Phonon Raman scattering of R2CuO4 (R = Pr, Nd, Sm, and Gd)

Masayuki Udagawa, Yoshinori Nagaoka, Norio Ogita, Miki Masada, Jun Akimitsu, Kohji Ohbayashi

Research output: Contribution to journalArticle

Abstract

For Gd2CuO4, a new symmetry-forbidden phonon for the tetragonal T′ structure is observed. This implies that oxygen in the CuO2 plane is locally distorted along the CuO2 plane. Such distortion has never been observed for other T′-type superconductors, which show superconductivity by Ce doping. The disappearance of superconductivity for Gd can be correlated with the appearance of the distortion due to oxygen in the CuO2 plane.

Original languageEnglish
Pages (from-to)449-451
Number of pages3
JournalJournal of Superconductivity
Volume7
Issue number2
DOIs
Publication statusPublished - Apr 1994
Externally publishedYes

Fingerprint

Phonon scattering
Superconductivity
Raman scattering
superconductivity
Raman spectra
Oxygen
oxygen
Superconducting materials
Doping (additives)
symmetry

Keywords

  • local distortion
  • phonon
  • Raman scattering
  • T′ structure

ASJC Scopus subject areas

  • Condensed Matter Physics
  • Physics and Astronomy (miscellaneous)
  • Electronic, Optical and Magnetic Materials

Cite this

Udagawa, M., Nagaoka, Y., Ogita, N., Masada, M., Akimitsu, J., & Ohbayashi, K. (1994). Phonon Raman scattering of R2CuO4 (R = Pr, Nd, Sm, and Gd). Journal of Superconductivity, 7(2), 449-451. https://doi.org/10.1007/BF00724587

Phonon Raman scattering of R2CuO4 (R = Pr, Nd, Sm, and Gd). / Udagawa, Masayuki; Nagaoka, Yoshinori; Ogita, Norio; Masada, Miki; Akimitsu, Jun; Ohbayashi, Kohji.

In: Journal of Superconductivity, Vol. 7, No. 2, 04.1994, p. 449-451.

Research output: Contribution to journalArticle

Udagawa, M, Nagaoka, Y, Ogita, N, Masada, M, Akimitsu, J & Ohbayashi, K 1994, 'Phonon Raman scattering of R2CuO4 (R = Pr, Nd, Sm, and Gd)', Journal of Superconductivity, vol. 7, no. 2, pp. 449-451. https://doi.org/10.1007/BF00724587
Udagawa, Masayuki ; Nagaoka, Yoshinori ; Ogita, Norio ; Masada, Miki ; Akimitsu, Jun ; Ohbayashi, Kohji. / Phonon Raman scattering of R2CuO4 (R = Pr, Nd, Sm, and Gd). In: Journal of Superconductivity. 1994 ; Vol. 7, No. 2. pp. 449-451.
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