Abstract
Rh 2NiGe crystallizes in Heusler L2 1 structure. Precise magnetization measurements have been made on Rh 2NiGe. The spontaneous magnetic moment at 4.2 K and the Curie temperature T C are 0.57 μ B/f.u. and 113 K, respectively. Below 30 K the decrease in the square of the spontaneous magnetization σ s( T) 2 is proportional to T 2. However, over a temperature range from 89 K to the Curie temperature the decrease in σ s( T) 2 is proportiona to T 4/3. The obtained results are analyzed using spin fluctuation theory.
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