# Search for high-Tcconventional superconductivity at megabar pressures in the lithium-sulfur system

@article{Kokail2016SearchFH,
title={Search for high-Tcconventional superconductivity at megabar pressures in the lithium-sulfur system},
author={C. Kokail and Christopher Heil and Lilia Boeri Institute of Theoretical and Computational Physics and Graz University of Technology Department of Materials and University of Oxford},
journal={Physical Review B},
year={2016},
volume={94}
}
• Published 24 May 2016
• Physics
• Physical Review B
Superconductivity at high-pressures has attracted considerable interest after the report of a record critical temperature (${T}_{c}$) of 203 K in sulfur hydride (H${}_{3}$S) at 200 GPa. In this work, the authors predict several novel lithium-sulfur compounds at high pressure using evolutionary crystal structure prediction techniques and investigate their superconducting properties with density functional linear response calculations. The calculations reveal an intrinsic correlation between…

## Figures and Tables from this paper

• Physics
• 2018
The observation of a superconducting critical temperature $$T_\mathrm{c}$$Tc exceeding 200K in ultra-dense hydrogen sulfide has demonstrated that high-$$T_\mathrm{c}$$Tc superconductivity can be
• Physics
Physical review letters
• 2019
It is reported that a pressure-induced stable Li_{6}P electride, identified by first-principles swarm structure calculations, becomes a superconductor with a predicted superconducting transition temperature T_{c} of 39.3 K, which is the highest among the already known electrides.
• Materials Science
The Journal of Physical Chemistry C
• 2022
Evolutionary structure searches revealed a plethora of stable and low-enthalpy metastable phases in the S-P-H ternary phase diagram under pressure. A wide variety of crystalline structure types were
• Physics, Materials Science
New Journal of Physics
• 2022
Recently, electrides have received increasing attention due to their multifunctional properties as superconducting, catalytic, insulating, and electrode materials, with potential to offer other
• Physics
• 2017
Alkali metal compounds exhibit novel characteristics under pressure, such as antimetallization in CLi4, high superconductivity at 80 K in highly compressed Li3S, and the existence of unexpected
• Physics, Materials Science
• 2022
Recently, electrides have received increasing attention due to their multifunctional properties as superconducting, catalytic, insulating, and electrode materials, with potential to offer other
• Materials Science
Crystals
• 2019
Interest in Na-S compounds stems from their use in battery materials at 1 atm, as well as the potential for superconductivity under pressure. Evolutionary structure searches coupled with Density
• Materials Science, Physics
Physical Review B
• 2021
Electrides, which accommodate excess of electrons in lattice interstitials as anions, usually exhibit interesting properties and broad applications. Until now, most electrides, especially at high
• Physics
Journal of physics. Condensed matter : an Institute of Physics journal
• 2021
In this work we explore the phase diagram of the binary Nb–S system from ambient pressures up to 250 GPa using ab initio evolutionary crystal structure prediction. We find several new stable
• Physics, Materials Science
npj Computational Materials
• 2020
Aluminum and sulfur, as abundant elements in earth, only form Al 2 S 3 in nature at ambient pressure. It has been realized that the stoichiometry of compounds may change under high pressure, which is

## References

SHOWING 1-10 OF 47 REFERENCES

• Physics
• 2015
Abstract Due to its low atomic mass, hydrogen is the most promising element to search for high-temperature phononic superconductors. However, metallic phases of hydrogen are only expected at extreme
• Physics, Materials Science
• 2016
The recent breakthrough discovery of unprecedentedly high temperature superconductivity of 203 K in compressed sulfur hydrides has stimulated significant interest in finding new hydrogen-containing
• Physics
• 2014
The highest critical temperature of superconductivity Tc has been achieved in cuprates: 133 K at ambient pressure and 164 K at high pressures. As the nature of superconductivity in these materials is
• Physics, Materials Science
Nature
• 2000
Lithium is considered a ‘simple’ metal because, under ordinary conditions of pressure and temperature, the motion of conduction electrons is only weakly perturbed by interactions with the cubic
• Physics
Proceedings of the National Academy of Sciences
• 2010
In the present work, first-principles methods are used in an attempt to predict the superconducting critical temperature (Tc) as a function of pressure (P) for three metal-hydride systems of the MH3 form, namely ScH 3, YH3, and LaH3 and are able to point out a general trend in the Tc-dependence on P.
• Chemistry
Scientific reports
• 2014
The high pressure structures, metallization, and superconductivity of recently synthesized H2-containing compounds (H2S)2H2 are elucidated by ab initio calculations. The ordered crystal structure
• Physics
The Journal of chemical physics
• 2015
The common tendency of compressed H and Li to adopt three-fold coordinated structures as found is explained by the fact that such structures are capable of yielding a profound pseudogap in the electronic densities of states at the Fermi level, thereby reducing the kinetic energy.
• Physics
Science
• 2016
The results demonstrate that an external static magnetic field of about 0.7 tesla is expelled from the volume of 119Sn foil as a result of the shielding by the H2S sample at temperatures between 4.7 K and approximately 140 K, revealing a superconducting state of H1S.
• Materials Science
• 2000
Abstract We have investigated the high-pressure behavior of lithium sulfide Li2S by Raman spectroscopy and synchrotron angle-dispersive powder X-ray diffraction in a diamond anvil cell (T=298 K).
• Physics, Chemistry
Journal of the American Chemical Society
• 2016
The results suggest that the superconductivity recently observed by Drozdov, Eremets, and Troyan when phosphine was subject to pressures of 207 GPa in a diamond anvil cell may result from these, and other, decomposition products of phosphine.