Influence of the orthorhombic distortion
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T.M. Mishonov; I.N. Gentchev; R.K. Koleva; E.S. Penev
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Article
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1998
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Elsevier Science
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English
⚖ 75 KB
Four atom states Cu3d x 2 -y 2 , Cu4s, O a 2 p x are involved in a tight-binding model for the superconducting CuO 2 plane. The orthorhombic distortion is taken into account by the differences of Cu-O hopping amplitudes and single-site oxygen energies ε a and ε b of two oxygen positions in the eleme