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arXiv · 2312.01931

Nuclear and magnetic structure of an epitaxial La$_{0.67}$Sr$_{0.33}$MnO$_{3}$ film using diffraction methods

Himanshu Himanshu·Elisa Rebolini·Ketty Beauvois·Stéphane Grenier·Bernard Mercey·Bernadette Domengès·Bachir Ouladdiaf·Marie-Bernadette Lepetit·Charles Simon
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Abstract

We use a combination of transmission electron microscopy, X-Ray and neutron diffraction, SQUID magnetometry and symmetry analysis to determine the nuclear and magnetic structure of an epitaxial LSMO film, deposited on a Si substrate. The film undergoes a magnetic ordering transition at 260K. At 300K, in the paramagnetic phase, the manganite film has a $I4/m$ space group. In the magnetic phase, SQUID and neutron diffraction results lead us to assign a ferromagnetic spin-order to the film, associated to magnetic moments with a slightly out-of-plane component, namely $(3.5, 0, 0.3)\,\mu_B$. Symmetry analysis further shows that only the $P\bar 1'$ group is compatible with such a magnetic ordering.

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Himanshu Himanshu, Elisa Rebolini, Ketty Beauvois, Stéphane Grenier, Bernard Mercey, Bernadette Domengès, Bachir Ouladdiaf, Marie-Bernadette Lepetit, Charles Simon. 2023-12-04. Nuclear and magnetic structure of an epitaxial La$_{0.67}$Sr$_{0.33}$MnO$_{3}$ film using diffraction methods. https://arxiv.org/abs/2312.01931

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