A predictive standard model for heavy electron systems

Details A predictive standard model for heavy electron systems A predictive standard model for heavy electron systems

2010-05-27

arxiv.org/abs/1005.5184v1

J. Phys.: Conf. Ser. 273, 012066 (2011)

Physics

Condensed Matter

Strongly Correlated Electrons

4 pages, 2 figures, submitted to J. Phys.: Conf. Ser. for SCES 2010

Scientific paper

10.1088/1742-6596/273/1/012066

We propose a predictive standard model for heavy electron systems based on a detailed phenomenological two-fluid description of existing experimental data. It leads to a new phase diagram that replaces the Doniach picture, describes the emergent anomalous scaling behavior of the heavy electron (Kondo) liquid measured below the lattice coherence temperature, T*, seen by many different experimental probes, that marks the onset of collective hybridization, and enables one to obtain important information on quantum criticality and the superconducting/antiferromagnetic states at low temperatures. Because T* is ~J^2\rho/2, the nearest neighbor RKKY interaction, a knowledge of the single-ion Kondo coupling, J, to the background conduction electron density of states, \rho, makes it possible to predict Kondo liquid behavior, and to estimate its maximum superconducting transition temperature in both existing and newly discovered heavy electron families.

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