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

Автор(и)

  • V.P. Gnezdilov B. Verkin Institute for Low Temperature Physics and Engineering of the National Academy of Sciences of Ukraine, 47 Lenin Ave., Kharkov 61164, Ukraine
  • Yu.G. Pashkevich A.A. Galkin Donetsk Phystech of the National Academy of Scienses of Ukraine 72 R. Luksemburg str., Donetsk 83114, Ukraine
  • A.V. Yeremenko B. Verkin Institute for Low Temperature Physics and Engineering of the National Academy of Sciences of Ukraine, 47 Lenin Ave., Kharkov 61164, Ukraine
  • P. Lemmens 2.Physikalisches Institut, RWTH Aachen, D-52056 Aachen, Germany
  • G. Guntherodt 2.Physikalisches Institut, RWTH Aachen, D-52056 Aachen, Germany
  • S.V. Shiryaev Institute of Physics of Solids & Semiconductors, Academy of Sciences, Minsk 220072, Belarus
  • G.L. Bychkov Institute of Physics of Solids & Semiconductors, Academy of Sciences, Minsk 220072, Belarus
  • S.N. Barilo Institute of Physics of Solids & Semiconductors, Academy of Sciences, Minsk 220072, Belarus

Ключові слова:

PACS: 78.30.Hv, 63.20.–e

Анотація

The Raman-active phonons in perovskite-like LaMn1–xCoxO3 (x = 0, 0.2, 0.3, 0.4, and 1.0) were studied by measuring Raman spectra at temperatures of 295 and 5 K. The changes in the spectra with Co doping are correlated with the decrease of orthorhombic distortions. Surprisingly more phonon lines than allowed for the rhombohedral LaCoO3 structure were observed.

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Опубліковано

2003-09-30

Як цитувати

(1)
Gnezdilov, V.; Pashkevich, Y.; Yeremenko, A.; Lemmens, P.; Guntherodt, G.; Shiryaev, S.; Bychkov, G.; Barilo, S. Phonon Raman Scattering in LaMn1-xCoxO3 (x = 0, 0.2, 0.3, 0.4, and 1.0). Fiz. Nizk. Temp. 2003, 29, 1269-1272.

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