材料期刊网

The influence of R substitution in (La1-xRx)(2)Co16Ti compounds (R=Sm, Nd; x=0.0-1.0) on structural and magnetic properties has been investigated. The lattice parameters of the (La1-xRx)(2)Co16Ti compounds decrease with increasing x in the range 0 less than or equal to x less than or equal to 1.0. With x increasing, the saturation magnetic moment increases for (La1-xNdx)(2)Co16Ti while remains unaffected for (La1-xSmx)(2)Co16Ti. The Curie temperature increases with increasing Sm or Nd substitution. The uniaxial magnetocrystalline anisotropy of (La1-xSmx)(2)Co16Ti becomes enhanced with increasing Sm substitution. The anisotropy of (La1-xNdx)(2)Co16Ti changes from easy-axis (x<0.4) to easy-plane anisotropy (x>0.4). (C) 2000 Elsevier Science S.A. All rights reserved.