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

2007/06/27 by Hideaki Maebashi, Maebashi, Hideaki, Yasutami Takada +1 · 1 citation
Chemistry · Materials Science · Physics and Astronomy · #Advanced Physical and Chemical Molecular Interactions #FOS: Physical sciences #Materials Science (cond-mat.mtrl-sci) #Other Condensed Matter (cond-mat.other) #Solid-state spectroscopy and crystallography #Spectroscopy and Quantum Chemical Studies

paper · pdf · doi:10.48550/arxiv.0706.4001

openalex publication_date 2007/06/27 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28

Abstract

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.

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