“…Most hydrides of the intermetallic compounds R 6 Fe 23 (R = Ho, Y) retain the cubic Fm3m host structure, R being located in site (24e), Fe occupying the four distinct positions (4b, 24d, 32f 1 and 32f 2 ) and H occupying the available interstitial sites [1,2]. We presented recently low magnetic field results of yttrium-substituted Ho 6 Fe 23 intermetallic alloys and their corresponding hydrides Ho 6−x Y x Fe 23 H z (x = 0.5, 1; z = 16) [3,4].…”