Abstract

Nuclear magnetic resonance measurements of spin-lattice relaxation time and resonance line shapes have been carried out as a function of temperature in the range 77–715°K for 1H contained in yttrium hydride. The composition ranged from YH2.61 to YH2.94 and included three samples in the hydrogen-deficient trihydride phase. Within limited temperature ranges samples with higher hydrogen concentrations displayed complex line shapes and nonexponential magnetization recovery. These phenomena were associated with the formation of regions of YH3 within the hydrogen-deficient structure.

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