Abstract
Pseudoternary La 2- x Ce x Fe 14B compounds having the tetragonal Nd 2Fe 14B crystal structure have been prepared over the entire 0≤ x≤2 composition range. With appropriate heat treatment schedules, samples which were single-phase or nearly so were obtained for x=0, 0.2, 0.4, 0.6, 0.8, 1.0, 1.2, 1.4, 1.6, 1.8, and 2. Lattice constants ( a, c), Curie temperature ( T C), and magnetization data are reported for each of these materials. We find that (i) a, c, and T C decrease linearly with Ce content x; (ii) the magnetization at 5 K is essentially independent of x; and (iii) there is no evidence of the occurence of Ce 3+ over any range in x.
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