142 citations · 173 across the 5 of their papers we have counts for
5 papers
Anderson impurity model at finite Coulomb interaction U: generalized Non-crossing Approximation
K. Haule, S. Kirchner, J. Kroha +1
We present an extension of the non-crossing approximation (NCA), which is widely used to calculate properties of Anderson impurity models in the limit of infinite Coulomb repulsion…
Generalized conductance sum rule in atomic break junctions
S. Kirchner, J. Kroha, E. Scheer
When an atomic-size break junction is mechanically stretched, the total conductance of the contact remains approximately constant over a wide range of elongations, although at the…
Theory of STM Spectroscopy of Kondo Ions on Metal Surfaces
O. Ujsaghy, J. Kroha, L. Szunyogh +1
The conduction electron density of states nearby a single magnetic impurity, as measured recently by scanning tunneling microscopy (STM), is calculated. It is shown that the Kondo…
Diagrammatic theory of the Anderson impurity model with finite Coulomb interaction
K. Haule, S. Kirchner, J. Kroha +1
We have developed a self-consistent conserving pseudo particle approximation for the Anderson impurity model with finite Coulomb interaction, derivable from a Luttinger Ward functi…
Antiferromagnetic interlayer exchange coupling across an amorphous metallic spacer layer
D. E. Buergler, D. M. Schaller, C. M. Schmidt +5
By means of magneto-optical Kerr effect we observe for the first time antiferromagnetic coupling between ferromagnetic layers across an amorphous metallic spacer layer. Biquadratic…