DOE PAGES title logo U.S. Department of Energy
Office of Scientific and Technical Information

Title: Superconductivity up to 243 K in the yttrium-hydrogen system under high pressure

Journal Article · · Nature Communications
ORCiD logo [1];  [1];  [2];  [1];  [1]; ORCiD logo [3]; ORCiD logo [3]; ORCiD logo [4]; ORCiD logo [5];  [5];  [6]; ORCiD logo [5]; ORCiD logo [1]
  1. Max Planck Inst. for Chemistry, Mainz (Germany)
  2. Russian Academy of Sciences (RAS), Chernogolovka (Russian Federation). Inst. of Solid State Physics
  3. Florida State Univ., Tallahassee, FL (United States). National High Magnetic Field Lab.
  4. Los Alamos National Lab. (LANL), Los Alamos, NM (United States)
  5. Univ. of Chicago, IL (United States). Center for Advanced Radiation Sources
  6. Max Planck Inst. of Microstructure Physics, Halle (Germany)

The discovery of superconducting H3S with a critical temperature Tc~200 K opened a door to room temperature superconductivity and stimulated further extensive studies of hydrogen-rich compounds stabilized by high pressure. Here, we report a comprehensive study of the yttrium-hydrogen system with the highest predicted Tcs among binary compounds and discuss the contradictions between different theoretical calculations and experimental data. We synthesized yttrium hydrides with the compositions of YH3, YH4, YH6 and YH9 in a diamond anvil cell and studied their crystal structures, electrical and magnetic transport properties, and isotopic effects. We found superconductivity in the Im-3m YH6 and P63/mmc YH9 phases with maximal Tcs of ~220 K at 183 GPa and ~243 K at 201 GPa, respectively. Fm-3m YH10 with the highest predicted Tc > 300 K was not observed in our experiments, and instead, YH9 was found to be the hydrogen-richest yttrium hydride in the studied pressure and temperature range up to record 410 GPa and 2250 K.

Research Organization:
Argonne National Laboratory (ANL), Argonne, IL (United States). Advanced Photon Source (APS); Florida State Univ., Tallahassee, FL (United States); Los Alamos National Laboratory (LANL), Los Alamos, NM (United States); Univ. of Chicago, IL (United States)
Sponsoring Organization:
National Science Foundation (NSF); USDOE Office of Science (SC), Basic Energy Sciences (BES)
Grant/Contract Number:
89233218CNA000001; AC02-06CH11357; FG02-94ER14466; SC0002613
OSTI ID:
1814995
Report Number(s):
LA-UR--19-30094; APS_263164
Journal Information:
Nature Communications, Journal Name: Nature Communications Journal Issue: 1 Vol. 12; ISSN 2041-1723
Publisher:
Nature Publishing GroupCopyright Statement
Country of Publication:
United States
Language:
ENGLISH

References (58)

Anomalous High‐Temperature Superconductivity in YH 6 journal March 2021
Synthesis and Stability of Lanthanum Superhydrides journal December 2017
A Boosted Critical Temperature of 166 K in Superconducting D 3 S Synthesized from Elemental Sulfur and Hydrogen journal August 2020
Megabar high-pressure cells for Raman measurements journal January 2003
Neutron spectroscopy of nickel deuteride journal December 2013
Superconductivity at 161 K in thorium hydride ThH10: Synthesis and properties journal November 2019
Possible superconductivity at ∼70 K in tin hydride SnHx under high pressure journal January 2022
A perspective on conventional high-temperature superconductors at high pressure: Methods and materials journal April 2020
Hexagonal to cubic phase transition in YH3 under high pressure journal February 2005
X-ray diffraction investigation of the hexagonal–fcc structural transition in yttrium trihydride under hydrostatic pressure journal June 2006
Crystal structures of under high pressure journal March 2011
Intercomparison of pressure standards (Au, Pt, Mo, MgO, NaCl and Ne) to 2.5 Mbar: INTERCOMPARISON OF PRESSURE STANDARDS journal August 2012
Compressibility of solids journal January 1987
Superconductivity at 39 K in magnesium diboride journal March 2001
Superconductivity above 130 K in the Hg–Ba–Ca–Cu–O system journal May 1993
Universal nodal Fermi velocity journal May 2003
Conventional superconductivity at 203 kelvin at high pressures in the sulfur hydride system journal August 2015
Conductive dense hydrogen journal November 2011
Double-slit photoelectron interference in strong-field ionization of the neon dimer journal January 2019
Superconducting phase diagram of H3S under high magnetic fields journal June 2019
High-temperature superconductivity on the verge of a structural instability in lanthanum superhydride journal November 2021
Superconductivity at 250 K in lanthanum hydride under high pressures journal May 2019
Room-temperature superconductivity in a carbonaceous sulfur hydride journal October 2020
Pressure-induced metallization of dense (H2S)2H2 with high-Tc superconductivity journal November 2014
Pressure-stabilized superconductive yttrium hydrides journal May 2015
Crystal structure prediction using ab initio evolutionary techniques: Principles and applications journal June 2006
Potential high- T c superconducting lanthanum and yttrium hydrides at high pressure journal June 2017
DIOPTAS : a program for reduction of two-dimensional X-ray diffraction data and data exploration journal May 2015
Superconductivity of Lanthanum Superhydride Investigated Using the Standard Four-Probe Configuration under High Pressures journal October 2020
T–P phase diagrams and isotope effects in the Mo–H/D systems journal November 2004
Displacive ordering in the hydrogen sublattice of yttrium trihydride journal January 2006
Ab initio random structure searching journal January 2011
High-pressure structures of yttrium hydrides journal July 2017
High-temperature superconductivity in sulfur hydride evidenced by alternating-current magnetic susceptibility journal May 2019
Theory of Superconductivity journal December 1957
Temperature and Purity Dependence of the Superconducting Critical Field, H c 2 . III. Electron Spin and Spin-Orbit Effects journal July 1966
Superconductivity of LaH 10 and LaH 16 polyhydrides journal January 2020
High- T c state of lanthanum hydrides journal July 2020
Structural phase transitions in yttrium up to 183 GPa journal September 2020
Atomic volumes of rare-earth metals under pressures to 40 GPa and above journal March 1992
Superconductivity up to 164 K in HgBa 2 Ca m − 1 Cu m O 2 m + 2 + δ ( m =1, 2, and 3) under quasihydrostatic pressures journal August 1994
Infrared spectroscopic study of the band-gap closure in YH 3 at high pressure journal March 2006
High-pressure study of YH 3 by Raman and visible absorption spectroscopy journal July 2007
Long-period stacking structures in yttrium trihydride at high pressure journal August 2007
Crystal structure prediction via particle-swarm optimization journal September 2010
Phase separation of lanthanum hydride under high pressure journal February 2011
First-principles study of the pressure and crystal-structure dependences of the superconducting transition temperature in compressed sulfur hydrides journal June 2015
Stable high-pressure phases in the H-S system determined by chemically reacting hydrogen and sulfur journal April 2017
Predicted High-Temperature Superconducting State in the Hydrogen-Dense Transition-Metal Hydride YH 3 at 40 K and 17.7 GPa journal August 2009
New Iron Hydrides under High Pressure journal December 2014
Hydrogen Clathrate Structures in Rare Earth Hydrides at High Pressures: Possible Route to Room-Temperature Superconductivity journal September 2017
Evidence for Superconductivity above 260 K in Lanthanum Superhydride at Megabar Pressures journal January 2019
Synthesis of Yttrium Superhydride Superconductor with a Transition Temperature up to 262 K by Catalytic Hydrogenation at High Pressures journal March 2021
Hydrogen Dominant Metallic Alloys: High Temperature Superconductors? journal May 2004
EXPGUI , a graphical user interface for GSAS journal April 2001
Synthesis of FeH 5 : A layered structure with atomic hydrogen slabs journal July 2017
Pressure-Induced Metallization of Yttrium Trihydride, YH 3 journal January 2012
Superconductivity of Pure H 3 S Synthesized from Elemental Sulfur and Hydrogen journal December 2019

Cited By (1)

Quantum Rényi entropy by optimal thermodynamic integration paths text January 2021