The role of apical oxygen in superconducting cuprates
A. Bussmann‐Holdera Max-Planck-Institut für Festkörperforschung , Heisenbergstr. 1, D-70569 , Stuttgart , GermanyL. Genzela Max-Planck-Institut für Festkörperforschung , Heisenbergstr. 1, D-70569 , Stuttgart , GermanyA. R. Bishopb Theoretical Division , Los Alamos National Laboratory , Los Alamos , NM , 87545 , USAArndt Simona Max-Planck-Institut für Festkörperforschung , Heisenbergstr. 1, D-70569 , Stuttgart , Germany
1997en
ABI
Аннотация
Abstract Using a structure specific three-dimensional superconducting gap function, derived for YBCO, the BCS coherence factors are evaluated. They are used to calculate the low-frequency electromagnetic response in the superconducting state and good agreement with experiment is obtained. It is found that the apex oxygenion contributes dominantly to the low-frequency properties which have been evidenced elsewhere as favouring d-wave pairing.
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