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arXiv · 2204.06781

Spin-lattice coupling in an epitaxial NdFeO3 thin film

Mohamed Ali Khaled·Juan Ruvalcaba·Teodoro Fraga Cordova·Mimoun El Marssi·Houssny Bouyanfif
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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°C that needs further investigation.

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Mohamed Ali Khaled, Juan Ruvalcaba, Teodoro Fraga Cordova, Mimoun El Marssi, Houssny Bouyanfif. 2022-04-14. Spin-lattice coupling in an epitaxial NdFeO3 thin film. https://doi.org/10.1016/j.matlet.2021.131442

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