Thickness-dependent magnetic properties of oxygen-deficient EuO

Abstract

We have studied how the magnetic properties of oxygen-deficient EuO sputtered thin films vary as a function of thickness. The magnetic moment, measured by polarized neutron reflectometry, and the Curie temperature are found to decrease with reducing thickness. Our results indicate that the reduced number of nearest neighbors, band bending and the partial depopulation of the electronic states that carry the spins associated with the 4f orbitals of Eu are all contributing factors in the surface-induced change of the magnetic properties of EuO${}_{1-x}$.

4 pages, 3 figures, 1 table

References in corpus (4)

• Soft x-ray magnetic circular dichroism study on Gd-doped EuO thin films
• Simultaneous ferromagnetic metal-semiconductor transition in electron-doped EuO
• Prediction of a spin-polarized two-dimensional electron gas at the LaAlO3/EuO(001) interface
• Magnetic interaction at an interface between manganite and other transition metal oxides

Cited by in corpus (7)

• Effect of phonon anharmonicity on ferroelectricity in EuxBa1-xTiO3
• Effect of Gd doping and O deficiency on the Curie temperature of EuO
• Spatially homogeneous ferromagnetism below the enhanced Curie temperature in EuO_{1-x} thin films
• On the theory of indirect exchange in EuO
• Table-like magnetocaloric effect and enhanced refrigerant capacity in EuO1-δ thin films
• The elevated Curie temperature and half-metallicity in the ferromagnetic semiconductor La${}_x$Eu${}_{1-x}$O
• Theory of Curie temperature enhancement in electron-doped EuO