NMR Study of (²⁷Al) in (Gd_1−xDy_x)Al₂

Abstract

Nuclear magnetic resonance of ²⁷Al nuclei in (Gd_1−xDy_x)Al₂ compounds at 4.2 K has been observed for 0≤x≤1. The spectra of these compounds have two peaks for 0≤x≤0.3 and single peak for 0.4≤x≤1. The results show that the direction of the gadolinium moment changes from the [111] to [100] direction around x\simeq0.3. The experimental results have been explained by rotation of the dipole field.