Electronic inhomogeneity in EuO: Possibility of magnetic polaron states

Abstract

We have observed the spatial inhomogeneity of the electronic structure of a single-crystalline electron-doped EuO thin film with ferromagnetic ordering by employing infrared magneto-optical imaging with synchrotron radiation. The uniform paramagnetic electronic structure changes to a uniform ferromagnetic structure via an inhomogeneous state with decreasing temperature and increasing magnetic field slightly above the ordering temperature. One possibility of the origin of the inhomogeneity is the appearance of magnetic polaron states.

arXiv comment4 pages, 3 figures

References in corpus (5)

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• Simultaneous ferromagnetic metal-semiconductor transition in electron-doped EuO
• Magnetic properties of pure and Gd doped EuO probed by NMR
• The origin of the phase separation in partially deuterated $\kappa$-(ET)${}_2$Cu[N(CN)${}_2$]Br studied by infrared magneto-optical imaging spectroscopy
• Magnetic Field-Induced Superconductor-Insulator-Metal Transition in an Organic Conductor: An Infrared Magneto-Optical Imaging Spectroscopy

Cited by in corpus (2)

• Infrared and Terahertz Spectroscopy of Strongly Correlated Electron Systems under Extreme Conditions
• Spatially homogeneous ferromagnetism below the enhanced Curie temperature in EuO_{1-x} thin films