We present our finding that an especially simple scaling expression describes the formation of a new state of quantum matter, the Kondo Fermi liquid (KL) in heavy electron materials. Emerging at T∗ as a result of the collective coherent hybridization of localized f electrons and conduction electrons, the KL possesses a non-Landau density of states varying as (1−T/T∗)3/2[1+ln(T∗/T)]. We show that four independent experimental probes verify this scaling behavior and that for CeIrIn5 the KL state density is in excellent agreement with the recent microscopic calculations of hybridization in this material by Shim, Haule, and Kotliar.
@article{arxiv.0711.0789,
title = {Universal Behavior in Heavy Electron Materials},
author = {Yi-feng Yang and David Pines},
journal= {arXiv preprint arXiv:0711.0789},
year = {2008}
}