{"id":"doi:10.5281/zenodo.19102883","kind":"article","title":"Pressure-Locked Apical-Anion Resonance in Multilayer Hg Cuprates: An AI-Guided Route Toward Ambient-Pressure Room-Temperature Superconductivity","authors":["SIKX HILTON"],"author_count":1,"year":2026,"published":"2026-03-18","venue":"Zenodo (CERN European Organization for Nuclear Research)","cited_by":0,"doi":"10.5281/zenodo.19102883","arxiv_id":null,"nct_id":null,"source_url":"https://doi.org/10.5281/zenodo.19102883","archive_url":"https://space-kitty.com/papers/doi:10.5281/zenodo.19102883","updated":null,"pmid":null,"pmcid":null,"openalex_id":"W7139022203","pdf_url":null,"abstract":"Ambient-pressure room-temperature superconductivity remains one of the highest-valueunsolved problems in condensed-matter physics. The contemporary materials landscapepoints in two conflicting directions. On one side, machine-learning-accelerated searches havebecome scientifically serious: ambient-pressure conventional hydride candidates with predictedtransition temperatures above 80 K have been reported, and end-to-end AI-acceleratedworkflows have already delivered experimentally confirmed new superconductors. On theother side, large-scale analyses of conventional superconductors at ambient pressure indicatethat room-temperature conventional superconductivity is unlikely in practice because thesame trends that raise the pairing scale also drive systems toward instability. Simultaneously,the Hg-based cuprates remain the strongest ambient-pressure platform presently known:Hg-1223 defines the ambient cuprate record, fluorination compresses the in-plane lattice andraises the pressure-enhanced ceiling, and pressure-quench protocols have now produced aretained ambient-pressure state at 151 K without maintaining pressure.Motivated by these facts, this paper argues that the most credible route to room-temperature operation at ambient pressure is not a purely conventional hydride, but ametastable multilayer cuprate in which apical-anion chemistry, interlayer inequivalence, andpressure-locked local structure cooperate to amplify both the pairing scale and the phasestiffness. The primary target family is fluorine-stabilized HgBa2Ca2Cu3O8+δ−xFx processedthrough a pressure-quench-and-lock sequence and then retained either by bulk encapsulationor by epitaxial strain. The central physical claim is that shortening the in-plane latticeparameter and reshaping the apical environment can raise the superexchange-driven pairingscale, while a pressure-locked charge-transfer imbalance between inner and outer CuO2planes can create an interlayer shape-resonance channel that elevates the phase coherencetemperature beyond the current retained ambient record.We formulate an effective model, define a synthesis program, identify quantitative controlvariables, and list decisive transport, spectroscopic, structural, isotope, and relaxationsignatures. The manuscript therefore functions as a falsifiable target paper: if the predictedstructural lock-in, interlayer imbalance, and gap hierarchy are not observed together, thenthe proposed mechanism is wrong.","abstract_license":"CC-BY (publisher license, via OpenAlex)","license":"cc-by","is_open_access":true,"retracted":false,"peer_reviewed":null,"categories":["Physics of Superconductivity and Magnetism"],"details":null,"provenance":"openalex","attribution":"Abstract of \"Pressure-Locked Apical-Anion Resonance in Multilayer Hg Cuprates: An AI-Guided Route Toward Ambient-Pressure Room-Temperature Superconductivity\" by SIKX HILTON, https://doi.org/10.5281/zenodo.19102883, used under its Creative Commons Attribution license (CC-BY); markup removed, otherwise unmodified.","topics":[{"slug":"room-temperature-claims","name":"Room-Temperature Superconductivity Claims & Replication","domain_slug":"superconductivity"}],"cited_in_dossiers":[]}