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研究了 RMn_2及 R_6Mn_(23)(R=Y、Lu、Gd 及 Th)化合物在氢吸附前后的磁性能。在 YMn_2、LuMn_2及 Th_6Mn_(23)内可观察到,在导入氢后从 Pauli 顺磁性转变为铁磁性。在 Y_6Mn_(23)内可观察到相反的效应,即从铁磁性转变为 Pauli 顺磁性。在 ThMn_2、GdMn_2、Lu_6Mn_(23)及 Gd_6Mn_(23)内可观察到渐次的磁性能的改变。借助 X—射线,确定氢吸附使晶格参数大量增加并且仍然保持它们的晶体结构。
The magnetic properties of RMn_2 and R_6Mn_ (23) (R = Y, Lu, Gd and Th) compounds before and after hydrogen adsorption were investigated. It is observed in YMn_2, LuMn_2 and Th_6Mn_ (23) that paramagnetism changes from Pauli to ferromagnetism after the introduction of hydrogen. The opposite effect is observed in Y_6Mn_ (23), from ferromagnetic to Pauli paramagnetic. Gradual changes in magnetic properties can be observed in ThMn_2, GdMn_2, Lu_6Mn_ (23) and Gd_6Mn_ (23). With the aid of X-rays, it was determined that hydrogen adsorption caused a substantial increase in lattice parameters and still retained their crystalline structure.