Apparent ferrimagnetism in Sr(Fe0.2Mn0.2Co0.2Ti0.2V0.2)O3 high-entropy oxide perovskite thin films
Source abstract
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.
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Research context
OpenAlex topics: High Entropy Alloys Studies · Magnetic and transport properties of perovskites and related materials · Electronic and Structural Properties of Oxides
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
Affiliations
Department of Physics, Baylor University 1 , Waco, Texas 76798, USA
Dipartimento di Fisica, Politecnico di Milano 2 , 20133 Milano, Italy
Paul Scherrer Institute 3 , Forschungsstrasse 111, 5232 Villigen PSI, Switzerland
OtaNano-Nanomicroscopy Center, Aalto University School of Science 4 , P.O. Box 15100, FI-00076 Aalto, Finland
Department of Applied Physics, Aalto University School of Science 5 , P.O. Box 15100, FI-00076 Aalto, Finland
Funding
Schweizerischer Nationalfonds zur Förderung der Wissenschaftlichen Forschung
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