The magnetic and structural transformations in the nickel crystal within the temperature range 470 < T< 631 K is studied on the basis of general phenomenological theory of spin-orbit phase transitions. A new phase transition at Tls \approx 570 K conditioned by cooperative relativistic interactions effect is prognosticated and the experimental information validating the existence of phase transition is presented.
Categories: cond-mat.str-el cond-mat.mtrl-sci cond-mat.other