Incipient magnetism in the cubic perovskites MgCNi3 and YBRh3: A comparison
P. Jiji Thomas Joseph, Prabhakar P. Singh
Abstract
Using density-functional-based methods, we have studied the effects of incipient magnetism in the cubic perovskites MgCNi3 and YBRh3 . Our results show that (i) at the equilibrium volume, both MgCNi3 and YBRh3 alloys remain paramagnetic and (ii) at expanded volumes, only YBRh3 shows the possibility of a ferromagnetic phase with a local magnetic moment larger than 0.25 muB per Rh atom.
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