Single particle spectrum of the flux phase in the FMKondoModel
نویسندگان
چکیده
We investigate the 2D ferromagnetic Kondo lattice model for manganites with classical corespins at Hund’s rule coupling JH = 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.
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