Pseudo-Quantum Criticality in Electron Liquids Exhibited in Expanded Alkali Metals

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With paying special attention to the divergence in the compressibility $κ$, we study the Coulombic screening in alkali metals to find singular long-range fluctuations in the electronic polarization originating from this divergence. As a consequence of this singularity, we predict the decrease of the equilibration distance between ions against the increase of $r_s$ the Wigner-Seitz radius of valence electrons, provided that the condition of $2r_c < r_s < 4r_c$ is satisfied with $r_c$ the ion-core radius. This prediction is in good quantitative agreement with the recent experiment on liquid Rb.
4 pages, 4 figures

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Other Condensed Matter, Materials Science

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http://salesiana.dossiersoluciones.com/handle/123456789/132531

Consulte el texto completo en el siguiente enlace:

https://arxiv.org/abs/0706.4001
 http://arxiv.org/abs/0706.4001

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arXiv