Magnetic and other normal properties of Y-Ba-Cu-O caused by Cu-O chain fragments

Authors

  • G. Uimin,

    1. Institut für Theoretische Physik, Universität zu Köln, Zülpicher Straße 77, W-5000 Köln 41, Germany
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    • Landau Institute for Theoretical Physics, Chernogolovka, Moscow District 142432, Russia.

  • V. Stepanov

    1. Landau Institute for Theoretical Physics, Chernogolovka, Moscow District 142432, Russia
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Abstract

We discuss the questions related to modifications of the orthorhombic phase of YBCO. A general approach of statistical mechanics allows to determine numerically such quantities as the paramagnetic Curie constant, concentration of holes doped into Cu(2) planes from chain fragments, the fractions of copper ions in differently coordinated positions. Where the experimental information is available, we discuss a correspondence between our theoretical results end experimental ones.

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