Phonon anomaly of La1.85Sr0.15CuO4 studied by neutron scattering

M. Arai, K. Yamada, S. Hosoya, S. Wakimoto, K. Ubukata, M. Fujita, T. Nishijima, T. Otomo, Y. Endoh

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5 Citations (Scopus)


Inelastic neutron-scattering studies were performed on a powder and an assembly of single crystals of La1.85Sr0.15CuO4, Tc ∼ 36 K. Phonon density of states and the Q-dependence of the dynamic structure factor as well, as the details of the phonon-scattering function, were investigated as a function of temperature. We found that specific phonon modes at the Brillouin zone centre and the zone boundary showed anomalous behaviour at Tc. Thus we suggest a strong correlation between the phonon states and the superconducting states.

Original languageEnglish
Pages (from-to)75-77
Number of pages3
JournalPhysica B: Physics of Condensed Matter
Issue numberC
Publication statusPublished - 1995 Aug 1
Externally publishedYes

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics
  • Electrical and Electronic Engineering


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