Hill Plot Focusing on Ce Compounds with High Magnetic Ordering Temperatures and Consequent Study of Ce2AuP3
Hill Plot Focusing on Ce Compounds with High Magnetic Ordering Temperatures and Consequent Study of Ce2AuP3
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DOI：
10.1007/s10948-018-4624-9
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发表时间：
2018-11-01
影响因子：
1.8
通讯作者：
Kitagawa, Jiro
中科院分区：
文献类型：
--
作者：
Miyahara, Junya;Shirakawa, Naoki;Kitagawa, Jiro
希尔图是区分锕系和镧系中磁态和磁态的f-电子元素原子间阈值距离的著名判据。我们使用商业晶体学数据库CRYSTMET重新研究了Ce化合物的Hill图，专注于Ce-Ce距离和磁有序温度之间的关系，因为没有其他磁性元素的Ce化合物很少具有高于20 K的磁有序温度。大约730种化合物的希尔图显示，显示出高磁有序温度的Ce化合物，特别是铁磁体，需要短的Ce-Ce距离，抑制Ce离子的价态不稳定性。从研究中，我们开发的兴趣，Ce 2AuP 3的居里温度为31 K。这种材料的铁磁性质已被检查的掺杂效应，这表明可能增加磁各向异性能量方面。
The Hill plot is a well-known criterion of the f-electron element interatomic threshold distance separating the nonmagnetic state from the magnetic state in actinides and lanthanides. We have reinvestigated the Hill plot of Ce compounds using the commercial crystallographic database CRYSTMET, focusing on a relationship between the Ce-Ce distance and the magnetic ordering temperature because a Ce compound with no other magnetic elements rarely has a magnetic ordering temperature that is higher than 20 K. The Hill plot of approximately 730 compounds has revealed that a Ce compound, particularly a ferromagnet, showing a high magnetic ordering temperature would require a short Ce-Ce distance with a suppression of the valence instability of the Ce ion. From the study, we developed interest in Ce2AuP3 with a Curie temperature of 31 K. The ferromagnetic nature of this material has been examined in terms of a doping effect, which suggests a possible increase in magnetic anisotropy energy.