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Two-phonon coupling to the antiferromagnetic phase transition in multiferroic
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10.1063/1.2829681
/content/aip/journal/apl/92/2/10.1063/1.2829681
http://aip.metastore.ingenta.com/content/aip/journal/apl/92/2/10.1063/1.2829681
View: Figures

Figures

Image of FIG. 1.
FIG. 1.

Temperature-dependent (room temperature to ) unpolarized Raman scattering spectra of film (a) and bulk single crystal (b) under excitation at .

Image of FIG. 2.
FIG. 2.

Detail of the Raman spectrum in the wavenumber region. Solid lines are fits to three Gaussian functions corresponding to two-phonon replica of the , , and normal modes in BFO, respectively. (a) Room temperature and (b) .

Image of FIG. 3.
FIG. 3.

(Left axis) Temperature dependence of the reduced integrated Raman intensity of the two-phonon Raman scattering band in normalized to scattering intensity of the phonon. (Right axis) Integrated intensity ratio between and two-phonon modes, as a function of the sample temperature.

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/content/aip/journal/apl/92/2/10.1063/1.2829681
2008-01-16
2014-04-17
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752b84549af89a08dbdd7fdb8b9568b5 journal.articlezxybnytfddd
Scitation: Two-phonon coupling to the antiferromagnetic phase transition in multiferroic BiFeO3
http://aip.metastore.ingenta.com/content/aip/journal/apl/92/2/10.1063/1.2829681
10.1063/1.2829681
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