Tuning of the Magnetic Damping Parameter by Varying Cr Composition in Fe_1-xCr_x Alloy
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Mao Yang,
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Xianyang Lu,
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Bo Liu,
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Xuezhong Ruan,
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Junran Zhang,
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Xiaoqian Zhang,
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Dawei Huang,
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Jing Wu,
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Jun Du,
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Bo Liu,
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Hao Meng,
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Liang He,
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Yongbing Xu
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Abstract
We investigate the magnetic damping parameter of Fe_1-xCr_x thin films using the time-resolved magneto-optical Kerr effect technique. It is demonstrated that the overall effective damping parameter is enhanced with the increasing Cr concentration. The effective damping at high field \alpha_0 is found to be significantly enhanced when increasing the Cr concentration with the \alpha_0=0.159 in the Fe_45Cr_55 enhanced by 562% compared with that of \alpha_0=0.024 in the pure Fe film. This study provides a new approach of controlling the effective damping parameter with a desired magnitude via varying Cr composition.
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Cite this article:
Mao Yang, Xianyang Lu, Bo Liu, Xuezhong Ruan, Junran Zhang, Xiaoqian Zhang, Dawei Huang, Jing Wu, Jun Du, Bo Liu, Hao Meng, Liang He, Yongbing Xu. Tuning of the Magnetic Damping Parameter by Varying Cr Composition in Fe$_{1-x}$Cr$_x$ Alloy[J].
Chin. Phys. Lett., 2020, 37(10): 107502.
DOI: 10.1088/0256-307X/37/10/107502
Mao Yang, Xianyang Lu, Bo Liu, Xuezhong Ruan, Junran Zhang, Xiaoqian Zhang, Dawei Huang, Jing Wu, Jun Du, Bo Liu, Hao Meng, Liang He, Yongbing Xu. Tuning of the Magnetic Damping Parameter by Varying Cr Composition in Fe$_{1-x}$Cr$_x$ Alloy[J]. Chin. Phys. Lett., 2020, 37(10): 107502. DOI: 10.1088/0256-307X/37/10/107502
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Mao Yang, Xianyang Lu, Bo Liu, Xuezhong Ruan, Junran Zhang, Xiaoqian Zhang, Dawei Huang, Jing Wu, Jun Du, Bo Liu, Hao Meng, Liang He, Yongbing Xu. Tuning of the Magnetic Damping Parameter by Varying Cr Composition in Fe$_{1-x}$Cr$_x$ Alloy[J]. Chin. Phys. Lett., 2020, 37(10): 107502. DOI: 10.1088/0256-307X/37/10/107502
Mao Yang, Xianyang Lu, Bo Liu, Xuezhong Ruan, Junran Zhang, Xiaoqian Zhang, Dawei Huang, Jing Wu, Jun Du, Bo Liu, Hao Meng, Liang He, Yongbing Xu. Tuning of the Magnetic Damping Parameter by Varying Cr Composition in Fe$_{1-x}$Cr$_x$ Alloy[J]. Chin. Phys. Lett., 2020, 37(10): 107502. DOI: 10.1088/0256-307X/37/10/107502
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