Optical band gap and magnetic properties of unstrained EuTiO3 films

J. H. Lee, X. Ke, N. J. Podraza, L. Fitting Kourkoutis, T. Heeg, M. Roeckerath, J. W. Freeland, C. J. Fennie, J. Schubert, D. A. Muller, P. Schiffer, D. G. Schlom

Research output: Contribution to journalArticle

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.

Original languageEnglish (US)
Article number212509
JournalApplied Physics Letters
Volume94
Issue number21
DOIs
StatePublished - 2009

ASJC Scopus subject areas

  • Physics and Astronomy (miscellaneous)

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    Lee, J. H., Ke, X., Podraza, N. J., Kourkoutis, L. F., Heeg, T., Roeckerath, M., Freeland, J. W., Fennie, C. J., Schubert, J., Muller, D. A., Schiffer, P., & Schlom, D. G. (2009). Optical band gap and magnetic properties of unstrained EuTiO3 films. Applied Physics Letters, 94(21), [212509]. https://doi.org/10.1063/1.3133351