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Spin-lattice coupling in an epitaxial NdFeO3 thin film

Abstract : Rare-earth orthoferrite RFeO3 materials such as NdFeO3 are strongly studied because of their fascinating magnetic properties and their potential applications. Here, we show the successful epitaxial synthesis of parasitic-free NFO thin film by pulsed laser deposition on (001)-SrTiO3. High-resolution X-ray diffraction shows a coherent growth and a tetragonal-like structure of a tensile strained 80 nm thick NFO film in contrast with the bulk orthorhombic state. Room temperature magnetometry indicates a bulk-like antiferromagnetic state for the NFO film. Temperature-dependent X-ray diffraction and magnetometry highlight a significant spin-lattice coupling at the Neel Temperature while a new magneto-structural instability is discovered around 250 degrees C that needs further investigation.
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Soumis le : vendredi 1 avril 2022 - 10:45:20
Dernière modification le : mercredi 31 août 2022 - 12:02:44

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M. A. Khaled, J. Ruvalcaba, T. Fraga Cordova, M. El Marssi, H. Bouyanfif. Spin-lattice coupling in an epitaxial NdFeO3 thin film. Materials Letters, Elsevier, 2022, 309, ⟨10.1016/j.matlet.2021.131442⟩. ⟨hal-03627233⟩



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