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B 位有序和无序的 CaCuFeOsO 的磁性和输运性质的比较研究

Comparative Study on the Magnetic and Transport Properties of B-Site Ordered and Disordered CaCuFeOsO.

作者信息

Wang Xiao, Liu Zhehong, Deng Hongshan, Agrestini Stefano, Chen Kai, Lee Jyh-Fu, Lin Hong-Ji, Chen Chien-Te, Choueikani Fadi, Ohresser Philippe, Wilhelm Fabrice, Rogalev Andrei, Tjeng Liu Hao, Hu Zhiwei, Long Youwen

机构信息

Beijing National Laboratory for Condensed Matter Physics, Institute of Physics, Chinese Academy of Sciences, Beijing 100190, China.

Max Planck Institute for Chemical Physics of Solids, Dresden 01187, Germany.

出版信息

Inorg Chem. 2022 Oct 24;61(42):16929-16935. doi: 10.1021/acs.inorgchem.2c03030. Epub 2022 Oct 10.

DOI:10.1021/acs.inorgchem.2c03030
PMID:36214839
原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC9597663/
Abstract

The B-site Fe/Os ordered and disordered quadruple perovskite oxides CaCuFeOsO were synthesized under different high-pressure and high-temperature conditions. The B-site ordered CaCuFeOsO is a system with a very high ferrimagnetic ordering temperature of 580 K having the Cu(↑)Fe(↑)Os(↓) charge and spin arrangement. In comparison, the highly disordered CaCuFeOsO has a reduced magnetic transition temperature of about 350 K. The CuFeOs charge combination remains the same without any sign of changes in the valence state of the constituent ions. Although the average net moments of each sublattice are reduced, the average ferrimagnetic spin arrangement is unaltered. The robustness of the basic magnetic properties of CaCuFeOsO against site disorder may be taken as an indication of the tendency to maintain the short-range order of the atomic constituents.

摘要

在不同的高温高压条件下合成了B位Fe/Os有序和无序的四重钙钛矿氧化物CaCuFeOsO。B位有序的CaCuFeOsO是一个具有580K非常高的亚铁磁有序温度的体系，其具有Cu(↑)Fe(↑)Os(↓)的电荷和自旋排列。相比之下，高度无序的CaCuFeOsO的磁转变温度降低至约350K。CuFeOs电荷组合保持不变，组成离子的价态没有任何变化迹象。虽然每个亚晶格的平均净磁矩降低，但平均亚铁磁自旋排列未改变。CaCuFeOsO基本磁性能对位点无序的稳健性可被视为维持原子成分短程有序趋势的一个指标。

https://cdn.ncbi.nlm.nih.gov/pmc/blobs/2845/9597663/38a9d2ef80fd/ic2c03030_0007.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/2845/9597663/3da7e59c1634/ic2c03030_0002.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/2845/9597663/0ced7d0419aa/ic2c03030_0003.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/2845/9597663/6de7d705f926/ic2c03030_0004.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/2845/9597663/b5688d8eabd2/ic2c03030_0005.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/2845/9597663/f4425bc9d53e/ic2c03030_0006.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/2845/9597663/38a9d2ef80fd/ic2c03030_0007.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/2845/9597663/3da7e59c1634/ic2c03030_0002.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/2845/9597663/0ced7d0419aa/ic2c03030_0003.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/2845/9597663/6de7d705f926/ic2c03030_0004.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/2845/9597663/b5688d8eabd2/ic2c03030_0005.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/2845/9597663/f4425bc9d53e/ic2c03030_0006.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/2845/9597663/38a9d2ef80fd/ic2c03030_0007.jpg

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