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Search for magnetic fields due to anyons in high-T c superconductors |
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| Authors: | R. F. Kiefl J. H. Brewer I. Affleck J. F. Carolan P. Dosanjh W. N. Hardy T. Hsu R. Kadono J. R. Kempton S. R. Kreitzman Q. Li A. H. O'Reilly T. M. Riseman P. Schleger P. C. E. Stamp H. Zhou L. P. Le G. M. Luke B. Sternlieb Y. J. Uemura H. R. Hart K. W. Lay |
| Affiliation: | (1) TRIUMF, Canadian Institute for Advanced Research, V6T 2A3 Vancouver, B.C., Canada;(2) Department of Physics, Univ. of British Columbia, V6T 2A3 Vancouver, B.C., Canada;(3) Department of Physics, Columbia Univ., 10027 New York, NY, USA;(4) G.E. Corporate Research and Development, 12301 Schenectady, NY, USA |
| Abstract: | We have searched for anomalous internal magnetic fields in highT c materials which are predicted to occur in anyon and flux phase models of superconductivity. The magnitude, anisotropy and temperature dependence of the observed fields inc-axis oriented samples of sintered YBa2CuO3O7 and of thick-film Bi2Sr2CaCu2O8 are consistent with a conventional nuclear dipolar origin. An upper limit of ≲0.08 mT is set for any anomalous magnetic fields along thec-axis atμ + sites in bulk CuO2 superconductors. |
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