34 citations · 41 across the 2 of their papers we have counts for
2 papers
cond-mat.str-el1999★ 7 cited
Superexchange via Cluster States: Calculations of Spin-Phonon Coupling Constants for CuGeO3
S. Feldkemper, W. Weber
Calculations for spin-phonon coupling constants in CuGeO3 are presented, applying fourth order superexchange perturbation theory to an extended Hubbard model. In our treatment, the…
cond-mat.str-el1997★ 34 cited
Generalized calculation of magnetic coupling constants for Mott-Hubbard insulators: Application to ferromagnetic Cr compounds
Stefan Feldkemper, Werner Weber
Using a Rayleigh-Schrödinger perturbation expansion of multi-band Hubbard models, we present analytic expressions for the super-exchange coupling constants between magnetic transit…