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FeCr2S4 has a spin-glass phase below 60K (∼Tg) and a ferrimagnetic phase in the temperature range 60–170K (TC ∼ 170K). Mn doping gives an increase of a paramagnetic phase which coexists with a ferrimagnetic phases, and shift of magnetic transition temperature (Tg∼ 45K, TC∼ 130K for Fe0.5Mn0.5Cr2S4). The conduction property changes into variable range hopping (VRH) from thermal activated transport...
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