Spin reorientation in Dy-based high-entropy oxide perovskite thin films

Maria Cocconcelli*, Duncan Miertschin, Balaram Regmi, Davis Crater, Federico Stramaglia, Lide Yao, Riccardo Bertacco, Cinthia Piamonteze, Sebastiaan Van Dijken, Alan Farhan

*Corresponding author for this work

Research output: Contribution to journalArticleScientificpeer-review

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Abstract

We present a study on the structural and magnetic properties of thin films of the high entropy perovskite Dy(Fe0.2Mn0.2Co0.2Cr0.2Ni0.2)O3 (Dy5BO). An element-sensitive investigation was performed using synchrotron-based x-ray absorption spectroscopy, employing x-ray magnetic circular and linear dichroism. The results reveal that the moments residing on the 3d transition metal ions and the rare-earth Dy ions produce a saturation magnetization one order of magnitude larger than any previously studied high-entropy oxide perovskite. Employing temperature-dependent x-ray magnetic linear dichroism, we see clear features of a spin reorientation at the Mn and Fe sites, occurring around 18 K, likely driven by the interaction of the corresponding transition metal ions and Dy.

Original languageEnglish
Article number134422
Pages (from-to)1-8
Number of pages8
JournalPhysical Review B
Volume109
Issue number13
DOIs
Publication statusPublished - 1 Apr 2024
MoE publication typeA1 Journal article-refereed

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