--- title: Superconducting Temperature Record Set At Ambient Pressure description: Researchers used a pressure-quench protocol on the cuprate Hg1223 (HgBa2Ca2Cu3O8+δ), cooling it under high pressure and then suddenly releasing that pressure,... canonical: https://daily.dev/posts/superconducting-temperature-record-set-at-ambient-pressure-tsit8jtds twitter:card: summary_large_image twitter:site: @dailydotdev og:type: website og:site_name: daily.dev og:title: Superconducting Temperature Record Set At Ambient Pressure | daily.dev og:description: Researchers used a pressure-quench protocol on the cuprate Hg1223 (HgBa2Ca2Cu3O8+δ), cooling it under high pressure and then suddenly releasing that pressure,... og:url: https://daily.dev/posts/superconducting-temperature-record-set-at-ambient-pressure-tsit8jtds og:image: https://api.daily.dev/og/posts/tSit8Jtds.png og:image:alt: Superconducting Temperature Record Set At Ambient Pressure og:image:width: 1200 og:image:height: 630 og:locale: en --- > ## Documentation Index > Fetch the complete documentation index at: https://daily.dev/llms.txt > Use this file to discover all available pages before exploring further. # Superconducting Temperature Record Set At Ambient Pressure **[Hackaday](https://daily.dev/sources/hackaday)** · 2 min read · 0 upvotes · 0 comments ## Summary Researchers used a pressure-quench protocol on the cuprate Hg1223 (HgBa2Ca2Cu3O8+δ), cooling it under high pressure and then suddenly releasing that pressure, to lock in an elevated superconducting transition temperature at ambient pressure. This raised the material's Tc from its known 133 K to 151 K (-122°C), a new record for ambient-pressure superconductivity, published in PNAS Physics by Liangzi Deng and colleagues, with press releases from Argonne National Laboratory and the University of Houston. While still far from room temperature, the technique suggests a path toward reducing the extreme cooling requirements of superconductors. ## Full article daily.dev links to this article rather than hosting it. Read it at the original source: ## Questions this post answers ### What is the new highest superconducting transition temperature achieved at ambient pressure using the pressure-quench protocol? The cuprate superconductor Hg1223 (HgBa2Ca2Cu3O8+δ) reached a transition temperature of 151 K at ambient pressure using a pressure-quench protocol, up from its previous known transition temperature of 133 K. The method cools the material under high pressure, then suddenly releases the pressure, locking in the enhanced superconducting state described by researcher Liangzi Deng and colleagues in PNAS Physics. _Track breakthroughs like this pressure-quench superconductor result as they emerge on daily.dev._ ### How does the pressure-quench protocol work for improving cuprate superconductors like Hg1223? The pressure-quench protocol cools a sample of the cuprate Hg1223 while under high pressure, then suddenly releases that pressure, which locks in structural changes that raise the superconducting transition temperature from 133 K to 151 K. This avoids needing to maintain crushing pressures continuously, since the enhanced state persists at ambient pressure afterward. _Follow practical advances in superconductor cooling requirements alongside other physics research on daily.dev._ ## Similar posts on daily.dev - [Scientists Create New Type of Semiconductor that Holds Superconducting Promise](https://daily.dev/posts/scientists-create-new-type-of-semiconductor-that-holds-superconducting-promise-c7dv6ywj5) · The Quantum Insider · 1 upvotes · 0 comments - [Solid-State Elastocaloric Cooling Hits Sub-Zero Mark](https://daily.dev/posts/solid-state-elastocaloric-cooling-hits-sub-zero-mark-c8fmv3ivg) · IEEE Spectrum · 0 upvotes · 0 comments - [How quantum computers can aid the search for room-temperature superconductors](https://daily.dev/posts/how-quantum-computers-can-aid-the-search-for-room-temperature-superconductors-yvchbh2xg) · Phys.org · 0 upvotes · 0 comments - [New Tantalum Process Could Ease Manufacturing of Superconducting Quantum Chips](https://daily.dev/posts/new-tantalum-process-could-ease-manufacturing-of-superconducting-quantum-chips-q4sfn6mba) · The Quantum Insider · 0 upvotes · 0 comments - [Using A Solid-State Elastocaloric Cooler To Freeze Water](https://daily.dev/posts/using-a-solid-state-elastocaloric-cooler-to-freeze-water-czgv5gfkv) · Hackaday · 0 upvotes · 0 comments --- Tags: [#science](https://daily.dev/tags/science), [#physics](https://daily.dev/tags/physics) [View this post on daily.dev](https://daily.dev/posts/superconducting-temperature-record-set-at-ambient-pressure-tsit8jtds) ```json {"@context":"https://schema.org","@graph":[{"@type":"Organization","@id":"https://daily.dev/#organization","name":"daily.dev","url":"https://daily.dev","logo":{"@type":"ImageObject","url":"https://daily.dev/apple-touch-icon.png","width":180,"height":180},"sameAs":["https://twitter.com/dailydotdev","https://github.com/dailydotdev","https://www.linkedin.com/company/daily-dev-ltd"]},{"@type":"WebSite","@id":"https://daily.dev/#website","url":"https://daily.dev","name":"daily.dev","publisher":{"@id":"https://daily.dev/#organization"},"potentialAction":{"@type":"SearchAction","target":{"@type":"EntryPoint","urlTemplate":"https://daily.dev/search?q={search_term_string}"},"query-input":"required name=search_term_string"}}]} {"@context":"https://schema.org","@type":"TechArticle","headline":"Superconducting Temperature Record Set At Ambient Pressure","url":"https://daily.dev/posts/superconducting-temperature-record-set-at-ambient-pressure-tsit8jtds","mainEntityOfPage":{"@type":"WebPage","@id":"https://daily.dev/posts/superconducting-temperature-record-set-at-ambient-pressure-tsit8jtds"},"datePublished":"2026-08-21T02:16:39.285Z","dateModified":"2026-09-14T06:56:11.053Z","description":"Researchers used a pressure-quench protocol on the cuprate Hg1223 (HgBa2Ca2Cu3O8+δ), cooling it under high pressure and then suddenly releasing that pressure,...","image":"https://media.daily.dev/image/upload/f_auto,q_auto/v1/posts/8b8dc1411cb0dd5c29f9a90eba468081?_a=AQAEuop","thumbnailUrl":"https://media.daily.dev/image/upload/f_auto,q_auto/v1/posts/8b8dc1411cb0dd5c29f9a90eba468081?_a=AQAEuop","isAccessibleForFree":true,"articleSection":"Hackaday","inLanguage":"en","publisher":{"@type":"Organization","name":"daily.dev","url":"https://daily.dev","logo":{"@type":"ImageObject","url":"https://daily.dev/apple-touch-icon.png","width":180,"height":180}},"author":{"@type":"Organization","name":"Hackaday","logo":"https://media.daily.dev/image/upload/s--JhDfhy70--/f_auto,q_auto/v1767541814/logos/hackaday","url":"https://daily.dev/sources/hackaday"},"commentCount":0,"discussionUrl":"https://daily.dev/posts/superconducting-temperature-record-set-at-ambient-pressure-tsit8jtds","interactionStatistic":[{"@type":"InteractionCounter","interactionType":{"@type":"LikeAction"},"userInteractionCount":0},{"@type":"InteractionCounter","interactionType":{"@type":"CommentAction"},"userInteractionCount":0}],"keywords":"science,physics","timeRequired":"PT2M"} {"@context":"https://schema.org","@type":"BreadcrumbList","itemListElement":[{"@type":"ListItem","position":1,"name":"Home","item":"https://daily.dev"},{"@type":"ListItem","position":2,"name":"Hackaday","item":"https://daily.dev/sources/hackaday"},{"@type":"ListItem","position":3,"name":"Superconducting Temperature Record Set At Ambient Pressure"}]} {"@context":"https://schema.org","@type":"FAQPage","@id":"https://daily.dev/posts/superconducting-temperature-record-set-at-ambient-pressure-tsit8jtds#faq","mainEntity":[{"@type":"Question","name":"What is the new highest superconducting transition temperature achieved at ambient pressure using the pressure-quench protocol?","acceptedAnswer":{"@type":"Answer","text":"The cuprate superconductor Hg1223 (HgBa2Ca2Cu3O8+δ) reached a transition temperature of 151 K at ambient pressure using a pressure-quench protocol, up from its previous known transition temperature of 133 K. The method cools the material under high pressure, then suddenly releases the pressure, locking in the enhanced superconducting state described by researcher Liangzi Deng and colleagues in PNAS Physics. Track breakthroughs like this pressure-quench superconductor result as they emerge on daily.dev."}},{"@type":"Question","name":"How does the pressure-quench protocol work for improving cuprate superconductors like Hg1223?","acceptedAnswer":{"@type":"Answer","text":"The pressure-quench protocol cools a sample of the cuprate Hg1223 while under high pressure, then suddenly releases that pressure, which locks in structural changes that raise the superconducting transition temperature from 133 K to 151 K. This avoids needing to maintain crushing pressures continuously, since the enhanced state persists at ambient pressure afterward. Follow practical advances in superconductor cooling requirements alongside other physics research on daily.dev."}}]} ```