Unknown

Dataset Information

0

Possibility of realizing superionic ice VII in external electric fields of planetary bodies.


ABSTRACT: In a superionic (SI) ice phase, oxygen atoms remain crystallographically ordered while protons become fully diffusive as a result of intramolecular dissociation. Ice VII's importance as a potential candidate for a SI ice phase has been conjectured from anomalous proton diffusivity data. Theoretical studies indicate possible SI prevalence in large-planet mantles (e.g., Uranus and Neptune) and exoplanets. Here, we realize sustainable SI behavior in ice VII by means of externally applied electric fields, using state-of-the-art nonequilibrium ab initio molecular dynamics to witness at first hand the protons' fluid dance through a dipole-ordered ice VII lattice. We point out the possibility of SI ice VII on Venus, in its strong permanent electric field.

SUBMITTER: Futera Z 

PROVIDER: S-EPMC7244312 | biostudies-literature | 2020 May

REPOSITORIES: biostudies-literature

altmetric image

Publications

Possibility of realizing superionic ice VII in external electric fields of planetary bodies.

Futera Zdenek Z   Tse John S JS   English Niall J NJ  

Science advances 20200522 21


In a superionic (SI) ice phase, oxygen atoms remain crystallographically ordered while protons become fully diffusive as a result of intramolecular dissociation. Ice VII's importance as a potential candidate for a SI ice phase has been conjectured from anomalous proton diffusivity data. Theoretical studies indicate possible SI prevalence in large-planet mantles (e.g., Uranus and Neptune) and exoplanets. Here, we realize sustainable SI behavior in ice VII by means of externally applied electric f  ...[more]

Similar Datasets

| S-EPMC8049047 | biostudies-literature
| S-EPMC4918809 | biostudies-literature
| S-EPMC8105728 | biostudies-literature
| S-EPMC6145594 | biostudies-literature
| S-EPMC7124953 | biostudies-literature
| S-EPMC4560814 | biostudies-literature
| S-EPMC3271865 | biostudies-literature
| S-EPMC4105784 | biostudies-literature
2006-02-01 | GSE4106 | GEO
| S-EPMC2849089 | biostudies-literature