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Short-Range Ordering by Displacement of Tl and O Atoms in Tl2CaBa2cu2O8 Studied by Pair Distribution Function and Rietveld Analysis

Published online by Cambridge University Press:  21 February 2011

B. H. Toby ,
W. Dmowskia ,
T. Egami ,
J. D. Jorgensen ,
M. A. Subramanian ,
J. Gopalakrishnan  and
A. W. Sleight
B. H. Toby
Affiliation:
Department of Materials Science and Engineering and Laboratory for Research on the Structure of Matter, University of Pennsylvania, Philadelphia, Pennsylvania 19104–6272.
W. Dmowskia
Affiliation:
Department of Materials Science and Engineering and Laboratory for Research on the Structure of Matter, University of Pennsylvania, Philadelphia, Pennsylvania 19104–6272.
T. Egami
Affiliation:
Department of Materials Science and Engineering and Laboratory for Research on the Structure of Matter, University of Pennsylvania, Philadelphia, Pennsylvania 19104–6272.
J. D. Jorgensen
Affiliation:
Materials Science Division, Argonne National Laboratory, Argonne, Illinois 60439.
M. A. Subramanian
Affiliation:
Central Research and Development Department, E. I. du Pont de Nemours and Company, Experimental Station, Wilmington, Delaware 19898.
J. Gopalakrishnan
Affiliation:
Central Research and Development Department, E. I. du Pont de Nemours and Company, Experimental Station, Wilmington, Delaware 19898.
A. W. Sleight
Affiliation:
Central Research and Development Department, E. I. du Pont de Nemours and Company, Experimental Station, Wilmington, Delaware 19898.
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Abstract

Atomic pair distribution function analysis has demonstrated displacements of Tl and O atoms within the Tl-O layers with shortrange ordering of lower symmetry than the crystallographic lattice. Two models have been proposed for these displacements. Rietveld analysis neither confirms nor contradicts these models. Temperature-dependent PDF measurements show changes in local structure correlating with temperature.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 156: Symposium M – High Temperature Superconductors: Relationships Between Properties, Structure, and Solid State Chemistry , 1989 , 309
Copyright
Copyright © Materials Research Society 1989

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References

REFERENCES

1. Sheng, Z. Z. and Hermann, A. M., Nature (London) 332, 138 (1988); 332, 55, (1988).Google Scholar
2. Sheng, Z. Z., Hermann, A. M., All, A. El, Almasan, C., Estrada, J., Datta, T. and Matson, R. J., Phys. Rev. Lett. 60, 937 (1988).Google Scholar
3. Parkin, S. S. P., Lee, V. Y., Engler, E. M., Nazzal, A. I., Huang, T. C., Gorman, G., Savoy, R. and Beyers, R., Phys. Rev. Lett. 60, 2539 (1988); S. S. P. Parkin, V. Y. Lee, A. I. Nazzal, R. Savoy, T. C. Huang, G. Gorman, and R. Beyers, Phys. Rev. B38, 6531 (1988);Google Scholar
4. Subramanian, M. A., Calabrese, J. C., Torardi, C. C., Gopalakrishnan, J., Askew, T. R., Flippen, R. B., Morrissey, K. J., Chowdhry, U., Sleight, A. W., Nature (London) 332, 420 (1988);Google Scholar
5. Cox, D. E., Torardi, C. C., Subramanian, M. A., Gopalakrishnan, J. and Sleight, A. W., Phys. Rev. B 38, 225 (1988);Google Scholar
6. Dmowski, W., Toby, B. H., Egami, T., Subramanian, M. A., Gopalakrishnan, J. and Sleight, A. W., Phys. Rev. Lett. 61, 2608 (1988).Google Scholar
7. Howells, W. S., Price, D. L. and Montague, D. G., Liquid and Amorphous Sample Diffraction Data Analysis (computer programs); D. L. Price, IPNS Note 19, (program documentation).Google Scholar
8. Rotella, F. J. and Von Dreele, R. B., TOF Rietveld package, (computer programs and documentation).Google Scholar
9. Toby, B. H. and Egami, T., (computer programs).Google Scholar
10. Beyers, R., Parkin, S. S. P., Lee, V. Y., Nazzal, A. I., Savoy, R., Huang, T. C., Gorman, G. and Placa, S. La, Appl. Phys. Lett. 53, 432 (1988);Google Scholar
11. Shannon, R. D., Acta Cryst. A 32, 751 (1976).Google Scholar
12. Toby, B. H., Dmowski, W., Egami, T., Jorgensen, J. D., Subramanian, M. A., Gopalakrishnan, J. and Sleight, A. W., unpublished commumication.Google Scholar
13. Parise, J. B., Torardi, C. C., Subramanian, M. A., Gopalakrishnan, J. and Sleight, A. W. and Prince, E., Submitted to Physica C, unpublished communication.Google Scholar