Room-Temperature Superconductivity Claims & Replication
High-profile claims (LK-99, retracted hydride papers) and replication efforts; the evidentiary standard of zero resistance plus a bulk Meissner effect.
Most influential
- Superconductivity in sodalite-like yttrium hydride clathrates
We report ab-initio calculations of the superconducting properties of two high-Tc sodalite-like clathrate yttrium hydrides, YH6 and YH10, within the fully anisotropic ME theory, including Coulomb corrections. For both compounds we find almost isotropic superconducting gaps, resulting from a uniform distribution of the electron-phonon coupling over phonon mod…
Article154 citationsarXiv:1901.04001doi:10.1103/physrevb.99.220502 - Everything you always wanted to know about metallic hydrogen but were afraid to ask
The hydrogen molecule is made from the first and lightest element in the periodic table. When hydrogen gas is either compressed or cooled, it forms the simplest molecular solid. This solid exhibits many interesting and fundamental physical phenomena. It is believed that if the density of the solid is increased by compressing it to very high pressures, hydrog…
Abstract excerpt by Eugene Gregoryanz et al., CC-BY, https://doi.org/10.1063/5.0002104; truncated.
Article89 citationsdoi:10.1063/5.0002104 - Absence of conventional room-temperature superconductivity at high pressure in carbon-doped H3S
In this work, we show that the same theoretical tools that successfully explain other hydrides systems under pressure seem to be at odds with the recently claimed conventional room temperature superconductivity of the carbonaceous sulfur hydride. We support our conclusions with I) the absence of a dominant low-enthalpy stoichiometry and crystal structure in …
Article54 citationsarXiv:2104.03710doi:10.1103/physrevb.104.064510 - The First Room-Temperature Ambient-Pressure Superconductor
For the first time in the world, we succeeded in synthesizing the room-temperature superconductor ($T_c \ge 400$ K, 127$^\circ$C) working at ambient pressure with a modified lead-apatite (LK-99) structure. The superconductivity of LK-99 is proved with the Critical temperature ($T_c$), Zero-resistivity, Critical current ($I_c$), Critical magnetic field ($H_c$…
Preprint52 citationsarXiv:2307.12008 - Synthesis of possible room temperature superconductor LK-99:Pb$_9$Cu(PO$_4$)$_6$O
The quest for room-temperature superconductors has been teasing scientists and physicists, since its inception in 1911 itself. Several assertions have already been made about room temperature superconductivity but were never verified or reproduced across the labs. The cuprates were the earliest high transition temperature superconductors, and it seems that c…
Article39 citationsarXiv:2307.16402doi:10.1088/1361-6668/acf002 - Absence of near-ambient superconductivity in LuH$_{2\pm\text{x}}$N$_y$
Recently near-ambient superconductivity was claimed in N-doped lutetium hydride (ref. 1). This induces a worldwide fanaticism about the dream of room temperature superconductivity under low pressures. By using a high pressure and high temperature synthesis technique, we have successfully obtained the nitrogen doped lutetium hydride (LuH$_{2\pm\text{x}}$N$_y$…
Article87 citationsarXiv:2303.08759doi:10.1038/s41586-023-06162-w - Superconductivity and electron self-energy in tungsten-sulfur-hydride monolayer
Abstract Hydrogen-rich structures have recently gained attention as a candidate for room-temperature superconductors. Hydrogen has high phonon frequencies and can be an ideal component for superconductors if it also exhibits strong electron–phonon coupling. In bulk materials, this has been achieved only under very high pressure. Two-dimensional hydrogen-deco…
Abstract excerpt by Jakkapat Seeyangnok et al., CC-BY, https://doi.org/10.1088/2053-1583/ad2523; truncated.
Article29 citationsdoi:10.1088/2053-1583/ad2523 - Absence of superconductivity in LK-99 at ambient conditions
The report of synthesis of modified Lead apatite (LK-99) with evidence of superconductivity at more than boiling water temperature has steered the whole scientific community. There have been several failures to reproduce superconductivity in LK-99 including partial successes. Here, we have continued our efforts to synthesize phase pure LK-99 with improved pr…
Article35 citationsarXiv:2308.03544doi:10.1021/acsomega.3c06096 - Ferromagnetic half levitation of LK-99-like synthetic samples
We successfully synthesized polycrystalline LK-99-like ceramic samples with a solid-state-sintering method. Powder X-ray diffraction shows that the main contents are $\mathrm{Pb_{10-x}Cu_x(PO_4)_6O}$ and $\mathrm{Cu_2S}$, consistent with recent reports [arXiv:2307.12037; arXiv:2308.01192]. In some small flaky fragments, we successfully observed ``half levita…
Article41 citationsarXiv:2308.03110doi:10.1007/s11433-023-2201-9 - Electronic structure of the putative room-temperature superconductor Pb$_9$Cu(PO$_4$)$_6$O
A recent paper [Lee {\em et al.}, J. Korean Cryt. Growth Cryst. Techn. {\bf 33}, 61 (2023)] provides some experimental indications that Pb$_{10-x}$Cu$_x$(PO$_4$)$_6$O with $x\approx 1$, coined LK-99, might be a room-temperature superconductor at ambient pressure. Our density-functional theory calculations show lattice parameters and a volume contraction with…
Article43 citationsarXiv:2308.00676doi:10.1103/physrevb.108.l121110 - Leading components and pressure-induced color changes in N-doped lutetium hydride
Recent experimental study by Dias {\it et al.} claims to have discovered room-temperature superconductivity in lutetium-nitrogen-hydrogen system at 1 GPa [Nature 615, 244 (2023)], which sheds light on the long-held dream of ambient superconductivity. However, all follow-up experiments found no evidence of superconductivity. The compositions and the crystal s…
Article29 citationsarXiv:2304.08992doi:10.1016/j.scib.2023.06.007 - Interorbital singlet pairing in Sr2RuO4 : A Hund's superconductor
We study the superconducting gap function of Sr$_2$RuO$_4$. By solving the linearized Eliashberg equation with a correlated pairing vertex extracted from a dynamical mean-field calculation we identify the dominant pairing channels. An analysis of the candidate gap functions in orbital and quasiparticle band basis reveals that an inter-orbital singlet pairing…
Article24 citationsarXiv:2105.08448doi:10.1103/physrevb.105.155101 - Microscopic theory of colour in lutetium hydride
Nitrogen-doped lutetium hydride has recently been proposed as a near-ambient-conditions superconductor. Interestingly, the sample transforms from blue to pink to red as a function of pressure, but only the pink phase is claimed to be superconducting. Subsequent experimental studies have failed to reproduce the superconductivity, but have observed pressure-dr…
Article21 citationsarXiv:2304.07326doi:10.17863/cam.102168 - On the dynamical stability of copper-doped lead apatite
The recent claim of room temperature superconductivity in a copper-doped lead apatite compound, called LK-99, has sparked remarkable interest and controversy. Subsequent experiments have largely failed to reproduce the claimed superconductivity, while theoretical works have identified multiple key features including strong electronic correlation, structural …
Article15 citationsarXiv:2309.11541doi:10.1038/s41524-024-01206-9 - Superconductivity scandal: the inside story of deception in a rising star’s physics labArticle18 citationsdoi:10.1038/d41586-024-00716-2
Newest work
- Growth and morphology of core-shell nanowires incorporating dissimilar hexagonal semiconductors: the case of InAs-ZnTePreprintarXiv:2610.39770
- Incoherent dark excitons extend Floquet-like physics across time and momentumPreprintarXiv:2610.38156
- Programmable Quantum-Geometric Coherence for Ambient-Pressure Room-Temperature SuperconductivityArticledoi:10.5281/zenodo.23734254
- 1MEL-H: A Mechanically and Electrochemically Locked Hydrogen SuperconductorArticledoi:10.5281/zenodo.23613523
- Multi-property Feynman-Kac Steering of Crystal Diffusion ModelsPreprintarXiv:2610.24828
- Room_Temperature_SuperconductorArticledoi:10.5281/zenodo.23299438
- MOSAIC-SC: A Modular Oxide–Moiré– Hydrogen Platform for Testing Cooperative Pairing at Ambient PressureArticledoi:10.5281/zenodo.23301989
- Beyond BCS: Pairing Mechanisms, Material Families and the Contested Path to Ambient-Condition SuperconductivityArticledoi:10.5281/zenodo.23031326
- Electrochemical Growth of Full Volume Meissner Effect Superconducting BKBOPreprintarXiv:2609.30677
- The Coldest Current of All: A Historical Development Review of Superconductivity from Leyden to the CupratesArticledoi:10.5281/zenodo.22956820