Hostname: page-component-8448b6f56d-xtgtn Total loading time: 0 Render date: 2024-04-25T05:10:37.392Z Has data issue: false hasContentIssue false
  • English
  • Français

Magnetic Properties of Pb2Sr2Eu1-xCaxCu308+z Superconductors*

Published online by Cambridge University Press:  28 February 2011

C.D. Nelson ,
W.P. Pratt Jr.  and
P.P. Vaishnava
C.D. Nelson
Affiliation:
Department of Physics and Astronomy, Michigan State University, East Lansing, MI 48824–1116
W.P. Pratt Jr.
Affiliation:
Department of Physics and Astronomy, Michigan State University, East Lansing, MI 48824–1116
P.P. Vaishnava
Affiliation:
GMI Engineering and Mangement Institute, Flint, MI 48504
Get access

Abstract

X-ray diffraction and magnetic measurements using a SQUID magnetometer have been performed on the title compounds for 0 ≤ x ≤ 0.9. For 0 ≤ x ≤ 0.5, we have single phase materials. However, a small percentage of an impurity phase is noticed in the x = 0.7 sample, and the x = 0.9 sample is clearly not a single phase material. The transition temperature, the diamagnetic-shielding effect, and the Meissner-effect increase as x becomes larger. We have obtained, approximately, Hc1 ≤ 700 oe and Hc2 ≥ 800 k0e.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 169: Symposium M – High Temperature Superconductors: Fundamental Properties and Novel Materials Processing , 1989 , 1077
Copyright
Copyright © Materials Research Society 1990

Access options

Get access to the full version of this content by using one of the access options below. (Log in options will check for institutional or personal access. Content may require purchase if you do not have access.)

Footnotes

*

Work supported by Center for Fundamental Materials Research of Michigan State University

References

1 Cava, R.J., Batlogg, B., Krajewski, J.J., Rupp, L.W., Schneemeyer, L.F., Siegrist, T., vanDover, R.B., Marsh, P., Peck, W.F. Jr., Gallagher, P.K., Glarum, S.H., Marshall, J.H., Farrow, R.C., Waszczak, J.V., Hull, R., and Trevor, P., Nature 336, 211 (1988).Google Scholar
2 Cava, R.J., Marezio, M., Krajewski, J.J., Peck, W.F. Jr., Santoro, A., and Beech, F., Physica C 157, 272 (1989).Google Scholar
3 Hull, R., Bonar, J.M., Schneemeyer, L.F., Cava, R.J., Krajewski, J.J., and Waszczak, J.V., Phys. Rev. B 39, 9685 (1989).Google Scholar
4 Subramanian, M.A., Gopalakrishnan, J., Torardi, C.C., Gai, P.L., Boyes, E.D., Askew, T.R., Flippen, R.B.N., Farneth, W.E., and Sleight, A.W., Physica C 157, 124 (1989).Google Scholar
5 Mohamed, M. A-K., Jung, J., and Franck, J.P., Phys. Rev. B 39, 9614 (1989), and references therein.Google Scholar
6 Maletta, H., Malozemoff, A.P., Cronemeyer, D.C., Tsuei, C.C., Greene, R.L., Bednorz, J.G., and Muller, K.A., Solid State Comm. 62, 323 (1987).Google Scholar
7 McGuire, T.R., Dinger, T.R., Freitas, P.J.P., Gallagher, W.J., Plaskett, T.S., Sandstrom, R.L., and Shaw, T.M., Phys. Rev. B 36, 4032 (1987).Google Scholar
8 Welp, U., Kwok, W.K., Crabtree, G.W., Vandervoort, K.G., and Liu, J.Z., Phys. Rev. Lett. 62, 1908 (1989).Google Scholar
9 Werthamer, N.R., Helfand, E., and Hohenberg, P.C., Phys. Rev. 147, 295 (1966).Google Scholar