Self-consistent microscopic theory of surface superconductivity

A Self-Consistent Microscopic Theory of Surface Superconductivity

The electronic structure of the superconducting surface sheath in a typeII superconductor in magnetic fields Hc2 < H < Hc3 is calculated selfconsistently using the Bogoliubov-de Gennes equations. We find that the pair potential ∆(x) exhibits pronounced Friedel oscillations near the surface, in marked contrast with the results of Ginzburg-Landau theory. The local density of states near the surfa...

Microscopic Theory of Superconductivity

These lecture notes are dedicated to Dierk Rainer on the occassion of his 60th birthday in 2001. He pioneered the systematic treatment of the low-energy scale in the electronic theory of condensed matter.

Self-consistent microscopic theory of fluctuation-induced transport.

A Maxwell’s demon type “information engine” that extracts work from a bath is constructed from a microscopic Hamiltonian for the whole system including a subsystem, a thermal bath, and a nonequilibrium bath of phonons or photons that represents an information source or sink. The kinetics of the engine is calculated self-consistently from the state of the nonequilibrium bath, and the relation of...

OFFPRINT Surface tension of electrolyte solutions: A self-consistent theory

We study the surface tension of electrolyte solutions at the air/water and oil/water interfaces. Employing field-theoretical methods and considering short-range interactions of anions with the surface, we expand the Helmholtz free energy to first order in a loop expansion and calculate the excess surface tension. Our approach is self-consistent and yields an analytical prediction that reunites ...

Microscopic Theory of Type-1.5 Superconductivity in Multiband Systems