Evidence for a structural change in TSMG Y123 at 225 K

A. R. Anderson; M. Murakami; K. Nagashima; G. J. Russell

doi:10.1016/S0921-4534(98)00358-X

Evidence for a structural change in TSMG Y123 at 225 K

A. R. Anderson, M. Murakami, K. Nagashima, G. J. Russell

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

16 Citations (Scopus)

Abstract

This paper reports on an ultrasonic study at 85 kHz and 485 kHz of melt-textured Y123 (YBa₂Cu₃O_7-δ) where a possible structural change has been identified in the 220 K region. Work on oxygenated and partially deoxygenated samples has shown that the change is associated with oxygen in the samples and that the activation energy for the process is 110 meV. The conclusions are based on a qualitative and quantitative description of ultrasonic attenuation and ultrasonic velocity changes in the material as a result of slow thermal cycling and quenching experiments.

Original language	English
Pages (from-to)	15-20
Number of pages	6
Journal	Physica C: Superconductivity and its applications
Volume	306
Issue number	1-2
DOIs	https://doi.org/10.1016/S0921-4534(98)00358-X
Publication status	Published - 1998 Sept 10
Externally published	Yes

Keywords

Activation energy
Internal friction
Structural phase transition
Ultrasonic attenuation

ASJC Scopus subject areas

Electronic, Optical and Magnetic Materials
Condensed Matter Physics
Energy Engineering and Power Technology
Electrical and Electronic Engineering

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10.1016/S0921-4534(98)00358-X

Cite this

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title = "Evidence for a structural change in TSMG Y123 at 225 K",

abstract = "This paper reports on an ultrasonic study at 85 kHz and 485 kHz of melt-textured Y123 (YBa2Cu3O7-δ) where a possible structural change has been identified in the 220 K region. Work on oxygenated and partially deoxygenated samples has shown that the change is associated with oxygen in the samples and that the activation energy for the process is 110 meV. The conclusions are based on a qualitative and quantitative description of ultrasonic attenuation and ultrasonic velocity changes in the material as a result of slow thermal cycling and quenching experiments.",

keywords = "Activation energy, Internal friction, Structural phase transition, Ultrasonic attenuation",

author = "Anderson, {A. R.} and M. Murakami and K. Nagashima and Russell, {G. J.}",

note = "Funding Information: A. Anderson had the support of a JISTEC fellowship while completing this research and NEDO partially supported this project. Copyright: Copyright 2018 Elsevier B.V., All rights reserved.",

year = "1998",

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doi = "10.1016/S0921-4534(98)00358-X",

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T1 - Evidence for a structural change in TSMG Y123 at 225 K

AU - Anderson, A. R.

AU - Murakami, M.

AU - Nagashima, K.

AU - Russell, G. J.

N1 - Funding Information: A. Anderson had the support of a JISTEC fellowship while completing this research and NEDO partially supported this project. Copyright: Copyright 2018 Elsevier B.V., All rights reserved.

PY - 1998/9/10

Y1 - 1998/9/10

N2 - This paper reports on an ultrasonic study at 85 kHz and 485 kHz of melt-textured Y123 (YBa2Cu3O7-δ) where a possible structural change has been identified in the 220 K region. Work on oxygenated and partially deoxygenated samples has shown that the change is associated with oxygen in the samples and that the activation energy for the process is 110 meV. The conclusions are based on a qualitative and quantitative description of ultrasonic attenuation and ultrasonic velocity changes in the material as a result of slow thermal cycling and quenching experiments.

AB - This paper reports on an ultrasonic study at 85 kHz and 485 kHz of melt-textured Y123 (YBa2Cu3O7-δ) where a possible structural change has been identified in the 220 K region. Work on oxygenated and partially deoxygenated samples has shown that the change is associated with oxygen in the samples and that the activation energy for the process is 110 meV. The conclusions are based on a qualitative and quantitative description of ultrasonic attenuation and ultrasonic velocity changes in the material as a result of slow thermal cycling and quenching experiments.

KW - Activation energy

KW - Internal friction

KW - Structural phase transition

KW - Ultrasonic attenuation

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Evidence for a structural change in TSMG Y123 at 225 K

Abstract

Keywords

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