Apparent ferrimagnetism in Sr(Fe0.2Mn0.2Co0.2Ti0.2V0.2)O3 high-entropy oxide perovskite thin films

Balaram Regmi, Duncan Miertschin, Maria Cocconcelli, Federico Stramaglia, Davis Crater, Lide Yao, 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 Sr(Fe0.2Mn0.2Co0.2Ti0.2V0.2)O3 (S5BO) high-entropy oxide perovskite thin films. We use synchrotron-based x-ray absorption spectroscopy employing x-ray magnetic circular dichroism (XMCD) and reveal an enhanced presence of high-spin Co2+, which appears to feature a magnetic response opposing that of the two other magnetic transition metal elements, Fe and Mn. This is marked by both opposite XMCD signals and an inverted XMCD hysteresis loop for Co, while Fe and Mn show regularly shaped hysteresis curves, as the picture of a ferrimagnetic ground state emerges for S5BO.

Original languageEnglish
Article number025023
Pages (from-to)1-6
Number of pages6
JournalAIP Advances
Volume14
Issue number2
DOIs
Publication statusPublished - 1 Feb 2024
MoE publication typeA1 Journal article-refereed

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