Beneficial effect of rapid recurrent thermal annealing on magnetic properties of SmCo-based films |
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| Authors: | Long Peng Huaiwu Zhang Yingli Liu John Q. Xiao |
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| Affiliation: | 1. State Key Laboratory of Electronic Thin Films and Integrated Devices, University of Electronic Science and Technology of China, Chengdu 610054, China;2. Department of Physics and Astronomy, University of Delaware, Newark, DE 19716, USA |
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| Abstract: | The effects of conventional thermal annealing (CTA) and rapid recurrent thermal annealing (RRTA) on the magnetic properties of the SmCo-based films were investigated. The results show that the CTA-treated films exhibit amorphous structure with coercivity insensitively depending on annealing parameters as anticipated. As for the RRTA-treated films, single TbCu7-type phase structure with well crystallization is observed. The coercivity of the RRTA-treated films is strongly correlated with annealing parameters, and its optimum value is larger than that of the CTA-treated films. It is suggested that the RRTA treatment has beneficial effects on the magnetic properties of the SmCo-based films. |
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| Keywords: | Hard magnetic films Coercivity Rapid recurrent thermal annealing Crystallization |
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