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arXiv · 1211.6025

Magneto-optical properties of La2/3Sr1/3MnO3 ultrathin films

M. Veis·M. Zahradnik·R. Antos·S. Visnovsky·Ph. Lecoeur·D. Esteve·S. Autier-Laurent·J. -P. Renard·P. Beauvillanin
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Abstract

Pulse laser deposited La2/3Sr1/3MnO3 ultrathin films on SrTiO3 substrates were characterized by polar and longitudinal Kerr magneto-optical spectroscopy. An agreement between experimental and theoretical spectra was achieved for a 10.7 nm thick film, while a distinction in the Kerr effect amplitudes was obtained for a 5 nm thick film. This points to the slight suppression of ferromagnetism by interface effects. Nevertheless, the room temperature ferromagnetism of the 5 nm thick film was clearly demonstrated. All the studied films exhibit magneto-optical properties similar to single crystals and thick films, which confirms a fully developed perovskite structure even at 5 nm.

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M. Veis, M. Zahradnik, R. Antos, S. Visnovsky, Ph. Lecoeur, D. Esteve, S. Autier-Laurent, J. -P. Renard, P. Beauvillanin. 2012-11-26. Magneto-optical properties of La2/3Sr1/3MnO3 ultrathin films. https://arxiv.org/abs/1211.6025

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