Temperature-induced itinerant electron metamagnetism in intermetallic RCo3 compounds

The phenomenon of temperature-induced itinerant electron metamagnetism in a zero external field is of the same nature as the widely investigated metamagnetic transitions induced by magnetic fields (external or internal). Recently, temperature-induced itinerant metamagnetism was discovered in the rareearth intermetallic RCo3 compounds. Systematic investigations of the RCo3 series made it possible to determine many specific features of this new phenomenon and to formulate criteria to reveal such transitions in other magnetic materials as well. This paper presents a brief review of the existing works and original results on temperature-induced itinerant-electron metamagnetism in substituted RCo3 compounds.