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Is there a pressure-induced discontinuous volume change in liquid Cs?

Takanori Hattori
Phys. Rev. B 97, 100101(R) – Published 14 March 2018
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Abstract

To verify the first-order liquid-liquid transition (LLT) in liquid Cs reported by Falconi et al. [Phys. Rev. Lett. 94, 125507 (2005).], the pressure dependence of liquid density was measured up to 5 GPa by an x-ray absorption method. The results showed that the density continuously increases over the entire pressure region investigated, without showing the previously reported large volume jump (ΔV/V17%) at 3.9 GPa. No existence of the volume jump is also suggested from the slopes of the melting curve in the phase diagram. Although the electronic transition is one of the most promising candidates that may cause LLT, it is unlikely to occur in liquid Cs because of the gradual nature of the 6s5d electron transfer.

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  • Received 29 December 2017
  • Revised 2 March 2018

DOI:https://doi.org/10.1103/PhysRevB.97.100101

©2018 American Physical Society

Physics Subject Headings (PhySH)

Condensed Matter, Materials & Applied Physics

Authors & Affiliations

Takanori Hattori*

  • J-PARC Center, Japan Atomic Energy Agency, Shirakata 2-4, Tokai, Ibaraki 319-1195, Japan

  • *hattori.takanori@jaea.go.jp

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Issue

Vol. 97, Iss. 10 — 1 March 2018

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