The magnetostrictive properties of single crystal Tb.27Dy.73Fe2was examined under compressive loads up to 48 MP a. Magnetostrictions > 1.8 × 10-3were observed for stresses greater than 20 MPa. Magnetization and magnetostriction were calculated for the magnetization rotation model, which was extended to include cubic anisotropy and compressive loading along the [111] axis. The effect of a distribution of magnetic moment directions is discussed.
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Clark et al. (1984) studied this question.