The Resonating-Valence-Bond Ground State of Li Nanoclusters
Strongly Correlated Electrons
2009-02-17 v1 Materials Science
Abstract
We have performed Diffusion Quantum Monte Carlo simulations of Li clusters showing that Resonating-Valence-Bond (RVB) pairing correlations between electrons provide a substantial contribution to the cohesive energy. The RVB effects are identified in terms of electron transfers from s- to p-like character, constituting a possible explanation for the breakdown of the Fermi liquid picture observed in recent high resolution Compton scattering experiments for bulk Li.
Keywords
Cite
@article{arxiv.0810.0680,
title = {The Resonating-Valence-Bond Ground State of Li Nanoclusters},
author = {D. Nissenbaum and L. Spanu and C. Attaccalite and B. Barbiellini and A. Bansil},
journal= {arXiv preprint arXiv:0810.0680},
year = {2009}
}
Comments
4 pages, 2 figures, 3 tables