# Superconducting Hydrides Under Pressure Domain: Superconductivity & Quantum Materials · 237 papers indexed · newest 2026-10-28 H3S, LaH10 and ternary hydrides; diamond-anvil-cell measurement challenges, reproducibility disputes and the search for metastable low-pressure hydrides. Key concepts: hydride, high pressure, LaH10, H3S, superhydride, diamond anvil cell, ternary hydride ## Most influential - **[Conventional superconductivity at 203 kelvin at high pressures in the sulfur hydride system](https://space-kitty.com/papers/arxiv:1506.08190)**. Alexander P. Drozdov, M. I. Eremets, Ivan A. Troyan et al. · 2015 · Nature (arXiv:1506.08190 · doi:10.1038/nature14964 · 2,753 citations). Source: > 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 contrast, the Bardeen-Cooper-Schrieffer (BCS) theory gives a guide for achieving high Tc and does not put bounds on Tc, all that is needed is a favorable combination of high frequency phonons, strong electron-phonon coupling, and a high dens… - **[Superconductivity at 250 K in lanthanum hydride under high pressures](https://space-kitty.com/papers/arxiv:1812.01561)**. A. P. Drozdov, P. P. Kong, V. S. Minkov et al. · 2018 · Nature (arXiv:1812.01561 · doi:10.1038/s41586-019-1201-8 · 1,644 citations). Source: > 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 parameters such as lattice vibrations at high frequencies. However, these general theories do not suffice to predict real superconductors. New superconducting materials can be predicted now with the aid of first principles calculations based on Dens… - **[Pressure-induced metallization of dense (H2S)2H2 with high-Tc superconductivity](https://space-kitty.com/papers/doi:10.1038/srep06968)**. Defang Duan, Yunxian Liu, Fubo Tian et al. · 2014 · Scientific Reports (doi:10.1038/srep06968 · 1,175 citations). Source: - **[Potential high- T c superconducting lanthanum and yttrium hydrides at high pressure](https://space-kitty.com/papers/doi:10.1073/pnas.1704505114)**. Hanyu Liu, Ivan I. Naumov, Roald Hoffmann et al. · 2017 · Proceedings of the National Academy of Sciences (doi:10.1073/pnas.1704505114 · 1,065 citations). Source: - **[Hydrogen Clathrate Structures in Rare Earth Hydrides at High Pressures: Possible Route to Room-Temperature Superconductivity](https://space-kitty.com/papers/doi:10.1103/physrevlett.119.107001)**. Feng Peng, Ying Sun, Chris J. Pickard et al. · 2017 · Physical Review Letters (doi:10.1103/physrevlett.119.107001 · 959 citations). Source: - **[Superconductive sodalite-like clathrate calcium hydride at high pressures](https://space-kitty.com/papers/arxiv:1203.0263)**. Hui Wang, John S. Tse, Kaori Tanaka et al. · 2012 · Proceedings of the National Academy of Sciences (arXiv:1203.0263 · doi:10.1073/pnas.1118168109 · 926 citations). Source: > 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 that in the stoichiometry CaH6 a body-centred cubic structure with hydrogen that forms unusual "sodalite" cages containing enclathrated Ca stabilizes above pressure 150 GPa. The stability of this structure is derived from the acceptance by tw… - **[Superconductivity up to 243 K in the yttrium-hydrogen system under high pressure](https://space-kitty.com/papers/doi:10.1038/s41467-021-25372-2)**. P. P. Kong, Vasily S. Minkov, Mikhail A. Kuzovnikov et al. · 2021 · Nature Communications (doi:10.1038/s41467-021-25372-2 · 534 citations). Source: > 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 and discuss the contradictions between different theoretical calculations and experimental data. We synthesized yttrium hydrides with the compositions of YH 3 , YH 4 , YH 6 and YH 9 in a diamond anvil cell and studied their crystal structu… > _Abstract excerpt by P. P. Kong et al., CC-BY, https://doi.org/10.1038/s41467-021-25372-2; truncated._ - **[High-Temperature Superconducting Phase in Clathrate Calcium Hydride CaH 6 up to 215 K at a Pressure of 172 GPa](https://space-kitty.com/papers/doi:10.1103/physrevlett.128.167001)**. Liang Ma, Kui Wang, Yu Xie et al. · 2022 · Physical Review Letters (doi:10.1103/physrevlett.128.167001 · 477 citations). Source: - **[Superconductivity at 250 K in lanthanum hydride under high pressures](https://space-kitty.com/papers/openalex:W3098955174)**. Alexander P. Drozdov, P. P. Kong, Vasily S. Minkov et al. · 2019 · RePEc: Research Papers in Economics (539 citations). Source: - **[A perspective on conventional high-temperature superconductors at high pressure: Methods and materials](https://space-kitty.com/papers/arxiv:1905.06693)**. José A. Flores‐Livas, Lilia Boeri, Antonio Sanna et al. · 2020 · Physics Reports (arXiv:1905.06693 · doi:10.1016/j.physrep.2020.02.003 · 530 citations). Source: > 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 electron-phonon coupling. Here we describe recent advances in experimental techniques, superconductivity theory and first-principles computational methods which have made possible these discoveries. This work aims to provide an up-to-date compendi… - **[Anomalous High‐Temperature Superconductivity in YH 6](https://space-kitty.com/papers/arxiv:1908.01534)**. Ivan A. Troyan, Dmitrii V. Semenok, Alexander G. Kvashnin et al. · 2021 · Advanced Materials (arXiv:1908.01534 · doi:10.1002/adma.202006832 · 472 citations). Source: > 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 theoretically predicted (\>270 K). The measured upper critical magnetic field B$\_c$$\_2$(0) of YH$\_6$ was found to be 116-158 T, which is 2-2.5 times larger than the calculated value. A pronounced shift of T$\_c$ in yttrium deuteride YD$\_6$ with… - **[Superconductivity at 253 K in lanthanum-yttrium ternary hydrides](https://space-kitty.com/papers/arxiv:2012.04787)**. Dmitrii V. Semenok, Ivan A. Troyan, Alexander G. Kvashnin et al. · 2020 · Materials Today, 2021 (arXiv:2012.04787 · doi:10.1016/j.mattod.2021.03.025 · 288 citations). Source: > 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 magnetic field $B\_{C2(0)}$ up to ${135 T}$ at 183 GPa. This is one of the first examples of ternary high-$T\_{C}$ superconducting hydrides. Our experiments show that a part of the atoms in the structures of recently discovered ${Im3m}$-$YH\_{6}$… - **[Superconductivity above 200 K Observed in Superhydrides of Calcium](https://space-kitty.com/papers/arxiv:2103.16917)**. Z. Li, X. He, C. L. Zhang et al. · 2021 · Nature Communications 13, 2863 (2022) (arXiv:2103.16917 · doi:10.1038/s41467-022-30454-w · 290 citations). Source: > 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 200 K in addition to sulfur hydride & rare-earth hydride system. The materials are synthesized at the synergetic conditions of 160~190 GPa and ~2000 K using diamond anvil cell combined with in-situ laser heating technique. The superconducti… - **[Route to a Superconducting Phase above Room Temperature in Electron-Doped Hydride Compounds under High Pressure](https://space-kitty.com/papers/doi:10.1103/physrevlett.123.097001)**. Ying Sun, Jian Lv, Yu Xie et al. · 2019 · Physical Review Letters (doi:10.1103/physrevlett.123.097001 · 453 citations). Source: - **[A perspective on conventional high-temperature superconductors at high pressure: Methods and materials](https://space-kitty.com/papers/openalex:W3104116474)**. Flores-Livas, J., Boeri, L., Sanna, A. et al. · 2020 · MPG.PuRe (Max Planck Society) (430 citations). Source: ## Newest - **[Separating the Density Wave Phase from Zero-Resistance Superconductivity in La$\_4$Ni$\_3$O$\_{10}$](https://space-kitty.com/papers/arxiv:2610.38959)**. P. Puphal, A. Suthar, B. Wehinger et al. · 2026 (arXiv:2610.38959). Source: - **[Coexistence of superconductivity and magnetic order in BaFe$\_2$S$\_3$: evidence for orbital-selective delocalization](https://space-kitty.com/papers/arxiv:2610.38966)**. Y. Oubaid, N. S. Dhami, P. Fertey et al. · 2026 (arXiv:2610.38966). Source: - **[Non-uniform grids to accelerate electron-phonon coupling calculations for superconductivity](https://space-kitty.com/papers/arxiv:2610.27718)**. Kang Wang, Siyu Chen, Sun-Woo Kim et al. · 2026 (arXiv:2610.27718). Source: - **[Bulk superconductivity in quintuple-layer square-planar nickelate La6Ni5O12](https://space-kitty.com/papers/arxiv:2610.20249)**. Mengzhu Shi, Mei Du, Hongyu Li et al. · 2026 (arXiv:2610.20249). Source: - **[H$\_2$-Like Units and Pressure-Tunable High-$T\_\\mathrm{c}$ Superconductivity in NaH$\_6$](https://space-kitty.com/papers/arxiv:2610.17148)**. Tianran Chen, Taner Yildirim · 2026 (arXiv:2610.17148). Source: - **[Pressure-induced double-dome superconductivity in doped kagome metal Cs(V0.86Ta0.14)3Sb5 without charge density wave](https://space-kitty.com/papers/arxiv:2610.12257)**. Haochen Sun, Jing Wang, Deng Hu et al. · 2026 (arXiv:2610.12257). Source: - **[Enhanced Coulomb pseudopotentials in high-pressure hydrides from first principles](https://space-kitty.com/papers/arxiv:2610.12563)**. Kieran Bozier, Chris J. Pickard · 2026 (arXiv:2610.12563). Source: - **[Periodic Trends and a Physics-Based Multistage Search for High-$T\_c$ Hydride Superconductors](https://space-kitty.com/papers/arxiv:2609.35582)**. Tianran Chen, Taner Yildirim · 2026 (arXiv:2609.35582). Source: - **[Hidden magnetic order within the pressure induced superconducting dome of UTe2](https://space-kitty.com/papers/arxiv:2609.29168)**. Kaixin Ye, Lubin Wang, Dengpeng Yuan et al. · 2026 (arXiv:2609.29168). Source: - **[Different reconstruction pathways toward superconductivity in TaRhTe4 and TaIrTe4 Weyl semimetals](https://space-kitty.com/papers/arxiv:2609.25899)**. Jinyu Zhao, Yang Fu, Congcong Le et al. · 2026 (arXiv:2609.25899). Source: --- Space Kitty Archive · https://space-kitty.com · API: https://space-kitty.com/api/v1 · MCP: https://space-kitty.com/mcp · Premium: $0.20/request via x402 (Base Sepolia (testnet)). Metadata: arXiv (CC0), OpenAlex (CC0), Europe PMC (CC BY/CC0 works), ClinicalTrials.gov.