Magnetic Properties of MnCo1-xFexGe (0 ≤ x ≤0.12)

摘要

Recently, it was found that ferromagnetic MnCon0.92nFen0.08nGe showed first-order transition between the paramagnetic and ferromagnetic state with a thermal hysteresis of 24 K, which was accompanied by the martensitic transformation from the hexagonal Nin2nIn-type structure to the orthorhombic TiNiSi-type structure in the vicinity of 275K [1]. The compound showed both metamagnetic transition and magnetic field-induced martensitic transformation [1]. In this study, we performed magnetic and Mössbauer effect measurements of MnCon1-xnFenxnGen$(0leq mathrm{x}leq 0.12)$nto clarify its fundamental properties on magnetism.