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arXiv · 0810.0680

The Resonating-Valence-Bond Ground State of Li Nanoclusters

D. Nissenbaum·L. Spanu·C. Attaccalite·B. Barbiellini·A. Bansil
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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.

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D. Nissenbaum, L. Spanu, C. Attaccalite, B. Barbiellini, A. Bansil. 2008-10-03. The Resonating-Valence-Bond Ground State of Li Nanoclusters. https://doi.org/10.1103/physrevb.79.035416

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