2 papers
cond-mat.str-el2001
Ferromagnetism in the Hubbard model
W. Nolting, M. Potthoff, T. Herrmann +1
We investigate the possibility and stability of bandferromagnetism in the single-band Hubbard model. This model poses a highly non-trivial many-body problem the general solution of…
cond-mat.str-el1999
Effects of Core-Hole Screening on Spin-Polarised Auger Spectra from Ferromagnetic Nickel
T. Wegner, M. Potthoff, W. Nolting
We calculate the spin- and temperature-dependent local density of states for ferromagnetic Ni in the presence of a core hole at a distinguished site in the lattice. Correlations am…