edoc

Emergence of superconductivity in doped H2O ice at high pressure

Flores-Livas, Jose A. and Sanna, Antonio and Grauzinyte, Migle and Davydov, Arkadiy and Goedecker, Stefan and Marques, Miguel A. L.. (2017) Emergence of superconductivity in doped H2O ice at high pressure. Scientific Reports, 7. p. 6825.

[img]
Preview
PDF - Published Version
Available under License CC BY (Attribution).

5Mb

Official URL: http://edoc.unibas.ch/58471/

Downloads: Statistics Overview

Abstract

We investigate the possibility of achieving high-temperature superconductivity in hydrides under pressure by inducing metallization of otherwise insulating phases through doping, a path previously used to render standard semiconductors superconducting at ambient pressure. Following this idea, we study H2O, one of the most abundant and well-studied substances, we identify nitrogen as the most likely and promising substitution/dopant. We show that for realistic levels of doping of a few percent, the phase X of ice becomes superconducting with a critical temperature of about 60 K at 150 GPa. In view of the vast number of hydrides that are strongly covalent bonded, but that remain insulating up to rather large pressures, our results open a series of new possibilities in the quest for novel high-temperature superconductors.
Faculties and Departments:05 Faculty of Science > Departement Physik > Physik > Physik (Goedecker)
UniBasel Contributors:Goedecker, Stefan
Item Type:Article, refereed
Article Subtype:Research Article
Publisher:Nature Publishing Group
ISSN:2045-2322
e-ISSN:2045-2322
Note:Publication type according to Uni Basel Research Database: Journal article
Language:English
Identification Number:
Last Modified:17 Jan 2018 11:01
Deposited On:17 Jan 2018 11:01

Repository Staff Only: item control page