Aftereffects of 鈥淢agnetic impact鈥?in Nd₂Fe₁₄B

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• 作者：S. K. Godovikov (1) godovikova@mail.ru
  E. S. Lagutina (1)
• 刊名：Bulletin of the Russian Academy of Sciences ; Physics
• 出版时间：March 2010
• 出版年：2010
• 期刊代码：pc951_1062-8738
• 类别：ph
• 卷：74
• 期：3
• 页码：421-425
• 数据来源：sp

摘要

The phenomenon of cyclic local magnetostriction was observed in Nd₂Fe₁₄B metallic crystal, activated by a magnetic field pulse, by means of the M枚ssbauer effect. Fluctuations in hyperfine fields, isomeric displacements, and the occupancy of certain positions of Fe atoms in the structure occurred with a periodicity of ∼12–13 days. After ∼190 days, the fluctuations ceased and there was an inversion in the occupancy of structurally nonequivalent Fe positions.