Abstract
We have investigated the charge and spin ordering in Nd 1/3Sr 2/3FeO 3 with neutron diffraction technique. This sample undergoes a charge ordering transition accompanying charge disproportionation of 2Fe 4+→Fe 3++Fe 5+. We measured the superlattice reflections due to the charge and spin ordering, and confirmed that charges and spins order simultaneously at T CO=185 K. The ordering pattern of charges and spins in this sample can be viewed as three-dimensional stripe order, and is compared with two-dimensional stripe order observed in other transition metal oxides.
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