Cold-neutron scattering study of La2-xSrxCuO4

M. Yamada, S. Shamoto, T. Kajitani

Research output: Contribution to journalConference articlepeer-review

Abstract

The generalized phonon density of states (GPDOS) for La2-xSrxCuO4 (x = 0.0, 0.08, 0.12, 0.15 and 0.21) powder samples are determined from inelastic cold-neutron scattering measurements using the TOF-type cold-neutron spectrometer, AGNES, mainly above the tetragonal-to-orthorhombic structural phase transition temperature. The softening of modes at about 12 meV was observed in the GPDOS for La1.85Sr0.15CuO4. This phenomenon is related with the instability of the K2NiF4-type tetragonal structure.

Original languageEnglish
Pages (from-to)1439-1442
Number of pages4
JournalJournal of Physics and Chemistry of Solids
Volume60
Issue number8
DOIs
Publication statusPublished - 1999
EventProceedings of the 1998 7th ISSP International Symposium Frontiers in Neutron Scattering Research (ISSP7) - Tokyo, Jpn
Duration: 1998 Nov 241998 Nov 27

All Science Journal Classification (ASJC) codes

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

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