E. S. Romanova, M. N. Smirnova, G. E. Nikiforova, V. A. Ketsko, K. I. Yanushkevich
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引用次数: 0
摘要
摘要 测量了凝胶燃烧法获得的成分为 Y3-xCex(Fe0.5Ga0.5)5O12（x = 0；0.5）的铁榴石的比磁化率和磁感应强度。研究发现，在 1023 K 的压力≈ 10-2 Pa 条件下合成并结晶 2 小时后，所研究成分 Y3-xCex(Fe0.5Ga0.5)5O12 的磁性相变温度随着钇离子 Y3+ 被 Ce3+ 取代而升高。在这种情况下，Y2.5Сe0.5Fe2.5Ga0.5O12 中交换磁相互作用反铁磁成分的有效居里-韦斯温度 Ɵeff 从 |-570| 到 |-650| K 不等。
Synthesis, Crystal Structure, and Magnetic Properties of Y3–xCex(Fe0.5Ga0.5)5O12 (х = 0, 0.5)
Abstract
The specific magnetization and magnetic susceptibility of ferrogarnets of the composition Y3–xCex(Fe0.5Ga0.5)5O12 (x = 0; 0.5) obtained by the gel combustion method have been measured. It has been found that after synthesis and subsequent crystallization at pressure ≈ 10–2 Pa at 1023 K for 2 h, the temperature of magnetic phase transformation in the studied compositions Y3–xCex(Fe0.5Ga0.5)5O12 increases with the replacement of yttrium ions Y3+ by Ce3+. In this case, the effective Curie–Weiss temperature Ɵeff of the antiferromagnetic component of exchange magnetic interactions in Y2.5Сe0.5Fe2.5Ga0.5O12 varies from |–570| to |–650| K.
期刊介绍：
Russian Journal of Inorganic Chemistry is a monthly periodical that covers the following topics of research: the synthesis and properties of inorganic compounds, coordination compounds, physicochemical analysis of inorganic systems, theoretical inorganic chemistry, physical methods of investigation, chemistry of solutions, inorganic materials, and nanomaterials.
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