Neutron Scattering Studies of In-Plane Zone Boundary Phonons of YBa2Cu306.6 (Tc≃53 K) and YBa2Cu306.9 (Tc≃90 K)

Hiroshi Harashina, Shin Ichi Shamoto, Katsuaki Kodama, Masatoshi Sato, Kazuhisa Kakurai, Masakazu Nishi, B. J. Sternlieb, G. Shirane

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7 Citations (Scopus)

Abstract

Energies of several in-plane phonons have been measured as a function of temperature T up to about 500 K in the highest case, for crystals of YBa2Cu306.6 (TC = 53 K) and YBa2Cu3069 (Tc≃90 K), in which the magnitudes of the transport anomalies are very much different. For a phonon mode in the rather narrow q-region near the zone boundary, or for a mode well characterized by the dimerization type motion of nearest neighbor Cu atoms in the CuO2 planes, the T-dependence of the phonon-energy is larger for the former crystal than the latter one, suggesting that the T-dependence is stronger for samples with larger transport anomalies.

Original languageEnglish
Pages (from-to)1386-1395
Number of pages10
JournalJournal of the Physical Society of Japan
Volume63
Issue number4
DOIs
Publication statusPublished - 1994

All Science Journal Classification (ASJC) codes

  • Physics and Astronomy(all)

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