matching, a decrease in the background of the signal, and accurate alignment of the external field parallel to the film normal or in-plane. An external field was applied perpendicularly or horizontally to the film, and a single magnetic domain was maintained during the measurements. The measured FMR signals demonstrated that 1) the Hk and g-factor were simultaneously derived for CoPtCr films with Co 75-90 at.%, 2) the magnitude of Hk was supported by that obtained with a Torque magnetometer, and 3) the g-factor increased from 2.11 to 2.19 when Co content was decreased from 85 to 65 at.% and the Cr content was increased from 5 to 20 at.%.
影响因子：
2.1
作者：
Wang, JP;Shen, WK;Bai, JM
通讯作者：
Bai, JM
DOI：
--
发表时间：
2008
期刊：
IEEE Transactions on Magnetics 44
影响因子：
--
作者：
K. Yoshida
通讯作者：
K. Yoshida