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Abstract:
The Tb for Y substitution in YFe2D4.2 leads to an increase of cell volume, a canted ferrimagnetic structure at low temperature, and a shift of the magnetovolumic transition temperature to higher value. The study of the structural and magnetic properties of TbFe2H4.2 and TbFe2D4.2 indicates a significant (H,D) isotope effect implying a larger cell volume and a higher transition temperature for the hydride compared to the deuteride. (c) 2007 American Institute of Physics.