Magnetic susceptibility of cerium: An LDA+DMFT study

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

doi:10.1103/PhysRevB.85.195109

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Journal article

Magnetic susceptibility of cerium: An LDA+DMFT study

Streltsov, S. V. Institute of Metal Physics, Ekaterinburg, Russia - Ural Federal University, Ekaterinburg, Russia
Gull, E. Department of Physics, Columbia University, New York, USA
Shorikov, A. O. Institute of Metal Physics, Ekaterinburg, Russia - Ural Federal University, Ekaterinburg, Russia
Troyer, M. Theoretical Physics, ETH Zurich, Switzerland
Anisimov, V. I. Institute of Metal Physics, Ekaterinburg, Russia - Ural Federal University, Ekaterinburg, Russia
Werner, Philipp Department of Physics, University of Fribourg, Switzerland - Theoretical Physics, ETH Zurich, Switzerland

07.05.2012

Published in:

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

English 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.

Faculty

Faculté des sciences et de médecine

Department

Département de Physique

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