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Journal Article

Mixed order parameter symmetries in cuprate superconductors

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Bussmann-Holder,  A.
Former Departments, Max Planck Institute for Solid State Research, Max Planck Society;
Department Electronic Structure Theory (Ali Alavi), Max Planck Institute for Solid State Research, Max Planck Society;
Department Physical Chemistry of Solids (Joachim Maier), Max Planck Institute for Solid State Research, Max Planck Society;
Department Nanochemistry (Bettina V. Lotsch), Max Planck Institute for Solid State Research, Max Planck Society;

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Citation

Bussmann-Holder, A., Khasanov, R., Shengelaya, A., Maisuradze, A., La Mattina, F., Keller, H., et al. (2007). Mixed order parameter symmetries in cuprate superconductors. EPL, 77(2): 27002.


Cite as: https://hdl.handle.net/21.11116/0000-000E-B719-8
Abstract
The recent observation of an inflection point in the temperature dependence of the in-plane magnetic field dependence (lambda(ab)) is investigated within a two-band model with coupled order parameters of different symmetries. While the dominant order parameter has d-wave symmetry, the smaller one is of s-wave symmetry. Superconductivity is robust in the d-wave channel and induced via interband interactions in the s-wave subsystem.