Quantum sensing at the megabar frontier

Access through your institution Buy or subscribe The typical hallmarks of superconductivity are a sharp drop in resistance below the superconducting transition temperature and the Meissner

effect — the expulsion of magnetic fields from the interior of the superconductor. In hydrogen-rich materials at megabar conditions, theory predicts that strong electron–phonon coupling and

high characteristic phonon frequencies could stabilize superconducting condensates up to around 300 K. Following this blueprint, many experiments over the past decade have identified a

number of promising hydride superconductors operating at relatively high temperatures. Yet, evidence of the Meissner effect has been elusive because of the sensitivity limitations of

magnetic sensors at extreme pressures. Owing to similar limitations that resistivity measurements also suffer at such extreme pressure conditions, a convincing proof of the Meissner effect

would significantly strengthen the claims of superconductivity in hydrides. This is a preview of subscription content, access via your institution ACCESS OPTIONS Access through your

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AUTHOR INFORMATION AUTHORS AND AFFILIATIONS * Nature Physics https://www.nature.com/naturephysics Leonardo Benini Authors * Leonardo Benini View author publications You can also search for

this author inPubMed Google Scholar CORRESPONDING AUTHOR Correspondence to Leonardo Benini. RIGHTS AND PERMISSIONS Reprints and permissions ABOUT THIS ARTICLE CITE THIS ARTICLE Benini, L.

Quantum sensing at the megabar frontier. _Nat. Phys._ 20, 543 (2024). https://doi.org/10.1038/s41567-024-02485-1 Download citation * Published: 16 April 2024 * Issue Date: April 2024 * DOI:

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