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arXiv · 0706.4001

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

Hideaki Maebashi·Yasutami Takada
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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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Hideaki Maebashi, Yasutami Takada. 2007-06-27. Pseudo-Quantum Criticality in Electron Liquids Exhibited in Expanded Alkali Metals. https://arxiv.org/abs/0706.4001

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