Anharmonicity of the bridging oxygen vibrations in YBa2Cu3O(7-x) crystals

Lev V. Gasparov; Vladimir D. Kulakovskii; Vladislav Timofeev; E. Ia. Sherman

Anharmonicity of the bridging oxygen vibrations in YBa2Cu3O(7-x) crystals

Lev V. Gasparov, Vladimir D. Kulakovskii, Vladislav Timofeev, E. Ia. Sherman

Russian Academy of Sciences

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

Abstract

Raman spectroscopy was used to investigate the behavior of oxygen vibration modes in YBa2Cu3O(7-x) crystals with values of x varying between 0 and 1 as a function of temperature and the exciting radiation power. It was found that crystals where the value of x was less than 1 (e.g., YBa2Cu3O6.5) exhibited a two-phonon Raman scattering. To explain the behavior of the modes investigated, a bridging O4 oxygen ion is suggested to be a two-well anharmonic potential.

Original language	English
Journal	Zhurnal Eksperimental'noi i Teoreticheskoi Fiziki
State	Published - Nov 1991

Disciplines

Ceramic Materials
Atomic, Molecular and Optical Physics
Condensed Matter Physics

Cite this

@article{fbb3a2b53c3441378d387dcfb353d903,

title = "Anharmonicity of the bridging oxygen vibrations in YBa2Cu3O(7-x) crystals",

abstract = "Raman spectroscopy was used to investigate the behavior of oxygen vibration modes in YBa2Cu3O(7-x) crystals with values of x varying between 0 and 1 as a function of temperature and the exciting radiation power. It was found that crystals where the value of x was less than 1 (e.g., YBa2Cu3O6.5) exhibited a two-phonon Raman scattering. To explain the behavior of the modes investigated, a bridging O4 oxygen ion is suggested to be a two-well anharmonic potential.",

author = "Gasparov, {Lev V.} and Kulakovskii, {Vladimir D.} and Vladislav Timofeev and Sherman, {E. Ia.}",

year = "1991",

month = nov,

language = "English",

}

TY - JOUR

T1 - Anharmonicity of the bridging oxygen vibrations in YBa2Cu3O(7-x) crystals

AU - Gasparov, Lev V.

AU - Kulakovskii, Vladimir D.

AU - Timofeev, Vladislav

AU - Sherman, E. Ia.

PY - 1991/11

Y1 - 1991/11

N2 - Raman spectroscopy was used to investigate the behavior of oxygen vibration modes in YBa2Cu3O(7-x) crystals with values of x varying between 0 and 1 as a function of temperature and the exciting radiation power. It was found that crystals where the value of x was less than 1 (e.g., YBa2Cu3O6.5) exhibited a two-phonon Raman scattering. To explain the behavior of the modes investigated, a bridging O4 oxygen ion is suggested to be a two-well anharmonic potential.

AB - Raman spectroscopy was used to investigate the behavior of oxygen vibration modes in YBa2Cu3O(7-x) crystals with values of x varying between 0 and 1 as a function of temperature and the exciting radiation power. It was found that crystals where the value of x was less than 1 (e.g., YBa2Cu3O6.5) exhibited a two-phonon Raman scattering. To explain the behavior of the modes investigated, a bridging O4 oxygen ion is suggested to be a two-well anharmonic potential.

UR - http://adsabs.harvard.edu/abs/1991ZhETF.100.1681G

M3 - Article

SN - 0044-4510

JO - Zhurnal Eksperimental'noi i Teoreticheskoi Fiziki

JF - Zhurnal Eksperimental'noi i Teoreticheskoi Fiziki

ER -

Anharmonicity of the bridging oxygen vibrations in YBa2Cu3O(7-x) crystals

Abstract

Disciplines

Other files and links

Cite this