Mn \(_{0.75}\) Co \(_{2.25}\) BO \(_{5}\)化合物的自旋玻璃化转变

IF 1.6 4区物理与天体物理 Q3 PHYSICS, APPLIED

Journal of Superconductivity and Novel Magnetism Pub Date : 2025-05-26 DOI:10.1007/s10948-025-06999-4

D. V. Popov, V. A. Shustov, R. G. Batulin, M. A. Cherosov, E. M. Moshkina, R. M. Eremina

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引用次数: 0

摘要

用Na \(_{2}\) Co \(_{3}\)改性的Bi \(_{2}\) Mo \(_{3}\) O \(_{12}\)基助熔剂，通过助熔剂法制备了由小单晶聚集而成的块状Mn \(_{0.75}\) Co \(_{2.25}\) BO \(_{5}\)晶体。这些晶体在分析前被磨成粉末。x射线粉末衍射显示Pbam空间群，晶格参数为\(a = 9.2637(6)\) Å， \(b = 12.3030(5)\) Å和\(c = 3.0344(1)\,\text{\AA }\)。对Mn \(_{0.75}\) Co \(_{2.25}\) BO \(_{5}\)粉末进行了x射线衍射和温度相关的交流和直流磁化测量。交流和直流磁化的测量表明，在42.5 K附近发生了自旋玻璃转变。

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Spin-Glass Transition in Mn\(_{0.75}\)Co\(_{2.25}\)BO\(_{5}\) Compound

Block-shaped crystals of Mn\(_{0.75}\)Co\(_{2.25}\)BO\(_{5}\), composed of aggregates of small single crystallites, were grown via the flux method using a Bi\(_{2}\)Mo\(_{3}\)O\(_{12}\)-based flux modified with Na\(_{2}\)CO\(_{3}\). The crystals were powdered prior to analysis. X-ray powder diffraction revealed a Pbam space group with lattice parameters \(a = 9.2637(6)\) Å, \(b = 12.3030(5)\) Å, and \(c = 3.0344(1)\,\text{\AA }\). X-ray diffraction and temperature-dependent measurements of AC and DC magnetization were performed on the Mn\(_{0.75}\)Co\(_{2.25}\)BO\(_{5}\) powder. Measurements of AC and DC magnetization demonstrate a spin-glass transition near 42.5 K.

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来源期刊

Journal of Superconductivity and Novel Magnetism 物理-物理：凝聚态物理

CiteScore

3.70

自引率

11.10%

发文量

342

审稿时长

3.5 months

期刊介绍： The Journal of Superconductivity and Novel Magnetism serves as the international forum for the most current research and ideas in these fields. This highly acclaimed journal publishes peer-reviewed original papers, conference proceedings and invited review articles that examine all aspects of the science and technology of superconductivity, including new materials, new mechanisms, basic and technological properties, new phenomena, and small- and large-scale applications. Novel magnetism, which is expanding rapidly, is also featured in the journal. The journal focuses on such areas as spintronics, magnetic semiconductors, properties of magnetic multilayers, magnetoresistive materials and structures, magnetic oxides, etc. Novel superconducting and magnetic materials are complex compounds, and the journal publishes articles related to all aspects their study, such as sample preparation, spectroscopy and transport properties as well as various applications.