The Resonating-Valence-Bond Ground State of Li Nanoclusters

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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.
4 pages, 2 figures, 3 tables

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Strongly Correlated Electrons, Materials Science

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http://salesiana.dossiersoluciones.com/handle/123456789/219920

Consulte el texto completo en el siguiente enlace:

https://arxiv.org/abs/0810.0680
 http://arxiv.org/abs/0810.0680
 Phys. Rev. B 79, 035416 (2009)
 doi:10.1103/PhysRevB.79.035416

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arXiv