He3 bi-layers as a simple example of de-confinement
Abstract
We consider the recent experiments on He3 bi-layers, showing evidence for a quantum critical point (QCP) at which the first layer localizes. Using the Anderson lattice in two dimensions with the addition of a small dispersion of the f-fermion, we modelize the system of adsorbed He3 layers. The first layer represents the f-fermions at the brink of localization while the second layer behaves as a free Fermi sea. We study the quantum critical regime of this system, evaluate the effective mass in the Fermi liquid phase and the coherence temperature and give a fit of the experiments and interpret its main features. Our model can serve as well as a predictive tool used for better determination of the experimental parameters.
Keywords
Cite
@article{arxiv.0810.2280,
title = {He3 bi-layers as a simple example of de-confinement},
author = {Adel Benlagra and Catherine Pépin},
journal= {arXiv preprint arXiv:0810.2280},
year = {2009}
}
Comments
15 pages, 15 figures. Submitted to PRB