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Resonance impurity scattering in superconductivity in PrOs 4 Sb 12
Author(s) -
Parker D.,
Haas S.,
Maki K.
Publication year - 2006
Publication title -
physica status solidi (b)
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.51
H-Index - 109
eISSN - 1521-3951
pISSN - 0370-1972
DOI - 10.1002/pssb.200690028
Subject(s) - superconductivity , condensed matter physics , phase diagram , impurity , scattering , order (exchange) , physics , heavy fermion superconductor , phase (matter) , plane (geometry) , spin (aerodynamics) , fermion , field (mathematics) , quantum mechanics , heavy fermion , geometry , thermodynamics , mathematics , finance , pure mathematics , economics
The cover picture depicts the phase diagram of the heavy‐fermion superconductor PrOs 4 Sb 12 ( T c = 1.85 K) from measurements of magnetothermal conductivity data by K. Izawa et al. [1]. This superconductor is believed to have two phases with distinct order parameter symmetries. The high‐temperature, high‐field A‐phase contains four order parameter point nodes in the ab ‐plane and two additional nodes (not shown) along the c ‐axis, while the lower‐temperature B‐phase contains just two point nodes in the ab ‐plane. This material is believed to be a spin‐triplet superconductor and exhibits two distinct superconducting transitions, as shown in the diagram. The picture relates to the Editor's Choice by David Parker et al. which proposes order parameters consistent with these data and works out the consequences of resonant impurity scattering in this material [2]. (© 2006 WILEY‐VCH Verlag GmbH & Co. KGaA, Weinheim)