Effect of magnetic layer thickness on magnetic properties of Ce-Fe-B thin films
来源期刊：JOURNAL OF RARE EARTHS2018年第6期
论文作者：Yachao Sun Minggang Zhu Wei Liu Rui Han Wei Li
文章页码：619 - 622
摘 要：The Ce2 Fe14B thin films with a notable out-of-plane c-axis texture were prepared by DC magnetron sputtering on a Ta buffer layer. The morphological and magnetic properties were investigated. The thickness of the magnetic layer had a dramatic effect on the formation of Ce2 Fe14B phase,and excellent magnetic properties(Hci≈4.25 kOe, Mr/Ms≈0.81) were observed for the Ce-Fe-B film with the thickness dm = 200 nm. The results of the hysteresis loops for Ce-Fe-B film（dm = 200 nm） at various measured temperatures show that a decoupling between the hard and the soft phases is observed at low temperatures, which is due to the regions with quite low anisotropy provided by the a-Fe. Moreover. it is clear that significantly various magnetization behaviors between the films with dm = 200 and 300 nm were observed with a similar trend due to the existence of the a-Fe soft phase.
Yachao Sun1，Minggang Zhu1，Wei Liu2，Rui Han1，Wei Li1
1. Division of Functional Material,Central Iron & Steel Research Institute2. Shenyang National Laboratory for Materials Science,Institute of Metal Research,Chinese Academy of Sciences
摘 要：The Ce2 Fe14B thin films with a notable out-of-plane c-axis texture were prepared by DC magnetron sputtering on a Ta buffer layer. The morphological and magnetic properties were investigated. The thickness of the magnetic layer had a dramatic effect on the formation of Ce2 Fe14B phase,and excellent magnetic properties(Hci≈4.25 kOe, Mr/Ms≈0.81) were observed for the Ce-Fe-B film with the thickness dm = 200 nm. The results of the hysteresis loops for Ce-Fe-B film（dm = 200 nm） at various measured temperatures show that a decoupling between the hard and the soft phases is observed at low temperatures, which is due to the regions with quite low anisotropy provided by the a-Fe. Moreover. it is clear that significantly various magnetization behaviors between the films with dm = 200 and 300 nm were observed with a similar trend due to the existence of the a-Fe soft phase.
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