On the low temperature properties and specific anisotropy of pure anisotropically paired superconductors

Abstract

Dependences of low temperature behavior and anisotropy of various physical quantities for pure unconventional superconductors upon a particular form of momentum direction dependence for the superconducting order parameter (within the framework of the same symmetry type of superconducting pairing) are considered. A special attention is drawn to the possibility of different multiplicities of the nodes of the order parameter under their fixed positions on the Fermi surface, which are governed by symmetry. The problem of an unambiguous identification of a type of superconducting pairing on the basis of corresponding experimental results is discussed. Quasiparticle density of states at low energy for both homogeneous and mixed states, the low temperature dependences of the specific heat, penetration depth and thermal conductivity, the I-V curves of SS and NS tunnel junctions at low voltages are examined. A specific anisotropy of the boundary conditions for unconventional superconducting order parameter near $T_c$ for the case of specular reflection from the boundary is also investigated.

20 pages

References in corpus (6)

• Nonlinear Meissner Effect in CuO Superconductors
• The Nonlinear Meissner Effect in Unconventional Superconductors
• Charge Transport in Junctions between D-Wave Superconductors
• Thermal Conductivity Anisotropy in Superconducting $UP{t}_3$
• Transport Properties of "Extended-s" State Superconductors
• The Upper Critical Field for Unconventional Superconducting Film: a Kink due to the Boundary Conditions

Cited by in corpus (7)

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• Symmetry properties of the nodal superconductor PrOs4Sb12
• Local suppression of the superfluid density of PuCoGa${}_5$ in the Swiss Cheese model
• Complex order parameter symmetry and thermal conductivity
• Quasi-particle Density in Sr2RuO4 Probed by means of the Phonon Thermal Conductivity
• Field angle-dependent thermal conductivity in nodal superconuctors