MAGNETIC ANISOTROPY OF R2Co17 COMPOUNDS (R equals Er, Tm, Yb).

Saturation moments, easy direction of magnetization, anisotropy field, and anisotropy constants have been determined at 4. 2 K and room temperature for Er//2Co//1//7, Tm//2Co//1//7 and Yb//2Co//1//7. The data obtained are discussed and compared with theoretical predictions.