Phase boundary of hot dense fluid hydrogen

We investigated the phase transformation of hot dense fluid hydrogen using static high-pressure laser-heating experiments in a laser-heated diamond anvil cell. The results show anomalies in the heating efficiency that are likely to be attributed to the phase transition from a diatomic to monoatomic...

Full description

Saved in:
Bibliographic Details
Published in:Scientific reports 2015-11, Vol.5 (1), p.16560-16560, Article 16560
Main Authors: Ohta, Kenji, Ichimaru, Kota, Einaga, Mari, Kawaguchi, Sho, Shimizu, Katsuya, Matsuoka, Takahiro, Hirao, Naohisa, Ohishi, Yasuo
Format: Article
Language:English
Subjects:
140/125
140/133
639/766/119/2795
704/445/846
Diffraction
Humanities and Social Sciences
Hydrogen
multidisciplinary
Phase transitions
Pressure
Science
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:We investigated the phase transformation of hot dense fluid hydrogen using static high-pressure laser-heating experiments in a laser-heated diamond anvil cell. The results show anomalies in the heating efficiency that are likely to be attributed to the phase transition from a diatomic to monoatomic fluid hydrogen (plasma phase transition) in the pressure range between 82 and 106 GPa. This study imposes tighter constraints on the location of the hydrogen plasma phase transition boundary and suggests higher critical point than that predicted by the theoretical calculations.
ISSN:2045-2322
2045-2322
DOI:10.1038/srep16560