The Mo¨ssbauer spectra of Y2Fe14B have been measured from 85 to 296 K. Analysis of the spectra indicates that the near‐neighbor rare‐earth atoms directly influence the orientation of the principal axis of the electric field gradient. The hyperfine parameters are very similar to those of Nd2Fe14B, but the internal fields are somewhat smaller at room temperature in the yttrium compound. The Mo¨sssbauer spectra of Y2(Fe1−xAlx)14B, wherexequals 0.00, 0.02, 0.04, 0.06, and 0.08, have been measured at 85 K. The average internal hyperfine field in these compounds decreases linearly with increasing aluminum content.
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机译：Y2Fe14B的Mo ̈ssbauer光谱测量范围为85至296 K。 光谱分析表明，近邻稀有土原子直接影响电场梯度主轴的方向。钇化合物的超精细参数与Nd2Fe14B非常相似，但在室温下内场略小。Y2（Fe1−xAlx）14B 的 Mo ̈sssbauer 光谱，其中 x 等于 0.00、0.02、0.04、0.06 和 0.08，已在 85 K 下测量。这些化合物中的平均内部超精细场随着铝含量的增加而线性减小。
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