Impact of epitaxial strain relaxation on ferromagnetism in a freestanding La 2 / 3 Sr 1 / 3 MnO 3 membrane

Abstract Manganite perovskites host emerging physical properties of strongly-correlated electrons with charge, spin, and lattice degrees of freedom. Using the epitaxial lift-off technique, we report enhancement of saturation magnetization and the ferromagnetic transition temperature of freestanding...

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Bibliographic Details
Published inJapanese Journal of Applied Physics Vol. 62; no. 10; p. 100902
Main Authors Atsumi, Ryuji, Shiogai, Junichi, Yamazaki, Takumi, Seki, Takeshi, Ueda, Kohei, Matsuno, Jobu
Format Journal Article
LanguageEnglish
Published 01.10.2023
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Summary:Abstract Manganite perovskites host emerging physical properties of strongly-correlated electrons with charge, spin, and lattice degrees of freedom. Using the epitaxial lift-off technique, we report enhancement of saturation magnetization and the ferromagnetic transition temperature of freestanding La 2/3 Sr 1/3 MnO 3 membrane compared with as-grown film on SrTiO 3 substrate involving lateral tensile strain. Structural analysis reveals shrinkage of unit-cell volume by tensile strain relaxation in the freestanding membrane, which causes enhancement of the ferromagnetic interaction. The impact of the microscopic lattice deformation on the ferromagnetism of La 2/3 Sr 1/3 MnO 3 indicates a high potential of this material for flexible electronics applications with intriguing functionalities in strongly-correlated electron systems.
ISSN:0021-4922
1347-4065
DOI:10.35848/1347-4065/ad0270