Abstract
The magnetisation of amorphous Gd0.70Pd0.30H0.20, prepared by sputtering was measured between temperatures of 100 and 300 K in fields of up to 5 kOe. While the Curie temperature TC was found to be significantly lower than that observed for undiluted, liquid-quenched amorphous Gd0.70Pd0.30, the magnetic response in low fields was found to be essentially identical, indicating that the critical behaviour of this amorphous system does not change upon dilution with hydrogen. A detailed examination of the low-field magnetic response is compatible with an equation of state revealing that the transition, occurring at a temperature of 106.3 K, is paramagnetic to ferromagnetic in nature.
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