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

doi:10.1063/1.3133351

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

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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.

Original language	English (US)
Article number	212509
Journal	Applied Physics Letters
Volume	94
Issue number	21
DOIs	https://doi.org/10.1063/1.3133351
State	Published - 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

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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.",

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AU - Ke, X.

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AU - Heeg, T.

AU - Roeckerath, M.

AU - Freeland, J. W.

AU - Fennie, C. J.

AU - Schubert, J.

AU - Muller, D. A.

AU - Schiffer, P.

AU - Schlom, D. G.

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