2002/11/04 by P. Fazekas, Fazekas, P., A. Kiss +1
Physics and Astronomy · #FOS: Physical sciences #Strongly Correlated Electrons (cond-mat.str-el) #cond-mat.str-el
paper · pdf · doi:10.48550/arxiv.cond-mat/0211064
submitted to the Proceedings of the NATO Advanced Research Workshop on Concepts in Electron Correlation Hvar, Croatia, 2002 (8 pages, 4 figures), typos corrected
arxiv created 2002/11/05 · arxiv updated 2009/11/30
The large number of low-lying states of d- and f-shells supports a variety of order parameters. The effective dimensionality of the local Hilbert space depends on the strength, and kind, of intersite interactions. This gives rise to complicated phase diagrams, and an enhanced role of frustration and fluctuation effects. The general principles are illustrated on the example of the effect of a magnetic field on quadrupolar phase transitions in some Pr-based skutterudite compounds.