科研之友
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摘要
The gyromagnetic factors of the Cu2+ monomer in Tl-2223 superconductor are quantitatively investigated from the perturbation formulas of these factors for a 3d(9) ion in a tetragonally elongated octahedron. The local tetragonal distortion of the system is attributable to the axial elongation along c axis, corresponding to the five-fold coordinated Cu2+(2) site with almost 30% longer Cu-O bond length for the apical oxygen as compared to the four planar ones. The significant anisotropic behaviors of the EPR spectra perpendicular to and parallel with the ab (CuO2) layers are analyzed on the basis of the local tetragonal elongation.
- 出版日期2015-3
- 单位电子科技大学
