Superconducting Hydrides Under Pressure
H3S, LaH10 and ternary hydrides; diamond-anvil-cell measurement challenges, reproducibility disputes and the search for metastable low-pressure hydrides.
Most influential
- Conventional superconductivity at 203 kelvin at high pressures in the sulfur hydride system
A superconductor is a material that can conduct electricity with no resistance below its critical temperature (Tc). The highest Tc that has been achieved in cuprates1 is 133 K at ambient pressure2 and 164 K at high pressures3. As the nature of superconductivity in these materials has still not been explained, the prospects for a higher Tc are not clear. In c…
Article2,753 citationsarXiv:1506.08190doi:10.1038/nature14964 - Superconductivity at 250 K in lanthanum hydride under high pressures
The discovery of superconductivity at 203 K in H3S brought attention back to conventional superconductors whose properties can be described by the Bardeen-Cooper-Schrieffer (BCS) and the Migdal-Eliashberg theories. These theories predict that high, and even room temperature superconductivity (RTSC) is possible in metals possessing certain favorable parameter…
Article1,644 citationsarXiv:1812.01561doi:10.1038/s41586-019-1201-8 - Pressure-induced metallization of dense (H2S)2H2 with high-Tc superconductivityArticle1,175 citationsdoi:10.1038/srep06968
- Potential high- T c superconducting lanthanum and yttrium hydrides at high pressureArticle1,065 citationsdoi:10.1073/pnas.1704505114
- Hydrogen Clathrate Structures in Rare Earth Hydrides at High Pressures: Possible Route to Room-Temperature SuperconductivityArticle959 citationsdoi:10.1103/physrevlett.119.107001
- Superconductive sodalite-like clathrate calcium hydride at high pressures
Hydrogen-rich compounds hold promise as high-temperature superconductors under high pressures. Recent theoretical hydride structures on achieving high-pressure superconductivity are composed mainly of H2 fragments. Through a systematic investigation of Ca hydrides with different hydrogen contents using particle-swam optimization structural search, we show th…
Article926 citationsarXiv:1203.0263doi:10.1073/pnas.1118168109 - Superconductivity up to 243 K in the yttrium-hydrogen system under high pressure
Abstract The discovery of superconducting H 3 S with a critical temperature T c ∼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 T c s among binary compounds…
Abstract excerpt by P. P. Kong et al., CC-BY, https://doi.org/10.1038/s41467-021-25372-2; truncated.
Article534 citationsdoi:10.1038/s41467-021-25372-2 - High-Temperature Superconducting Phase in Clathrate Calcium Hydride CaH 6 up to 215 K at a Pressure of 172 GPaArticle477 citationsdoi:10.1103/physrevlett.128.167001
- Superconductivity at 250 K in lanthanum hydride under high pressuresArticle539 citations
- A perspective on conventional high-temperature superconductors at high pressure: Methods and materials
Two hydrogen-rich materials, H$_3$S and LaH$_{10}$, synthesized at megabar pressures, have revolutionized the field of condensed matter physics providing the first glimpse to the solution of the hundred-year-old problem of room temperature superconductivity. The mechanism underlying superconductivity in these exceptional compounds is the conventional electro…
Article530 citationsarXiv:1905.06693doi:10.1016/j.physrep.2020.02.003 - Anomalous High‐Temperature Superconductivity in YH 6
Pressure-stabilized hydrides are a new rapidly growing class of high-temperature superconductors which is believed to be described within the conventional phonon-mediated mechanism of coupling. Here we report the synthesis of yttrium hexahydride Im3m-YH$_6$ that demonstrates the superconducting transition with T$_c$ = 224 K at 166 GPa, much lower than the th…
Article472 citationsarXiv:1908.01534doi:10.1002/adma.202006832 - Superconductivity at 253 K in lanthanum-yttrium ternary hydrides
Polyhydrides offer intriguing perspectives as high-temperature superconductors. Here we report the high-pressure synthesis of a series of lanthanum-yttrium ternary hydrides: cubic hexahydride $(La,Y)H_{6}$ with a critical temperature $T_{C}$ = 237 +/- 5 K and decahydrides $(La,Y)H_{10}$ with a maximum $T_{C}$ ~${253 K}$ and an extrapolated upper critical mag…
Article288 citationsarXiv:2012.04787doi:10.1016/j.mattod.2021.03.025 - Superconductivity above 200 K Observed in Superhydrides of Calcium
Searching for superconductivity with Tc near room temperature is of great interest both for fundamental science & many potential applications. Here we report the experimental discovery of superconductivity with maximum critical temperature (Tc) above 210 K in calcium superhydrides, the new alkali earth hydrides experimentally showing superconductivity above …
Article290 citationsarXiv:2103.16917doi:10.1038/s41467-022-30454-w - Route to a Superconducting Phase above Room Temperature in Electron-Doped Hydride Compounds under High PressureArticle453 citationsdoi:10.1103/physrevlett.123.097001
- A perspective on conventional high-temperature superconductors at high pressure: Methods and materialsArticle430 citations
Newest work
- Separating the Density Wave Phase from Zero-Resistance Superconductivity in La$_4$Ni$_3$O$_{10}$PreprintarXiv:2610.38959
- Coexistence of superconductivity and magnetic order in BaFe$_2$S$_3$: evidence for orbital-selective delocalizationPreprintarXiv:2610.38966
- Non-uniform grids to accelerate electron-phonon coupling calculations for superconductivityPreprintarXiv:2610.27718
- Bulk superconductivity in quintuple-layer square-planar nickelate La6Ni5O12PreprintarXiv:2610.20249
- H$_2$-Like Units and Pressure-Tunable High-$T_\mathrm{c}$ Superconductivity in NaH$_6$PreprintarXiv:2610.17148
- Pressure-induced double-dome superconductivity in doped kagome metal Cs(V0.86Ta0.14)3Sb5 without charge density wavePreprintarXiv:2610.12257
- Enhanced Coulomb pseudopotentials in high-pressure hydrides from first principlesPreprintarXiv:2610.12563
- Periodic Trends and a Physics-Based Multistage Search for High-$T_c$ Hydride SuperconductorsPreprintarXiv:2609.35582
- Hidden magnetic order within the pressure induced superconducting dome of UTe2PreprintarXiv:2609.29168
- Different reconstruction pathways toward superconductivity in TaRhTe4 and TaIrTe4 Weyl semimetalsPreprintarXiv:2609.25899