PreprintCC BY 4.0arXiv
Varying A-site radius and size disorder to tune magnetic ordering in compositionally complex perovskite oxides
Abstract
A long standing goal of magnetochemists is to be able to control ordering temperatures through compositional engineering. Here we report the synthesis of a perovskite oxide with twelve cations accommodated within a single phase solid solution, AM7O3, A = La1/5Sm1/5Gd1/5Nd1/5Dy1/5 (A5), and M7 = Ti1/7Cr1/7Mn1/7Fe1/7Co1/7Ni1/7Cu1/7. Bulk magnetometry measurements for A5M7O3, as well as for A = La, Gd and La1/2Gd1/2, show that all these compounds magnetically order as ferrimagnets between 89 and 115 K. We find that the magnetic properties are influenced by considering a combination of the size disorder parameter alongside the A-site cationic radii and valence electrons.
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BibTeX
@misc{geers2026varying,
title = {{Varying A-site radius and size disorder to tune magnetic ordering in compositionally complex perovskite oxides}},
author = {Madeleine Geers and Ravi Kiran Dokala and Roland Mathieu and Rebecca Clulow},
howpublished = {arXiv},
year = {2026},
month = sep,
doi = {10.48550/arxiv.2609.39303},
eprint = {2609.39303},
archivePrefix = {arXiv},
url = {https://arxiv.org/abs/2609.39303},
note = {CC BY 4.0},
}
RIS
TY - UNPB
TI - Varying A-site radius and size disorder to tune magnetic ordering in compositionally complex perovskite oxides
AU - Madeleine Geers
AU - Ravi Kiran Dokala
AU - Roland Mathieu
AU - Rebecca Clulow
PY - 2026
DA - 2026/09/30
PB - arXiv
DO - 10.48550/arxiv.2609.39303
UR - https://arxiv.org/abs/2609.39303
AB - A long standing goal of magnetochemists is to be able to control ordering temperatures through compositional engineering. Here we report the synthesis of a perovskite oxide with twelve cations accommodated within a single phase solid solution, AM7O_3, A = La_1/5Sm_1/5Gd_1/5Nd_1/5Dy_1/5 (A5), and M7 = Ti_1/7Cr_1/7Mn_1/7Fe_1/7Co_1/7Ni_1/7Cu_1/7. Bulk magnetometry measurements for A5M7O_3, as well as for A = La, Gd and La_1/2Gd_1/2, show that all these compounds magnetically order as ferrimagnets between 89 and 115 K. We find that the magnetic properties are influenced by considering a combination of the size disorder parameter alongside the A-site cationic radii and valence electrons.
ER -