Investigation of two-well potential of the apex oxygen in YBa2Cu2O7−x crystals by Raman spectroscopy

L. V. Gasparov; V. D. Kulakovskii; V. B. Timofeev; E. Ya. Sherman

doi:10.1007/BF00732237

Investigation of two-well potential of the apex oxygen in YBa2Cu2O7−x crystals by Raman spectroscopy

L. V. Gasparov, V. D. Kulakovskii, V. B. Timofeev, E. Ya. Sherman

Russian Academy of Sciences

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

Abstract

The dependence of oxygen modes intensity on pump power and temperature in YBa2Cu3O7−x single crystals with different oxygen contents (0<x<1) has been measured. When YBa2Cu3O6.5 crystals are heated, the peak intensity of the 500-cm−1 band (apex oxygen) decreases, that of the 590-cm−1 band (“defect” mode) increases, and the peak intensity of the 330-cm−1 band (plain oxygen) remains unchanged. The resonant dependence of the apex oxygen, and the intensity of the “defect” modes have also been measured. In order to explain the experimental results we suppose that the apex oxygen ion is in a double-well potential.

Original language	American English
Journal	Journal of Superconductivity
Volume	8
DOIs	https://doi.org/10.1007/BF00732237
State	Published - Feb 1 1995
Externally published	Yes

Disciplines

Physics
Quantum Physics
Condensed Matter Physics

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title = "Investigation of two-well potential of the apex oxygen in YBa2Cu2O7−x crystals by Raman spectroscopy",

abstract = "The dependence of oxygen modes intensity on pump power and temperature in YBa2Cu3O7−x single crystals with different oxygen contents (0<x<1) has been measured. When YBa2Cu3O6.5 crystals are heated, the peak intensity of the 500-cm−1 band (apex oxygen) decreases, that of the 590-cm−1 band (“defect” mode) increases, and the peak intensity of the 330-cm−1 band (plain oxygen) remains unchanged. The resonant dependence of the apex oxygen, and the intensity of the “defect” modes have also been measured. In order to explain the experimental results we suppose that the apex oxygen ion is in a double-well potential.",

author = "Gasparov, {L. V.} and Kulakovskii, {V. D.} and Timofeev, {V. B.} and Sherman, {E. Ya.}",

note = "The dependence of oxygen modes intensity on pump power and temperature in YBa2Cu3O7−x single crystals with different oxygen contents (0<x<1) has been measured. When YBa2Cu3O6.5 crystals are heated, th",

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T1 - Investigation of two-well potential of the apex oxygen in YBa2Cu2O7−x crystals by Raman spectroscopy

AU - Gasparov, L. V.

AU - Kulakovskii, V. D.

AU - Timofeev, V. B.

AU - Sherman, E. Ya.

N1 - The dependence of oxygen modes intensity on pump power and temperature in YBa2Cu3O7−x single crystals with different oxygen contents (0<x<1) has been measured. When YBa2Cu3O6.5 crystals are heated, th

PY - 1995/2/1

Y1 - 1995/2/1

N2 - The dependence of oxygen modes intensity on pump power and temperature in YBa2Cu3O7−x single crystals with different oxygen contents (0<x<1) has been measured. When YBa2Cu3O6.5 crystals are heated, the peak intensity of the 500-cm−1 band (apex oxygen) decreases, that of the 590-cm−1 band (“defect” mode) increases, and the peak intensity of the 330-cm−1 band (plain oxygen) remains unchanged. The resonant dependence of the apex oxygen, and the intensity of the “defect” modes have also been measured. In order to explain the experimental results we suppose that the apex oxygen ion is in a double-well potential.

AB - The dependence of oxygen modes intensity on pump power and temperature in YBa2Cu3O7−x single crystals with different oxygen contents (0<x<1) has been measured. When YBa2Cu3O6.5 crystals are heated, the peak intensity of the 500-cm−1 band (apex oxygen) decreases, that of the 590-cm−1 band (“defect” mode) increases, and the peak intensity of the 330-cm−1 band (plain oxygen) remains unchanged. The resonant dependence of the apex oxygen, and the intensity of the “defect” modes have also been measured. In order to explain the experimental results we suppose that the apex oxygen ion is in a double-well potential.

UR - https://link.springer.com/article/10.1007/BF00732237

U2 - 10.1007/BF00732237

DO - 10.1007/BF00732237

M3 - Article

SN - 0896-1107

VL - 8

JO - Journal of Superconductivity

JF - Journal of Superconductivity

ER -

Investigation of two-well potential of the apex oxygen in YBa2Cu2O7−x crystals by Raman spectroscopy

Abstract

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