Magnons and phonons in Nd2CuO4

Shunji Sugai, Tamaki Kobayashi, Jun Akimitsu

Research output: Contribution to journalArticle

59 Citations (Scopus)

Abstract

Antiferromagnetic magnons Nd2CuO4, which is the mother material of the electron superconductor (Nd1-xCex)2CuO4-y, are observed by Raman scattering. The effective exchange integral estimated from the two-magnon peak energy is 1070 cm-1, which is unexpectedly large in spite of the large Cu-Cu atomic distance compared with those in other superconducting oxides. Lattice vibrations are also investigated. A large two-phonon peak due to the intralayer breathing mode is observed at 1178 cm-1.. AE

Original languageEnglish
Pages (from-to)2686-2689
Number of pages4
JournalPhysical Review B
Volume40
Issue number4
DOIs
Publication statusPublished - Jan 1 1989
Externally publishedYes

ASJC Scopus subject areas

  • Condensed Matter Physics

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