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Potential high- T c superconducting lanthanum and yttrium hydrides at high pressure

Journal Article · · Proceedings of the National Academy of Sciences of the United States of America
 [1];  [1];  [2];  [3];  [4]
  1. Geophysical Laboratory, Carnegie Institution of Washington, Washington, DC 20015,
  2. Department of Chemistry and Chemical Biology, Cornell University, Ithaca, NY 14853,
  3. Laboratory of Atomic and Solid State Physics, Cornell University, Ithaca, NY 14853,
  4. Department of Civil and Environmental Engineering, The George Washington University, Washington, DC 20052,, School of Applied and Engineering Physics, Cornell University, Ithaca, NY 14853
Significance

Theoretical predictions and subsequent experimental observations of high-temperature superconductivity in dense hydrogen-rich compounds have reinvigorated the field of superconductivity. A systematic computational study of the hydrides of lanthanum and yttrium over a wide composition range reveals hydrogen-rich structures with intriguing electronic properties under pressure. Electron–phonon coupling calculations predict the existence of new superconducting phases, some exhibiting superconductivity in the range of room temperature. Moreover, the calculated stabilities indicate the materials could be synthesized at pressures that are currently accessible in the laboratory. The results open the prospect for the design, synthesis, and recovery of new high-temperature superconductors with potential practical applications.

Research Organization:
Carnegie Inst. of Washington, Washington, DC (United States); Energy Frontier Research Centers (EFRC) (United States). Energy Frontier Research in Extreme Environments (EFree)
Sponsoring Organization:
USDOE; USDOE National Nuclear Security Administration (NNSA); USDOE Office of Science (SC), Basic Energy Sciences (BES) (SC-22)
Grant/Contract Number:
NA0002006; SC0001057
OSTI ID:
1367773
Alternate ID(s):
OSTI ID: 1465964
Journal Information:
Proceedings of the National Academy of Sciences of the United States of America, Journal Name: Proceedings of the National Academy of Sciences of the United States of America Journal Issue: 27 Vol. 114; ISSN 0027-8424
Publisher:
Proceedings of the National Academy of SciencesCopyright Statement
Country of Publication:
United States
Language:
English

References (56)

McMillan's equation and the Tc of superconductors journal April 1972
CALYPSO: A method for crystal structure prediction journal October 2012
Crystal Structure and Superconductivity of PH 3 at High Pressures journal February 2016
Superconducting High-Pressure Phases Composed of Hydrogen and Iodine journal September 2015
Dense Hydrocarbon Structures at Megabar Pressures journal October 2016
Crystal orbital Hamilton populations (COHP): energy-resolved visualization of chemical bonding in solids based on density-functional calculations journal August 1993
Decomposition Products of Phosphine Under Pressure: PH 2 Stable and Superconducting? journal February 2016
Anisotropic Thermal Expansion of SiO 2 and AlPO 4 Clathrasils with the AST-Type Structure journal March 2010
Quasi-Molecular and Atomic Phases of Dense Solid Hydrogen journal April 2012
Conventional superconductivity at 203 kelvin at high pressures in the sulfur hydride system journal August 2015
Caesium in high oxidation states and as a p-block element journal September 2013
Reactions of xenon with iron and nickel are predicted in the Earth's inner core journal April 2014
Synthesis of sodium polyhydrides at high pressures journal July 2016
Crystal structure of the superconducting phase of sulfur hydride journal May 2016
Pressure-induced metallization of dense (H2S)2H2 with high-Tc superconductivity journal November 2014
Pressure-stabilized superconductive yttrium hydrides journal May 2015
Two-dimensional boron–nitrogen–carbon monolayers with tunable direct band gaps journal January 2015
Compressed sodalite-like MgH 6 as a potential high-temperature superconductor journal January 2015
The metallization and superconductivity of dense hydrogen sulfide journal May 2014
A little bit of lithium does a lot for hydrogen journal October 2009
Superconductivity at  100 K in dense SiH4(H2)2 predicted by first principles journal August 2010
Superconductive sodalite-like clathrate calcium hydride at high pressures journal April 2012
Crystal structures and dynamical properties of dense CO 2 journal September 2016
WH n under pressure journal March 2012
Structural phase transitions in yttrium under ultrahigh pressures journal August 2012
Anharmonic enhancement of superconductivity in metallic molecular Cmca   −  4 hydrogen at high pressure: a first-principles study journal October 2016
Microscopic Theory of Superconductivity journal April 1957
Effect of pressure on the superconducting T c of lanthanum journal April 1996
Superconductivity at 17 K in yttrium metal under nearly hydrostatic pressures up to 89 GPa journal March 2006
Electronic structure and superconducting properties of lanthanum journal December 2008
Phonons and superconductivity in fcc and dhcp lanthanum journal April 2010
Crystal structure prediction via particle-swarm optimization journal September 2010
High-pressure study of silane to 150 GPa journal April 2011
Theoretical study of the ground-state structures and properties of niobium hydrides under pressure journal November 2013
Cubic H 3 S around 200 GPa: An atomic hydrogen superconductor stabilized by sulfur journal May 2015
Dissociation products and structures of solid H 2 S at strong compression journal January 2016
Superconductivity in metastable phases of phosphorus-hydride compounds under high pressure journal January 2016
Anharmonic effects in atomic hydrogen: Superconductivity and lattice dynamical stability journal May 2016
Superconducting Behavior in Compressed Solid SiH 4 with a Layered Structure journal August 2008
Superconducting High Pressure Phase of Germane journal September 2008
Predicted High-Temperature Superconducting State in the Hydrogen-Dense Transition-Metal Hydride YH 3 at 40 K and 17.7 GPa journal August 2009
Substitutional Alloy of Bi and Te at High Pressure journal April 2011
Ground-State Structures of Atomic Metallic Hydrogen journal April 2011
High Pressure Stabilization and Emergent Forms of PbH 4 journal July 2011
Predicted Formation of Superconducting Platinum-Hydride Crystals under Pressure in the Presence of Molecular Hydrogen journal September 2011
Predicted Suppression of the Superconducting Transition of New High-Pressure Yttrium Phases with Increasing Pressure from First-Principles Calculations journal October 2012
High-Pressure Hydrogen Sulfide from First Principles: A Strongly Anharmonic Phonon-Mediated Superconductor journal April 2015
Tellurium Hydrides at High Pressures: High-Temperature Superconductors journal February 2016
Effect of Lattice Disorder on the Superconducting Transition Temperature journal October 1968
Metallic Hydrogen: A High-Temperature Superconductor? journal December 1968
Generalized Gradient Approximation Made Simple journal October 1996
Hydrogen Dominant Metallic Alloys: High Temperature Superconductors? journal May 2004
Structures and Potential Superconductivity in SiH 4 at High Pressure: En Route to “Metallic Hydrogen” journal January 2006
Novel Superconductivity in Metallic SnH 4 under High Pressure journal March 2007
Superconductivity in Hydrogen Dominant Materials: Silane journal March 2008
Approaching the strongly anharmonic limit with ab initio calculations of materials’ vibrational properties – a colloquium* journal November 2016

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