Magnetic phase diagram of La(Fe0.873Co0.007Al0.12)13 cluster intermetallic compound

Abstract The magnetic properties of the La(Fe 0.873 Co 0.007 Al 0.12 ) 13 intermetallic compound have been studied. The compound is a cluster antiferromagnet showing the metamagnetic transition. The magnetic phase diagram of the compound has been constructed. The temperature dependence of the inverse paramagnetic susceptibility of La(Fe 0.873 Co 0.007 Al 0.12 ) 13 obeys the Curie–Weiss law. The large positive paramagnetic Curie point indicates the presence of predominantly ferromagnetic exchange interactions. The Neel temperature can be considered as the temperature of the ferromagnetic ordering of the Fe magnetic moments in clusters coupled antiferromagnetically.