SPIN REORIENTATION PHENOMENA IN SUBSTITUTED Pr2 (Co, Fe)17 INTERMETALLICS

The magnetic anisotropy phase diagrams of Ty (T=Mn, Zr, Ti, Hf) compounds have been determined.Two spin reorientation temperatures, TSr1 and Tsr2, have been observed.Near the Ts,l or Ts,2 boundary the anisotropy is conical; between the two spin reorientation temperatures they exhibit uniaxial anisotropy and beyond these limits they are planar.