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arxiv: 0909.0963 · v2 · submitted 2009-09-04 · ❄️ cond-mat.mtrl-sci

Epitaxial growth and magnetoelectric relaxor behavior in multiferroic 0.8Pb(Fe1/2Nb1/2)O3-0.2Pb(Mg1/2W1/2)O3 thin films

Wei Peng (1) , N. Lem\'ee (1) , J.-L. Dellis (1) , V. V. Shvartsman (2) , P. Borisov (2) , W. Kleemann (2) , Z. Trontelj (3) , J. Holc (4)
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M. Kosec (4) R. Blinc (4) M. G. Karkut (1) ((1)LPMC Universit\'e de Picardie Jules Verne France (2) Angewandte Physik Universit\"at Duisburg-Essen Germany (3) IMPM Slovenia (4) JSI Slovenia)
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classification ❄️ cond-mat.mtrl-sci
keywords filmsmagneticbehaviordepositionepitaxialmagnetoelectrico3-0relaxor
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We present electric and magnetic properties of 0.8Pb(Fe1/2Nb1/2)O3-0.2Pb(Mg1/2W1/2)O3 films epitaxially grown on (001) SrTiO3 substrates using pulsed laser deposition. A narrow deposition window around 710 oC and 0.2 mbar has been identified to achieve epitaxial single-phase thin films. A typical Vogel-Fulcher relaxor-like dielectric and magnetic susceptibility dispersion is observed, suggesting magnetoelectric relaxor behavior in these films similar to the bulk. We determine a magnetic cluster freezing temperature of 36 K, while observing weak ferromagnetism via magnetic hysteresis loops up to 300 K.

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