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- W1593711281 endingPage "037802" @default.
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- W1593711281 abstract "This paper reports that La-doped BiFeO3 (Bi1−xLaxFeO3, x = 0, 0.1, 0.2, 0.3, 0.6, 0.8 and 1.0) were studied by using micro-Raman spectroscopy and x-ray diffraction (XRD). The XRD patterns indicate that the structure of Bi1−xLaxFeO3 changes from rhombohedral BiFeO3 to orthorhombic LaFeO3. The results of Raman spectroscopy show good agreement with the XRD results. Strikingly, the phonon peak at around 610 cm−1 and the two-phonon peaks in the high frequency range exist in all compounds and enhance with increasing La substitution. The increasing intensity of the 610 cm−1 peak is attributed to the changes in the FeO6 octahedron during the rhombohedral–orthorhombic phase transition. The enhancements of the two-phonon peaks are associated with the breakdown of the cycloid spin configuration with the appearance of the orthorhombic structure. These results indicate the existence of strong spin–phonon coupling in Bi1−xLaxFeO3, which may provide useful information for understanding the effects of La content on the structural and magnetic properties of Bi1−xLaxFeO3." @default.
- W1593711281 created "2016-06-24" @default.
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- W1593711281 date "2010-03-01" @default.
- W1593711281 modified "2023-10-16" @default.
- W1593711281 title "Structural properties of Bi<sub>1−<i>x</i></sub>La<i><sub>x</sub></i>FeO<sub>3</sub>studied by micro-Raman scattering" @default.
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- W1593711281 doi "https://doi.org/10.1088/1674-1056/19/3/037802" @default.
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