A first-order transition above the Curie temperature for ferromagnetic [formula omitted] [formula omitted] and 0.88) compounds has been confirmed by applying a magnetic field. The magnetic state changes from the paramagnetic to the ferromagnetic state and the transition field increases with temperature, indicating an itinerant electron metamagnetic (IEM) transition. The IEM transition is broad in [formula omitted] and becomes clearer in [formula omitted] which takes a negative slope of the Arrott plot. The volume change just above the Curie temperature for [formula omitted] is huge, about 1.5%, which is caused by a large magnetic moment induced by the IEM transition.
ASJC Scopus subject areas
- Physics and Astronomy(all)