Abstract Magnetic properties of hydrides of the intermetallic compound Nd 2 Fe 14 BH x are investigated in the temperature range covering the Curie temperatures ( T C ) of the compounds (up to 670 K). The temperature dependencies of magnetization are measured under continuous control of hydrogen content in the investigated samples. The dependencies of Curie and spin-reorientation transition ( T SR ) temperatures on the hydrogen concentration are studied in detail. The dependence of hydrogen concentration on pressure at a constant temperature (near T C ) and on the temperature at various pressures are obtained. We attempted to estimate the contributions of the unit cell volume increase upon hydrogenation and the electronic structure change in the variation of T C of the hydrogenated Nd 2 Fe 14 B .

中文翻译：

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吸氢及其对 Nd2Fe14B 磁性能的影响

摘要 研究了金属间化合物 Nd 2 Fe 14 BH x 的氢化物在覆盖化合物居里温度 (TC)（高达 670 K）的温度范围内的磁性能。磁化强度的温度依赖性是在所研究样品中氢含量的连续控制下测量的。详细研究了居里和自旋重定向转变 (T SR ) 温度对氢浓度的依赖性。获得了氢气浓度在恒定温度（接近 TC ）下的压力和不同压力下的温度的依赖性。我们试图估计氢化后晶胞体积增加和氢化 Nd 2 Fe 14 B 的 TC 变化中电子结构变化的贡献。