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The temperature dependence of the local electronic and magnetic state of iron in the chalcogenide spinel FeCr2S4 has been studied in detail around the Curie temperature with the help of 57Fe Mössbauer spectroscopy. Ferrimagnetic order was found to break down anomalously at ≅ 20 K below the Curie temperature in FeCr2S4. Magnetic relaxation of iron magnetic moments was observed with increasing relaxation...
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