Enhanced Friedel Structure and Proton Pairing in Dense Solid Hydrogen

Kazutaka Nagao, S. A. Bonev, A. Bergara, N. W. Ashcroft

Research output: Contribution to journalArticlepeer-review

3 Citations (Scopus)

Abstract

The mechanism of proton pairing in dense solid hydrogen, and its progression with density, are both studied using effective potentials between protons which include electronic response up to quadratic terms. For high pressures nonlinear effects originating with different pairs are crucial in establishing the net attraction within a given pair, and in this picture Friedel oscillations are considerably enhanced by quadratic response, subsequently playing a very important role in the overall pairing. Calculated vibron frequencies also show substantial agreement with experiment, reflecting at the same time significant changes in the physical character of the pairing itself.

Original languageEnglish
Number of pages1
JournalPhysical Review Letters
Volume90
Issue number3
DOIs
Publication statusPublished - 2003 Jan 1
Externally publishedYes

ASJC Scopus subject areas

  • Physics and Astronomy(all)

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