The magnetic structures of LiFePO 4 and of its delithiated form FePO 4 (triphylite, olivine group, space group Pnma ) have been solved using neutron diffraction on polycrystalline samples. Both compounds show antiferromagnetic behavior below 52 K for LiFePO 4 (Fe 2+ ) and below 125 K for FePO 4 (Fe ...
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