Residual surface stress measurements in YBa                         2                         Cu                         3                         O                          x                          superconductors

Kh A. Ziq; J. Shirokoff; S. N. Alfaer

doi:10.1016/j.apsusc.2005.01.040

Residual surface stress measurements in YBa ₂ Cu ₃ O _x superconductors

Kh A. Ziq, J. Shirokoff^*, S. N. Alfaer

^*Corresponding author for this work

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

Abstract

XRD and residual surface stress (sin ² ψ) measurements were carried out on YBa ₂ Cu ₃ O _x superconductors with varying oxygen stoichiometry (6.3 < x < 7.0). Slopes of the surface strain versus sin ² ψ were plotted against oxygen content for certain reflections. Compressional surface stress has been found along the c-axis, while a tensile surface stress has been observed along the ab-plane. Both surface stresses were found to vary slightly with oxygen content. These findings qualitatively agree with a very small hydrostatic pressure effect on T _c for fully oxygenated YBa ₂ Cu ₃ O _x (x = 7) compared to oxygen deficient material at the surface.

Original language	English
Pages (from-to)	916-920
Number of pages	5
Journal	Applied Surface Science
Volume	252
Issue number	4
DOIs	https://doi.org/10.1016/j.apsusc.2005.01.040
State	Published - 15 Nov 2005

Bibliographical note

Funding Information:
The support provided by King Fahd University of Petroleum and Minerals is gratefully acknowledged. J. Shirokoff would like to thank the Natural Sciences and Engineering Research Council of Canada for financial support.

Keywords

Surface residual stress
X-ray diffraction
sin ψ analysis

ASJC Scopus subject areas

General Chemistry
Condensed Matter Physics
General Physics and Astronomy
Surfaces and Interfaces
Surfaces, Coatings and Films

Access to Document

10.1016/j.apsusc.2005.01.040

Cite this

Ziq, K. A., Shirokoff, J., & Alfaer, S. N. (2005). Residual surface stress measurements in YBa ₂ Cu ₃ O _x superconductors Applied Surface Science, 252(4), 916-920. https://doi.org/10.1016/j.apsusc.2005.01.040

Ziq, Kh A. ; Shirokoff, J. ; Alfaer, S. N. / Residual surface stress measurements in YBa ₂ Cu ₃ O _x superconductors In: Applied Surface Science. 2005 ; Vol. 252, No. 4. pp. 916-920.

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title = " Residual surface stress measurements in YBa 2 Cu 3 O x superconductors ",

abstract = " XRD and residual surface stress (sin 2 ψ) measurements were carried out on YBa 2 Cu 3 O x superconductors with varying oxygen stoichiometry (6.3 < x < 7.0). Slopes of the surface strain versus sin 2 ψ were plotted against oxygen content for certain reflections. Compressional surface stress has been found along the c-axis, while a tensile surface stress has been observed along the ab-plane. Both surface stresses were found to vary slightly with oxygen content. These findings qualitatively agree with a very small hydrostatic pressure effect on T c for fully oxygenated YBa 2 Cu 3 O x (x = 7) compared to oxygen deficient material at the surface.",

keywords = "Surface residual stress, X-ray diffraction, sin ψ analysis",

author = "Ziq, \{Kh A.\} and J. Shirokoff and Alfaer, \{S. N.\}",

note = "Funding Information: The support provided by King Fahd University of Petroleum and Minerals is gratefully acknowledged. J. Shirokoff would like to thank the Natural Sciences and Engineering Research Council of Canada for financial support. ",

year = "2005",

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day = "15",

doi = "10.1016/j.apsusc.2005.01.040",

language = "English",

volume = "252",

pages = "916--920",

journal = "Applied Surface Science",

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Ziq, KA, Shirokoff, J & Alfaer, SN 2005, ' Residual surface stress measurements in YBa ₂ Cu ₃ O _x superconductors ', Applied Surface Science, vol. 252, no. 4, pp. 916-920. https://doi.org/10.1016/j.apsusc.2005.01.040

Residual surface stress measurements in YBa ₂ Cu ₃ O _x superconductors . / Ziq, Kh A.; Shirokoff, J.; Alfaer, S. N.
In: Applied Surface Science, Vol. 252, No. 4, 15.11.2005, p. 916-920.

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

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T1 - Residual surface stress measurements in YBa 2 Cu 3 O x superconductors

AU - Ziq, Kh A.

AU - Shirokoff, J.

AU - Alfaer, S. N.

N1 - Funding Information: The support provided by King Fahd University of Petroleum and Minerals is gratefully acknowledged. J. Shirokoff would like to thank the Natural Sciences and Engineering Research Council of Canada for financial support.

PY - 2005/11/15

Y1 - 2005/11/15

N2 - XRD and residual surface stress (sin 2 ψ) measurements were carried out on YBa 2 Cu 3 O x superconductors with varying oxygen stoichiometry (6.3 < x < 7.0). Slopes of the surface strain versus sin 2 ψ were plotted against oxygen content for certain reflections. Compressional surface stress has been found along the c-axis, while a tensile surface stress has been observed along the ab-plane. Both surface stresses were found to vary slightly with oxygen content. These findings qualitatively agree with a very small hydrostatic pressure effect on T c for fully oxygenated YBa 2 Cu 3 O x (x = 7) compared to oxygen deficient material at the surface.

AB - XRD and residual surface stress (sin 2 ψ) measurements were carried out on YBa 2 Cu 3 O x superconductors with varying oxygen stoichiometry (6.3 < x < 7.0). Slopes of the surface strain versus sin 2 ψ were plotted against oxygen content for certain reflections. Compressional surface stress has been found along the c-axis, while a tensile surface stress has been observed along the ab-plane. Both surface stresses were found to vary slightly with oxygen content. These findings qualitatively agree with a very small hydrostatic pressure effect on T c for fully oxygenated YBa 2 Cu 3 O x (x = 7) compared to oxygen deficient material at the surface.

KW - Surface residual stress

KW - X-ray diffraction

KW - sin ψ analysis

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Ziq KA, Shirokoff J, Alfaer SN. Residual surface stress measurements in YBa ₂ Cu ₃ O _x superconductors Applied Surface Science. 2005 Nov 15;252(4):916-920. doi: 10.1016/j.apsusc.2005.01.040

Residual surface stress measurements in YBa 2 Cu 3 O x superconductors