Short range order structures in Y-Pr-Ba-Cu-O system studied by X-ray absorption fine structure (XAFS) techniques

Y. H. Kao; A. Krol; Z. H. Ming; C. S. Lin; Y. L. Soo; C. X. Gu; I. S. Yang; C. C. Tsuei

doi:10.1557/PROC-209-759

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Conference paper

Short range order structures in Y-Pr-Ba-Cu-O system studied by X-ray absorption fine structure (XAFS) techniques

Y. H. Kao, A. Krol, Z. H. Ming, C. S. Lin, Y. L. Soo, C. X. Gu, I. S. Yang and C. C. Tsuei

Materials Research Society Symposia Proceedings. Materials Research Society, Vol.209, pp.759-764

1991

DOI: https://doi.org/10.1557/PROC-209-759

Abstract

Short Range Order Strucrures;Y-Pr-Ba-Cu-O;System Studied;X-Ray Absorption Fine Structure (XAFS);Techniques

Local structure around the constituent atoms in the compound system Y1-xPrxBa2CU3O7-y has been investigated by means of x-ray absorption fine structure (XAFS) techniques. By comparing the local structure in the compound x=1 with its counterpart x=0, the XAFS results provide a direct evidence that Pr has replaced Y in the material. The nearest-neighbor structure in the CuO2 planes seems to remain intact as × varies from 0 to 1, indicating that substitution of Pr for Y does not disturb the local distribution of holes in the CuO2 planes. We suggest that local disorder and distortions in the second-neighbor bonding configuration could be responsible for suppression of superconductivity with increasing Pr content in the system.

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Title: Short range order structures in Y-Pr-Ba-Cu-O system studied by X-ray absorption fine structure (XAFS) techniques
Creators - without role: Y. H. Kao - University at Buffalo, State University of New York
A. Krol - University at Buffalo, State University of New York
Z. H. Ming - University at Buffalo, State University of New York
C. S. Lin - University at Buffalo, State University of New York
Y. L. Soo - University at Buffalo, State University of New York
C. X. Gu - University at Buffalo, State University of New York
I. S. Yang
C. C. Tsuei
Identifiers: 9957773834406774
Academic Unit: Science and Technology of Synchrotron Light Source Program, College of Science, National Tsing Hua University
Language: Traditional Chinese
Resource Type: Conference paper
Publication Details: Materials Research Society Symposia Proceedings. Materials Research Society, Vol.209, pp.759-764

Short range order structures in Y-Pr-Ba-Cu-O system studied by X-ray absorption fine structure (XAFS) techniques

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