Hostname: page-component-848d4c4894-5nwft Total loading time: 0 Render date: 2024-05-17T15:56:46.733Z Has data issue: false hasContentIssue false
  • English
  • Français

Epr Spectroscopy on Zn-Substituted YBa2Cu3O7

Published online by Cambridge University Press:  28 February 2011

A. M. Ponte Goncalves ,
Chan-Soo Jee ,
D. Nichols ,
J. E. Crow ,
G. H. Myer ,
R. E. Salomon  and
P. Schlottmann
A. M. Ponte Goncalves
Affiliation:
Center for Materials Research, Temple University, Philadelphia, PA 19122
Chan-Soo Jee
Affiliation:
Center for Materials Research, Temple University, Philadelphia, PA 19122
D. Nichols
Affiliation:
Center for Materials Research, Temple University, Philadelphia, PA 19122
J. E. Crow
Affiliation:
Center for Materials Research, Temple University, Philadelphia, PA 19122
G. H. Myer
Affiliation:
Center for Materials Research, Temple University, Philadelphia, PA 19122
R. E. Salomon
Affiliation:
Center for Materials Research, Temple University, Philadelphia, PA 19122
P. Schlottmann
Affiliation:
Center for Materials Research, Temple University, Philadelphia, PA 19122
Get access

Abstract

The temperature and concentration dependence of the electron paramagnetic resonance spectra of YBa2(Cu1−xZnx)3O7 has been measured for 0≤x≤0.16. Zn substituted on the Cu-site cause a rapid nearly linear depression of the superconducting transition temperature Tc with Tc going to zero in the vicinity of x=0.10. Only weak EPR spectra due to ≤1% of the Cu-ions are seen in the superconducting phase of YBa2Cu3O7. These spectra are most likely attributed to Cu-ions in the vicinity of grain boundaries and do not represent a bulk response. However, a strong asymmetric resonance is observed in the Zn-substituted samples with x>0.1. The EPR results obtained for YBa2(Cu1−xZnx)3O7 are discussed in terms of a possible localization of d-electrons.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 99: Symposium AA – High-Temperature Superconductors , 1987 , 583
Copyright
Copyright © Materials Research Society 1988

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.)

References

REFERENCES

1) Wu, M.K., Ashburn, J.R., Torng, C.J., Hor, P.H., Meng, R.L., Gao, L., Huang, Z.J., Wang, Y.Q. and Chu, C.W., Phys. Rev. Lett. 58 L908 (1987)Google Scholar
2) Fisk, Z., Thompson, J.D., Zirngiebl, E., Smith, J.L. and Cheong, S.W., Solid State Commun. 62 743 (1987)Google Scholar
3) Hor, P.H., Meng, R.L., Wang, Y.Q., Gao, L., Huang, Z.J., Bechtold, J., Forster, K. and Chu, C.W., Phys. Rev. Lett. 58 1891 (1987)Google Scholar
4) Murphy, D.W., Sunshine, S., Van Dover, R.B., Cava, R.J., Batlogg, B., Zahurok, A.M. and Scheemeyer, L.F., Phys. Rev. Lett. 58 1888 (1987)Google Scholar
5) Tarascon, J.M., Mc Kinnor, W.R., Green, L.H., Hull, G.W. and Vogel, E.M., Phys. Rev. B36, 226 (1987)Google Scholar
6) Xiao, G., Streitz, F.H., Gavrin, A., Du, Y.W. and Chien, C.L., Phys. Rev. B35, 8782 (1987)Google Scholar
7) see for example: Maple, M.P., Delong, L.E. and Sales, B.C., in “Handbook on the Physics and Chemistry of the Rare Earths” eds. Gschneider, K.A. Jr, and Eyring, L., North=Holland, Amsterdam (1987) p. 797 Google Scholar
8) Bloom, S.H., Kuric, M.V., Yao, Y.S., Guertin, R.P., Nichols, D., Jee, Chan-Soo, Kebede, A., Crow, J.E., Mihallsin, T., Myer, G.H. and Schlottmann, P. (this proceeding)Google Scholar