双钙钛矿Sr2FeNbO6-δ的相分离

IF 2.6 4区化学 Q2 CHEMISTRY, INORGANIC & NUCLEAR

Magnetochemistry Pub Date : 2023-10-08 DOI:10.3390/magnetochemistry9100219

Daniil Popov, Ruslan Batulin, Mikhail Cherosov, Farit Vagizov, Almaz Zinnatullin, Tatiana Chupakhina, Yuliya Deeva, Tanmoy Maiti, Rushana Eremina

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引用次数: 0

摘要

采用溶液燃烧前驱体法合成了陶瓷钙钛矿Sr2FeNbO6-δ。x射线相分析表明样品为单相，不含杂质。测定了Sr2FeNbO6-δ陶瓷在4 ~ 300 K温度范围内的比热容和Mössbauer光谱。Mössbauer光谱中不对称双重态的观察和磁化率的文献数据表明，Sr2FeNbO6-δ中存在两个具有反铁磁交换作用的磁子系统。在分析比热容对温度依赖性的基础上，确定了德拜温度和爱因斯坦温度。

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Phase Separation in the Double Perovskite Sr2FeNbO6-δ

The ceramic perovskite Sr2FeNbO6-δ was synthesized via the solution combustion precursor method. X-ray phase analysis showed that the sample is single-phase and does not contain impurities. The specific heat capacity and the Mössbauer spectra were measured for the Sr2FeNbO6-δ ceramic in the temperature range of 4–300 K. The observation of an asymmetric doublet in the Mössbauer spectra and the literature data on the magnetic susceptibility indicated the presence of two magnetic subsystems in Sr2FeNbO6-δ with antiferromagnetic exchange interactions. Based on the analysis of the temperature dependence of the specific heat capacity, we determined the Debye and Einstein temperatures.

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来源期刊

Magnetochemistry Chemistry-Chemistry (miscellaneous)

CiteScore

3.90

自引率

11.10%

发文量

145

审稿时长

11 weeks

期刊介绍： Magnetochemistry (ISSN 2312-7481) is a unique international, scientific open access journal on molecular magnetism, the relationship between chemical structure and magnetism and magnetic materials. Magnetochemistry publishes research articles, short communications and reviews. Our aim is to encourage scientists to publish their experimental and theoretical results in as much detail as possible. Therefore, there is no restriction on the length of the papers. The full experimental details must be provided so that the results can be reproduced.