Resonant inelastic x-ray scattering study of Bi6Fe2Ti3O18, Bi6FeCoTi3O18, and LaBi5FeCoTi3O18 Aurivillius-phase oxides

Article

关键词: MULTIFERROIC PROPERTIES;    THIN-FILMS;    FERROELECTRICITY;    1ST-PRINCIPLES;    SUPERLATTICES;    SPECTROSCOPY;    EXCITATIONS;    ALPHA-FE2O3;    SPECTRA;   

DOI  :  10.1103/PhysRevB.95.205102

来源: SCIE

【 摘 要 】

Aurivillius-phase oxides exhibit the coexistence of ferroelectricity (FE) and ferromagnetism (FM) above room temperature, and the FE and FM orders can be modified by various dopants. However, detailed examinations of their electronic structures in response to the dopants are still lacking. Here, the Bi6Fe2Ti3O18, Bi6FeCoTi3O18, and LaBi5FeCoTi3O18 epitaxial thin films were prepared and the systematic experimental and theoretical resonant inelastic x-ray scattering (RIXS) studies were performed at both Fe and Co L edges. The RIXS measurements reveal the modified electronic structures induced by the doping of Co and La. The RIXS simulations demonstrate that the electronic structure variations are the outcome of modified crystal-field parameters of FeO6 and CoO6 octahedra.

【 授权许可】

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