Faculté des sciences

Magnetic susceptibility of cerium: An LDA+DMFT study

Streltsov, S. V. ; Gull, E. ; Shorikov, A. O. ; Troyer, M. ; Anisimov, V. I. ; Werner, Philipp

In: Physical Review B - Condensed Matter and Materials Physics, 2012, vol. 85, no. 19, p. 195109

The magnetic properties of Ce in the α and γ phase are calculated within the local-density approximation and dynamical mean-field theory (LDA+DMFT) approach. The magnetic susceptibility in these two phases shows a similar behavior over a wide temperature range: a Curie-Weiss law at high temperatures, indicating the presence of local moments, followed by a maximum in a crossover regime, and a... Mehr

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    Summary
    The magnetic properties of Ce in the α and γ phase are calculated within the local-density approximation and dynamical mean-field theory (LDA+DMFT) approach. The magnetic susceptibility in these two phases shows a similar behavior over a wide temperature range: a Curie-Weiss law at high temperatures, indicating the presence of local moments, followed by a maximum in a crossover regime, and a saturation characteristic of a state with screened local moments at low temperature. The difference in experimentally observable magnetic properties is caused by the shift of the susceptibility to higher temperatures in the α phase compared to the γ phase.