Volume-Collapse Transitions in the Rare Earth Metals

Details Volume-Collapse Transitions in the Rare Earth Metals Volume-Collapse Transitions in the Rare Earth Metals

1998-05-06

arxiv.org/abs/cond-mat/9805064v1

J. Comput.-Aided Mater. Des. 5, 131 (1998)

Physics

Condensed Matter

Strongly Correlated Electrons

20 pages, 17 figures, LaTeX

Scientific paper

10.1023/A:1008698422183

We describe current experimental and theoretical understanding of the pressure-induced volume collapse transitions occurring in the early trivalent rare earth metals. General features of orbitally realistic mean-field based theories used to calculate these transitions are discussed. Potential deficiencies of these methods are assessed by comparing mean field and exact Quantum Monte Carlo solutions for the one-band Hubbard and two-band periodic Anderson lattice models. Relevant parameter regimes for these models are determined from local density constrained occupation calculations.

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