Rietveld refinement of YBa{sub 2}Cu{sub 3-x}Ni{sub x}O{sub y} prepared by quenching and oxygen gettering

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Description

We have refined the structures for YBa{sub 2}Cu{sub 2.94}Ni{sub 0.06}O{sub y} (2% Ni) and YBa{sub 2}Cu{sub 2.80}Ni{sub 0.20}O{sub y} (6.67% Ni) at y {approximately} 6.95 and y {approximately} 6.5 contents. Oxygen was reduced by two independent methods: quenching from 690{degrees}C and oxygen gettering at 450{degrees}C. Cu-0 bond lengths were calculated based on Rietveld structure refinements for the various samples; they indicate the likely occupancy of Ni in the plane (Cu2) site of the 123 superconductor.

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7 p.

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Rodriguez, M.; Eatough, M. & Licci, F. October 1, 1995.

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  • Rodriguez, M.
  • Eatough, M. Sandia National Labs., Albuquerque, NM (United States)
  • Licci, F. Instito Materiali Speciali per Elettronica r Magnetismo del Consiglio Nazionale delle Ricerche, Parma (Italy)

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  • Sandia National Laboratories
    Publisher Info: Sandia National Labs., Albuquerque, NM (United States)
    Place of Publication: Albuquerque, New Mexico

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Description

We have refined the structures for YBa{sub 2}Cu{sub 2.94}Ni{sub 0.06}O{sub y} (2% Ni) and YBa{sub 2}Cu{sub 2.80}Ni{sub 0.20}O{sub y} (6.67% Ni) at y {approximately} 6.95 and y {approximately} 6.5 contents. Oxygen was reduced by two independent methods: quenching from 690{degrees}C and oxygen gettering at 450{degrees}C. Cu-0 bond lengths were calculated based on Rietveld structure refinements for the various samples; they indicate the likely occupancy of Ni in the plane (Cu2) site of the 123 superconductor.

Physical Description

7 p.

Notes

OSTI as DE96000788

Source

  • 44. annual Denver x-ray conference, Colorado Springs, CO (United States), 31 Jul - 4 Aug 1995

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  • Other: DE96000788
  • Report No.: SAND--95-2254C
  • Report No.: CONF-9507175--1
  • Grant Number: AC04-94AL85000
  • Office of Scientific & Technical Information Report Number: 110738
  • Archival Resource Key: ark:/67531/metadc622346

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  • October 1, 1995

Added to The UNT Digital Library

  • June 16, 2015, 7:43 a.m.

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  • April 14, 2016, 12:24 p.m.

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Rodriguez, M.; Eatough, M. & Licci, F. Rietveld refinement of YBa{sub 2}Cu{sub 3-x}Ni{sub x}O{sub y} prepared by quenching and oxygen gettering, article, October 1, 1995; Albuquerque, New Mexico. (digital.library.unt.edu/ark:/67531/metadc622346/: accessed September 22, 2017), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.