Weak ferromagnetism in Tb(Fe0.2Mn0.2Co0.2Cr0.2Ni0.2) O3 high-entropy oxide perovskite thin films

Abstract

We have studied the structural and magnetic properties of Tb(Fe0.2Mn0.2Co0.2Cr0.2Ni0.2)O3 (T5BO) high-entropy oxide perovskite (HEOP) thin films. Using synchrotron-based x-ray absorption spectroscopy, employing x-ray magnetic circular dichroism, we performed an element-sensitive study of epitaxial T5BO thin films. The measurements reveal a magnetic multiphase with variable ferromagnetic ordering of all transition metal elements, providing a promising route towards designer ferroic properties in Tb-based HEOP thin films.