Combined effect of nonmagnetic and magnetic scatterers on critical temperatures of superconductors with different gap anisotropy

Abstract

The combined effect of nonmagnetic and magnetic defects and impurities on critical temperatures of superconductors with different gap anisotropy is studied theoretically within the weak coupling limit of the BCS model. An expression is derived which relates the critical temperature to relaxation rates of charge carriers by nonmagnetic and magnetic scatterers, as well as to the coefficient of anisotropy of the superconducting order parameter on the Fermi surface. Particular cases of d-wave, (s+d)-wave, and anisotropic s-wave superconductors are briefly discussed.

5 pages, TeX

Cited by in corpus (16)

• Superfluid density and specific heat within self-consistent scheme for two-band superconductor
• Pair-breaking in iron-pnictides
• Orbital and spin effects for the upper critical field in As deficient disordered Fe pnictide superconductors
• Critical temperature of an anisotropic superconductor containing both nonmagnetic and magnetic impurities
• Coherent Potential Approximation for `d - wave' Superconductivity in Disordered Systems
• Effect of nonmagnetic and magnetic impurities on the specific heat jump in anisotropic superconductors
• Multi-band $s_{++}$ superconductivity in ${\text{V}}_3\text{Si}$ determined from the response to a controlled disorder
• Anisotropic superconductivity of niobium based on its response to non-magnetic disorder
• Possible unconventional superconductivity in substituted BaFe${}_2$As${}_2$ revealed by magnetic pair-breaking studies
• Anomalous impurity effects in nonadiabatic superconductors
• Possible unconventional pairing in $(\text{Ca,Sr}{)}_3(\text{Ir,Rh}{)}_4{\text{Sn}}_{13}$ superconductors revealed by controlling disorder
• Temperature dependence of London penetration depth anisotropy in superconductors with anisotropic order parameters
• Evolution of ground state and upper critical field in R(1-x)GdxNi2B2C (R = Lu, Y): Coexistence of superconductivity and spin-glass state
• Disorder-dependent slopes of the upper critical field in nodal and nodeless superconductors
• Isotope Effect in the Presence of Magnetic and Nonmagnetic Impurities
• The spin exchange interaction effect on Tc equation of anisotropic impure superconductors