Ki Wysokinski

Interlayer coupling and p -wave pairing in strontium ruthenate

On the basis of a three-orbital model and an effective attractive interaction between electrons, we investigate the possible superconducting states, with p- and f-wave internal symmetries, of

Coherent potential approximation for d -wave superconductivity in disordered systems

{mathrm{Sr}}_{2}{mathrm{RuO}}_{4}.

Spin-Orbit Coupling and Symmetry of the Order Parameter in Strontium Ruthenate

For an orbital-dependent interaction which acts between in-plane and out-of-plane nearest-neighbor ruthenium atoms, we find a state for which the gap in the quasiparticle spectra has nodes on the

Gap nodes and time reversal symmetry breaking in strontium ruthenate

ensuremath{alpha}

Orbital magnetic moment of a chiral p-wave superconductor

and

Spin triplet superconductivity in Sr2RuO4

ensuremath{beta}

Charge and order parameter fluctuations in disordered superconductors

sheets of the Fermi surface, but which is complex with no nodes on the

Tc calculation of disordered superconductor with local electron pairing

ensuremath{gamma}

Van Hove singularity and d-wave pairing in disordered superconductors

sheet. We show that this state is consistent with the available experimental data. In particular, we present the results of our calculations of the specific heat and penetration depth as functions of temperature.

Horizontal line nodes in superconducting Sr2RuO4

A Coherent Potential Approximation is developed for s–wave and d–wave superconductivity in disordered systems. We show that the CPA formalism reproduces the standard pair-breaking formula, the self-consistent Born Approximation and the self-consistent T-matrix approximation in the appropriate limits. We implement the theory and compute Tc for s–wave and d–wave pairing using an attractive nearest neighbor Hubbard model featuring both binary alloy disorder and a uniform distribution of scattering site potentials. We determine the density of states and examine its consequences for low temperature heat capacity. We find that our results are in qualitative agreement