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Volume-Collapse Transitions in the Rare Earth Metals

A. K. McMahan·C. Huscroft·R. T. Scalettar·E. L. Pollock
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Abstract

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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A. K. McMahan, C. Huscroft, R. T. Scalettar, E. L. Pollock. 1998-05-06. Volume-Collapse Transitions in the Rare Earth Metals. https://doi.org/10.1023/a%3A1008698422183

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