skip to main content
OSTI.GOV title logo U.S. Department of Energy
Office of Scientific and Technical Information

Title: Superconducting Phases of Phosphorus Hydride Under Pressure: Stabilization by Mobile Molecular Hydrogen

Journal Article · · Angewandte Chemie (International Edition)

Abstract At 80 GPa, phases with the PH 2 stoichiometry, which are composed of simple cubic like phosphorus layers capped with hydrogen atoms and layers of H 2 molecules, are predicted to be important species contributing to the recently observed superconductivity in compressed phosphine. The electron–phonon coupling in these phases results from the motions of the phosphorus atoms and the hydrogen atoms bound to them. The role of the mobile H 2 layers is to decrease the Coulomb repulsion between the negatively charged hydrogen atoms capping the phosphorus layers. An insulating PH 5 phase, the structure and bonding of which is reminiscent of diborane, is also predicted to be metastable at this pressure.

Research Organization:
Carnegie Inst. of Washington, Washington, DC (United States)
Sponsoring Organization:
USDOE National Nuclear Security Administration (NNSA); National Science Foundation (NSF)
Grant/Contract Number:
NA0002006
OSTI ID:
1533101
Alternate ID(s):
OSTI ID: 1374468
Journal Information:
Angewandte Chemie (International Edition), Vol. 56, Issue 34; ISSN 1433-7851
Publisher:
WileyCopyright Statement
Country of Publication:
United States
Language:
English
Citation Metrics:
Cited by: 17 works
Citation information provided by
Web of Science

References (23)

The pressure effect on the superconducting transition temperature of black phosphorus journal October 2002
Superconductivity in metastable phases of phosphorus-hydride compounds under high pressure journal January 2016
Hydrogen Dominant Metallic Alloys: High Temperature Superconductors? journal May 2004
Superconductivity and Chemistry journal September 1997
The Chemical Imagination at Work inVery Tight Places journal May 2007
Conventional superconductivity at 203 kelvin at high pressures in the sulfur hydride system journal August 2015
Pressure-induced metallization of dense (H2S)2H2 with high-Tc superconductivity journal November 2014
Predicting crystal structures and properties of matter under extreme conditions via quantum mechanics: the pressure is on journal January 2015
XtalOpt: An open-source evolutionary algorithm for crystal structure prediction journal February 2011
Proton or Deuteron Transfer in Phase IV of Solid Hydrogen and Deuterium journal January 2013
X-ray diffraction and equation of state of hydrogen at megabar pressures journal October 1996
Decomposition Products of Phosphine Under Pressure: PH 2 Stable and Superconducting? journal February 2016
Chemie unter höchsten Drücken: eine Herausforderung für die chemische Intuition journal May 2007
Quasimolecules in Compressed Lithium journal December 2016
The metallization and superconductivity of dense hydrogen sulfide journal May 2014
Quasimolecules in Compressed Lithium journal December 2016
Crystal Structure and Superconductivity of PH 3 at High Pressures journal February 2016
Simple-cubic–simple-hexagonal transition in phosphorus under pressure journal April 1999
Mercury under Pressure acts as a Transition Metal: Calculated from First Principles journal July 2015
Supraleitung und Chemie journal September 1997
Mercury under Pressure acts as a Transition Metal: Calculated from First Principles journal July 2015
Dissociation products and structures of solid H 2 S at strong compression journal January 2016
High-Pressure Phase Stability and Superconductivity of Pnictogen Hydrides and Chemical Trends for Compressed Hydrides journal February 2016

Cited By (2)

Stoichiometric evolutions of PH3 under high pressure: implication for high-Tc superconducting hydrides journal January 2019
Pressure-stabilized binary compounds of magnesium and silicon journal February 2018