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

doi:10.1143/JPSJ.63.1386

Neutron Scattering Studies of In-Plane Zone Boundary Phonons of YBa₂Cu_306.6 (Tc≃53 K) and YBa₂Cu_306.9 (Tc≃90 K)

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

Department of Physics

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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 language	English
Pages (from-to)	1386-1395
Number of pages	10
Journal	Journal of the Physical Society of Japan
Volume	63
Issue number	4
DOIs	https://doi.org/10.1143/JPSJ.63.1386
Publication status	Published - 1994

All Science Journal Classification (ASJC) codes

Physics and Astronomy(all)

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10.1143/JPSJ.63.1386

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

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.",

author = "Hiroshi Harashina and Shamoto, {Shin Ichi} and Katsuaki Kodama and Masatoshi Sato and Kazuhisa Kakurai and Masakazu Nishi and Sternlieb, {B. J.} and G. Shirane",

year = "1994",

doi = "10.1143/JPSJ.63.1386",

language = "English",

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publisher = "Physical Society of Japan",

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}

Neutron Scattering Studies of In-Plane Zone Boundary Phonons of YBa₂Cu_306.6 (Tc≃53 K) and YBa₂Cu_306.9 (Tc≃90 K). / Harashina, Hiroshi; Shamoto, Shin Ichi; Kodama, Katsuaki; Sato, Masatoshi; Kakurai, Kazuhisa; Nishi, Masakazu; Sternlieb, B. J.; Shirane, G.

In: Journal of the Physical Society of Japan, Vol. 63, No. 4, 1994, p. 1386-1395.

Research output: Contribution to journal › Article › peer-review

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.

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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Neutron Scattering Studies of In-Plane Zone Boundary Phonons of YBa₂Cu_306.6 (Tc≃53 K) and YBa₂Cu_306.9 (Tc≃90 K)

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