TY - JOUR
T1 - Neutron Scattering Studies of In-Plane Zone Boundary Phonons of YBa2Cu306.6 (Tc≃53 K) and YBa2Cu306.9 (Tc≃90 K)
AU - Harashina, Hiroshi
AU - Shamoto, Shin Ichi
AU - Kodama, Katsuaki
AU - Sato, Masatoshi
AU - Kakurai, Kazuhisa
AU - Nishi, Masakazu
AU - Sternlieb, B. J.
AU - Shirane, G.
N1 - Copyright:
Copyright 2016 Elsevier B.V., All rights reserved.
PY - 1994
Y1 - 1994
N2 - 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.
AB - 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.
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U2 - 10.1143/JPSJ.63.1386
DO - 10.1143/JPSJ.63.1386
M3 - Article
AN - SCOPUS:21344478727
VL - 63
SP - 1386
EP - 1395
JO - Journal of the Physical Society of Japan
JF - Journal of the Physical Society of Japan
SN - 0031-9015
IS - 4
ER -