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American Institute of Physics, Applied Physics Letters, 21(94), p. 212509

DOI: 10.1063/1.3133351

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Optical band gap and magnetic properties of unstrained EuTiO[sub 3] films

Journal article published in 2009 by J. H. Lee, X. Ke, N. J. Podraza, L. Fitting Kourkoutis, T. Heeg, M. Roeckerath, J. W. Freeland, C. J. Fennie, J. Schubert ORCID, D. A. Muller, P. Schiffer, D. G. Schlom
This paper is available in a repository.
This paper is available in a repository.

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Abstract

Phase-pure, stoichiometric, unstrained, epitaxial (001)-oriented EuTiO3 thin films have been grown on (001) SrTiO3 substrates by reactive molecular-beam epitaxy. Magnetization measurements show antiferromagnetic behavior with TN=5.5 K, similar to bulk EuTiO3. Spectroscopic ellipsometry measurements reveal that EuTiO3 films have a direct optical band gap of 0.93+/-0.07 eV.