{"database":"biostudies-literature","file_versions":[],"scores":null,"additional":{"omics_type":["Unknown"],"volume":["62(49)"],"submitter":["Belik AA"],"pubmed_abstract":["Dy<sub>2</sub>CuZnMn<sub>4</sub>O<sub>12</sub> perovskite, belonging to the A-site columnar-ordered quadruple perovskite family with the general composition of A<sub>2</sub>A'A″B<sub>4</sub>O<sub>12</sub>, was prepared by a high-pressure, high-temperature method at 6 GPa and 1500 K. Its crystal structure was studied by synchrotron powder X-ray diffraction between 100 and 800 K. The ideal cation distribution (without antisite disorder) was found to be realized within the sensitivity of the synchrotron X-ray diffraction method. Between 100 and 400 K, it crystallizes in space group <i>Pmmn</i> (no. 59) and has layered charge ordering of Mn<sup>3+</sup> and Mn<sup>4+</sup> at the B sites. Above 425 K, it crystallizes in space group <i>P</i>4<sub>2</sub>/<i>nmc</i> (no. 137) with one crystallographic B site and an average Mn<sup>3.5+</sup> oxidation state. The charge ordering transition (at <i>T</i><sub>CO</sub> = 425 K) appears to be of the second order as no anomalies were found on differential scanning calorimetry curves and temperature dependence of the unit cell volume, and the orthorhombic <i>a</i> and <i>b</i> lattice parameters merge gradually. The compound demonstrates anisotropic thermal expansion with the <i>c</i> lattice parameter decreasing with increasing temperature above 280 K. A ferrimagnetic transition occurs at <i>T</i><sub>C</sub> = 116 K with an additional, gradual rise of magnetic susceptibilities below 45 K, probably due to increases of the ordered moments of the Dy sublattices."],"journal":["Inorganic chemistry"],"pagination":["20042-20049"],"full_dataset_link":["https://www.ebi.ac.uk/biostudies/studies/S-EPMC10910486"],"repository":["biostudies-literature"],"pubmed_title":["Anisotropic Thermal Expansion and a Second-Order Charge Order Transition in the Ferrimagnetic Dy<sub>2</sub>CuZnMn<sub>4</sub>O<sub>12</sub> Perovskite with Triple A-Site Cation Ordering."],"pmcid":["PMC10910486"],"pubmed_authors":["Belik AA"],"additional_accession":[]},"is_claimable":false,"name":"Anisotropic Thermal Expansion and a Second-Order Charge Order Transition in the Ferrimagnetic Dy<sub>2</sub>CuZnMn<sub>4</sub>O<sub>12</sub> Perovskite with Triple A-Site Cation Ordering.","description":"Dy<sub>2</sub>CuZnMn<sub>4</sub>O<sub>12</sub> perovskite, belonging to the A-site columnar-ordered quadruple perovskite family with the general composition of A<sub>2</sub>A'A″B<sub>4</sub>O<sub>12</sub>, was prepared by a high-pressure, high-temperature method at 6 GPa and 1500 K. Its crystal structure was studied by synchrotron powder X-ray diffraction between 100 and 800 K. The ideal cation distribution (without antisite disorder) was found to be realized within the sensitivity of the synchrotron X-ray diffraction method. Between 100 and 400 K, it crystallizes in space group <i>Pmmn</i> (no. 59) and has layered charge ordering of Mn<sup>3+</sup> and Mn<sup>4+</sup> at the B sites. Above 425 K, it crystallizes in space group <i>P</i>4<sub>2</sub>/<i>nmc</i> (no. 137) with one crystallographic B site and an average Mn<sup>3.5+</sup> oxidation state. The charge ordering transition (at <i>T</i><sub>CO</sub> = 425 K) appears to be of the second order as no anomalies were found on differential scanning calorimetry curves and temperature dependence of the unit cell volume, and the orthorhombic <i>a</i> and <i>b</i> lattice parameters merge gradually. The compound demonstrates anisotropic thermal expansion with the <i>c</i> lattice parameter decreasing with increasing temperature above 280 K. A ferrimagnetic transition occurs at <i>T</i><sub>C</sub> = 116 K with an additional, gradual rise of magnetic susceptibilities below 45 K, probably due to increases of the ordered moments of the Dy sublattices.","dates":{"release":"2023-01-01T00:00:00Z","publication":"2023 Dec","modification":"2025-04-05T11:38:55.226Z","creation":"2025-04-05T11:38:55.226Z"},"accession":"S-EPMC10910486","cross_references":{"pubmed":["38012860"],"doi":["10.1021/acs.inorgchem.3c02835"]}}