Model of Quantum Criticality in He3 bilayers Adsorbed on graphite
Strongly Correlated Electrons
2008-04-30 v2
Abstract
Recent experiments on He3 bilayers adsorbed on Graphite have shown striking quantum critical properties at the point where the first layer localizes. We model this system with the Anderson lattice plus inter-layer Coulomb repulsion in two dimensions. Assuming that quantum critical fluctuations come from a vanishing of the effective hybridization, we can reproduce several features of the system, including the apparent occurrence of two quantum critical points (QCP), the variation of the effective mass and coherence temperature with coverage.
Cite
@article{arxiv.0709.0354,
title = {Model of Quantum Criticality in He3 bilayers Adsorbed on graphite},
author = {Adel Benlagra and Catherine Pepin},
journal= {arXiv preprint arXiv:0709.0354},
year = {2008}
}
Comments
4 pages, 2 figures, new version as published on PRL, journal reference and DOI added