Effect of mechanical alloying on the pressure dependence of the Curie temperature of Ni–20at% Mn alloy
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説明
Abstract AC susceptibility measurements in mechanically alloyed (MA) Ni–20 at% Mn were made under hydrostatic pressures up to 7.5 GPa. The results were compared with a bulk alloy made by the conventional method of melting. The Curie temperature decreased with pressure at the rate of −6.9 and −8.0 K/GPa in MA and the bulk alloy, respectively. The transition temperature to the reentrant spin glass state increased at the rate of 1.2 and 1.7 K/GPa in MA and the bulk alloy, respectively. The results were explained by assuming a Gaussian distribution of concentration fluctuation.
収録刊行物
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- Journal of Magnetism and Magnetic Materials
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Journal of Magnetism and Magnetic Materials 301 37-43, 2006-06-01
Elsevier BV