In this paper, the full magnetization process demonstrated by the series of ferrimagnetic intermetallic compounds ${\left(\mathrm{Nd},\mathrm{Ho}\right)}_2{\mathrm{Fe}}_{14}\mathrm{B}$ and ${\mathrm{Ho}}_2{\mathrm{Fe}}_{14}\mathrm{B}$ and their hydrides with the maximum possible hydrogen content (for the given crystal structure type) is studied theoretically and experimentally using megagauss magnetic fields. We observe field-induced phase transitions from the initial ferrimagnetic to the forced-ferromagnetic state in magnetic fields up to 130 T and describe the magnetization process analytically. We find a drastic decrease of the critical transition fields in the hydrogenated compounds. This is due to extremely strong, nearly twofold reduction of the $R$-Fe intersublattice exchange interaction because of the combined substitution and hydrogenation effects. A comparative analysis of the magnetization behavior for the system ${\mathrm{Ho}}_2{\mathrm{Fe}}_{17}\text{−}\mathrm{H}$ is also performed.

中文翻译：

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超高斯磁场探测的间隙改性（Nd，Ho）2Fe14B化合物中R-Fe交换的急剧减少

在本文中，由一系列亚铁磁性金属间化合物证明的全磁化过程 ${\left(钕,何\right)}_2{铁}_{14}\mathrm{乙}$ 和 ${何}_2{铁}_{14}\mathrm{乙}$并且使用兆高斯磁场从理论上和实验上研究了具有最大可能氢含量（对于给定的晶体结构类型）的氢化物。我们在高达 130 T 的磁场中观察到从初始亚铁磁态到强制铁磁态的场致相变，并分析地描述了磁化过程。我们发现氢化化合物中的临界跃迁场急剧下降。这是由于极强的，几乎两倍的减少$\mathrm{电阻}$-Fe 晶间交换相互作用，因为结合的取代和氢化效应。系统磁化行为的比较分析${何}_2{铁}_{17}\text{-}\mathrm{H}$ 也进行。