Abstract

We have measured the concentration dependence of the Curie temperature, magnetization, anisotropy field and lattice parameters in Pr 2(Fe 1− x Co x ) 14B for 0 ⩽ x ⩽ 1. The Curie temperature strongly increases with x. The saturation magnetization at 4.2 K decreases with x after remaining approximately concentration independent up to x = 0.2. The room temperature anisotropy field first decreases with x but after passing through a minimum at about x = 0.7 strongly increases with x. The experimental results are compared with results obtained previously for Nd 2(Fe 1− x Co x ) 14B and are discussed in terms of crystal-field effects.

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