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Article 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.
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| http://www.ncbi.nlm.nih.gov/pmc/articles/PMC9597663 | PMC |
| http://dx.doi.org/10.1021/acs.inorgchem.2c03030 | DOI Listing |
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