Y3-xCex(Fe0.5Ga0.5)5O12 (х = 0, 0.5) 的合成、晶体结构和磁性能

IF 1.8 3区化学 Q3 CHEMISTRY, INORGANIC & NUCLEAR

Russian Journal of Inorganic Chemistry Pub Date : 2024-08-23 DOI:10.1134/s0036023624601041

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。

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Synthesis, Crystal Structure, and Magnetic Properties of Y3–xCex(Fe0.5Ga0.5)5O12 (х = 0, 0.5)

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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 Y_3–xCe_x(Fe_0.5Ga_0.5)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 Y_3–xCe_x(Fe_0.5Ga_0.5)₅O₁₂ increases with the replacement of yttrium ions Y³⁺ by Ce³⁺. In this case, the effective Curie–Weiss temperature Ɵ_eff of the antiferromagnetic component of exchange magnetic interactions in Y_2.5Сe_0.5Fe_2.5Ga_0.5O₁₂ varies from |–570| to |–650| K.

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来源期刊

Russian Journal of Inorganic Chemistry 化学-无机化学与核化学

CiteScore

3.10

自引率

38.10%

发文量

237

审稿时长

3 months

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.