Magnetism of UCo2Si2 Single Crystal Studied under Applied Magnetic Field and Hydrostatic Pressure
2007
UCo 2 Si 2 is an antiferromagnet below T N = 82.4 K. The magnetic ordering is accompanied by the pronounced anomalies of resistivity, which are very different for the current direction along the a - and c -axis. Evolution of the T N -related resistivity features with increasing hydrostatic pressure up to 7.3 GPa was studied in order to reveal the pressure effects on magnetism in UCo 2 Si 2 . The T N value is found to decrease with increasing pressure; the critical pressure of collapse of ordered magnetism is estimated as 7.8 GPa.
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