  We investigate the 2D ferromagnetic Kondo lattice model for manganites with
classical corespins at Hund's rule coupling J_H=6, with antiferromagnetic
superexchange 0.03 < J' < 0.05. We employ canonical and grand canonical
unbiased Monte Carlo simulations and find paramagnetism, weak ferromagnetism
and the Flux phase, depending on doping and on J'. The observed single particle
spectrum in the flux phase differs from the idealized infinite lattice case,
but agrees well with an idealized finite lattice case with thermal
fluctuations.
