2009 年 34 巻 4 号 p. 31-37
Development of high hydrogen pressure technique and its application for syntheses of hydrides of transition metals (with focus on MnH8 and hydrides of Ni-based alloys) and hydrides of Laves phase alloys have been briefly reviewed. Experimental prove of the existence of ferromagnetic fcc Mn is given and a unique role of Mn in transformation of RMn2 Laves phase alloys into non-interstitial RMn2H6(R = Y, Er, Dy, Ho, Gd) hydrides is presented.