Antiferromagnetism and the node structure of the superconducting order parameter of UPd2Al3

Authors
Huth, M Jourdan, N Adrian, H
Citation
M. Huth et al., Antiferromagnetism and the node structure of the superconducting order parameter of UPd2Al3, EUR PHY J B, 13(4), 2000, pp. 695-699
Citations number
31
Categorie Soggetti
Apllied Physucs/Condensed Matter/Materiales Science
Journal title
EUROPEAN PHYSICAL JOURNAL B
ISSN journal
14346028 → ACNP
Volume
13
Issue
4
Year of publication
2000
Pages
695 - 699
Database
ISI
SICI code
1434-6028(200002)13:4<695:AATNSO>2.0.ZU;2-7
Abstract
The node structure of the superconducting order parameter of the heavy-ferm ion system UPd2Al3 is analyzed within the weak-coupling theory. A pairing i nteraction induced by the exchange of antiferromagnetic spin excitations is assumed as suggested by recent inelastic neutron scattering experiments an d tunneling spectroscopy. The multi-sheeted Fermi surface is taken into acc ount. Based on a model susceptibility for the simple antiferromagnetic stru cture of UPd2Al3, line nodes result at the rim of the magnetic Brillouin zo ne.