221 citations · 1.2k across the 23 of their papers we have counts for
3 papers · 1 filter
Magnetic excitations in the stripe phase of high-T_c superconductors
G. S. Uhrig, K. P. Schmidt, M. Grüninger
The magnetic excitations in the stripe phase of high-T_c superconductors are investigated in a model of spin ladders which are effectively coupled via charged stripes. Starting fro…
Unifying Magnons and Triplons in Stripe-Ordered Cuprate Superconductors
G. S. Uhrig, K. P. Schmidt, M. Grüninger
Based on a two-dimensional model of coupled two-leg spin ladders, we derive a unified picture of recent neutron scattering data of stripe-ordered La_(15/8)Ba_(1/8)CuO_4, namely of…
High Order Perturbation Theory for Spectral Densities of Multi-Particle Excitations: S=1/2 Two-Leg Heisenberg Ladder
Christian Knetter, Kai P. Schmidt, Götz S. Uhrig
We present a high order perturbation approach to quantitatively calculate spectral densities in three distinct steps starting from the model Hamiltonian and the observables of inte…