Element-sensitive x-ray absorption spectroscopy and magnetometry of Lu(Fe0.2Mn0.2Co0.2Cr0.2Ni0.2)O-3 high-entropy oxide perovskite thin films

We present a study on the structural and magnetic properties of Lu(Fe0.2Mn0.2Co0.2Cr0.2Ni0.2)O-3 (Lu5BO) high-entropy oxide perovskite thin films. We use synchrotron-based x-ray absorption spectroscopy employing x-ray magnetic circular and linear dichroism (XMCD and XMLD) to perform an element-sensitive study on single-crystal epitaxial Lu5BO thin films. Together with XMCD magnetometry, the results reveal dominant antiferromagnetic order with a transition temperature around 100 K.