Abstract:
The node structure of the superconducting order parameter of the heavy-fermion system is analyzed within the weak-coupling theory. A pairing interaction induced by the exchange of antiferromagnetic spin excitations is assumed as suggested by recent inelastic neutron scattering experiments and tunneling spectroscopy. The multi-sheeted Fermi surface is taken into account. Based on a model susceptibility for the simple antiferromagnetic structure of , line nodes result at the rim of the magnetic Brillouin zone.
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Received 29 July 1999
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Huth, M., Jourdan, M. & Adrian, H. Antiferromagnetism and the node structure of the superconducting order parameter of UPd Al . Eur. Phys. J. B 13, 695–699 (2000). https://doi.org/10.1007/s100510050087
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DOI: https://doi.org/10.1007/s100510050087