Magnetic correlations and energy gap in superconducting YBa2Cu3O6.6 with Tc=53 K

P. M. Gehring, J. M. Tranquada, G. Shirane, J. R.D. Copley, R. W. Erwin, M. Sato, S. Shamoto

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31 Citations (Scopus)

Abstract

The dynamic magnetic correlations have been characterized in a large, orthorhombic single crystal of YBa2Cu3O6+x with x=0.6, having a Tc of 53 K. Inelastic-neutron-scattering measurements reveal a gap (zero magnetic cross section) of 5 meV in the spin-excitation spectrum at 10 K. The size of the gap fits well between those reported by Rossat-Mignod et al. for x=0.51 and 0.69. However, the rapid change in the gap size with a relatively small change in Tc is not understood.

Original languageEnglish
Pages (from-to)2811-2814
Number of pages4
JournalPhysical Review B
Volume44
Issue number6
DOIs
Publication statusPublished - 1991

All Science Journal Classification (ASJC) codes

  • Condensed Matter Physics

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