Thickness-dependent magnetic properties of oxygen-deficient EuO

M. Barbagallo, T. Stollenwerk, J. Kroha, N. J. Steinke, N. D.M. Hine, J. F.K. Cooper, C. H.W. Barnes, A. Ionescu, P. M.D.S. Monteiro, J. Y. Kim, K. R.A. Ziebeck, C. J. Kinane, R. M. Dalgliesh, T. R. Charlton, S. Langridge

Research output: Contribution to journalArticlepeer-review

23 Scopus citations

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 these surface-induced effects are caused by the reduced number of nearest neighbors, band bending, and the partial depopulation of the 4f states of Eu.

Original languageEnglish
Article number075219
JournalPhysical Review B - Condensed Matter and Materials Physics
Volume84
Issue number7
DOIs
StatePublished - Aug 26 2011
Externally publishedYes

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