Exchange interactions in hydrogen-induced amorphous YFe2

Hydrogenation of the Y2Fe alloy

“…In particular, at a hydronitriding temperature of 200°C (sample 3), we observe partial amorphization, which reaches comple tion at 250-300 or even 350°C: the forming interme tallic hydride is X ray amorphous (samples [3][4][5][6]. Along with such an amorphous hydride, the X ray dif fraction pattern of the reaction products shows lines of yttrium trihydride, whereas the hydronitriding prod ucts obtained at 200 and 300°C contain no dihydride.…”

“…Moreover, such amorphiza tion radically changes the magnetic characteristics of hydride phases of iron based intermetallic compounds [5,6]. For this reason, knowledge of the conditions and boundaries of amorphization in the course of hydrogenation of iron containing intermetallic com pounds is not only of scientific interest but also of practical importance.…”