Phonon Raman scattering in LaMn1−xCoxO3 (x=0, 0.2, 0.3, 0.4, and 1.0)

Phonon Raman scattering in LaMn1−xCoxO3 (x=0, 0.2, 0.3, 0.4, and 1.0)

The Raman-active phonons in perovskite-like LaMn1−xCoxO3 (x=0, 0.2, 0.3, 0.4, and 1.0) are studied by measuring the Raman spectra at temperatures of 295 and 5 K. The changes in the spectra with Co doping are correlated with the decrease of the orthorhombic distortions. Surprisingly, more phonon line...

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Veröffentlicht in:Low temperature physics (Woodbury, N.Y.) N.Y.), 2003-11, Vol.29 (11), p.963-966
Hauptverfasser: Gnezdilov, V. P., Yeremenko, A. V., Pashkevich, Yu. G., Lemmens, P., Güntherodt, G., Shiryaev, S. V., Bychkov, G. L., Barilo, S. N.
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Sprache:eng
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Zusammenfassung:The Raman-active phonons in perovskite-like LaMn1−xCoxO3 (x=0, 0.2, 0.3, 0.4, and 1.0) are studied by measuring the Raman spectra at temperatures of 295 and 5 K. The changes in the spectra with Co doping are correlated with the decrease of the orthorhombic distortions. Surprisingly, more phonon lines are observed than are allowed for the rhombohedral LaCoO3 structure.
ISSN:1063-777X
1090-6517
DOI:10.1063/1.1614244