Abstract
We obtain the magnetic phase diagram of perovskite Mn oxides at low tempera tures. Our results show that when temperature a spiral state is stable in a lower doping concentration, a canted state is stable in a higher doping concentration and a ferromagnetic (FM) state becomes stable in the intermediate doping concentration. With temperature increasing, a paramagnetic (PM) state appears at the higher doping concentration and then the canted state disappears.
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