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Temperature dependence of - and -axis and lattice parameters.
Temperature dependence of -axis and lattice parameter, and of the YBCO unit-cell diagonal in the plane , calculated from the YBCO structural data and thermal expansion coefficients given in Tables II and I, respectively [in orthorhombic system , from Reference 24]. The tetragonal to orthorhombic YBCO transition temperature, close to 700°C, is displayed as a dotted line.
Thermal expansion coefficients of YBCO, , , and as reported in literature and from this study.
Lattice parameter values of YBCO, , and as reported in literature and from this study.
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