Magnon and phonon Raman scattering in Pr2CuO4

S. Sugai, T. Kobayashi, J. Akimitsu

Research output: Contribution to journalArticle

12 Citations (Scopus)

Abstract

The spin excitations and the lattice vibrations in the insulator phase of the electronic superconductor Pr2CuO4 were investigated by wide-range Raman spectroscopy. The origin of the anomalous magnon spectra as in the case of the hole superconducting cuprates are assigned to the four-spin cyclic exchange interactions. The obtained two-spin superexchange integral J is 1040 cm-1. The phonon energies are 233 cm-1 in Alg, 287 cm-1 in Blg, and 165 and 474 cm-1 in Eg.

Original languageEnglish
Pages (from-to)599-601
Number of pages3
JournalSolid State Communications
Volume74
Issue number7
DOIs
Publication statusPublished - May 1990
Externally publishedYes

ASJC Scopus subject areas

  • Chemistry(all)
  • Condensed Matter Physics
  • Materials Chemistry

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