Magnetic Properties and Structural Transitions in (MnCo)1-xGe
The magnetic and X-ray diffraction measurements of the ferromagnetic compounds (MnCo)1-xGe have been performed for the concentration range 0 ≤ x ≤ 0.05. The structural and magnetic phase diagrams have been obtained. Compositions for which the magnetic transition from ferromagnetic to paramagnetic state coincides with the structural transition from an orthorhombic to a hexagonal phase have been determined to be 0.015 ≤ x ≤ 0.025. It was found that for the compound with x = 0.015 application of 1 T magnetic field in isothermal regime in the vicinity of the Curie temperature is accompanied by the entropy change 1.3 J/(Kkg).
P.E. Markin and N.V. Mushnikov, "Magnetic Properties and Structural Transitions in (MnCo)1-xGe", Solid State Phenomena, Vols. 152-153, pp. 489-492, 2009