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Structural and electronic properties of indium-doped YBa2Cu3Oσ

Published online by Cambridge University Press:  08 February 2011

Georg Weidlich ,
Michael Goelz ,
Ruiping Wang ,
William E. Evenson ,
John A. Gardner ,
Douglas A. Keszler ,
James A. Sommers  and
Jerome E. Ostenson
Georg Weidlich
Affiliation:
Department of Physics and Center for Advanced Materials Research, Oregon State University, Corvallis, Oregon 97331–6507
Michael Goelz
Affiliation:
Department of Physics and Center for Advanced Materials Research, Oregon State University, Corvallis, Oregon 97331–6507
Ruiping Wang
Affiliation:
Department of Physics and Center for Advanced Materials Research, Oregon State University, Corvallis, Oregon 97331–6507
William E. Evenson*
Affiliation:
Department of Physics and Center for Advanced Materials Research, Oregon State University, Corvallis, Oregon 97331–6507
John A. Gardner
Affiliation:
Department of Physics and Center for Advanced Materials Research, Oregon State University, Corvallis, Oregon 97331–6507
Douglas A. Keszler
Affiliation:
Department of Chemistry and Center for Advanced Materials Research, Oregon State University, Gilbert Hall 153, Corvallis, Oregon 97331–4003
James A. Sommers
Affiliation:
Teledyne Wah Chang Albany, Albany, Oregon 97321
Jerome E. Ostenson
Affiliation:
Ames Laboratory and Department of Physics, Iowa State University, Ames, Iowa 50011
*
a)Permanent address: Department of Physics & Astronomy, Brigham Young University, Provo, Utah 84602.
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Abstract

We have measured x-ray diffraction patterns and Meissner flux exclusion of YBa2Cu3Oσ containing indium. All samples were synthesized at temperatures near 940 °C, and the data indicate the indium atomic solubility to be approximately 3% per formula unit. At the solubility limit Tc is reduced from 92.7 K to 91.3 K relative to undoped samples, and the total magnetic flux excluded is reduced from approximately 40% to about 10%. For samples of formula InxY1−xBa2Cu3Oσ concentrations of other Y–Ba–Cu oxide phases are low and do not depend systematically on x. These results indicate that indium substitutes predominantly for yttrium when x is small.

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Type
Articles
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Journal of Materials Research , Volume 6 , Issue 3 , March 1991 , pp. 446 - 449
Copyright
Copyright © Materials Research Society 1991

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References

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