Abstract
The structure, magnetic and electronic transport properties of the compounds Mn3Sn1-xZnxC (0 ≤ x ≤ 0.5) are investigated. The studies have shown that Zn-doping in the anti-perovskite structure Mn3SnC reduces the cell parameter, but the compounds Mn3Sn1-xZnxC remain cubic anti-perovskite structure. When the temperature is reduced, the magnetization curve changes from PM-FM for Mn3SnC and Mn3Sn0.9Zn0.1C into PM-FM-AFM for Mn3Sn1-xZnxC(x ≥ 0.2). With the increase of doping amount x, both the Tc and the TT reduce, but when x = 0.5, they are raised. In addition, the magnetization of Mn3Sn1-xZnxC is reduced as the doping amount increases. For Mn3Sn1-xZnxC(x = 0, 0.1, 0.2,0.3, 0.4, 0.5) compounds, there exists an anomalous increase in resistivity at a certain temperature that is in agreement with their magnetic transition temperature, and doping Zn in Mn3SnC reduces the resistivity of Mn3SnC.
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