{"record":{"author":{"account_ref":null,"orcid":null},"builds_on":[],"content_schema":"pubphys.content.revision/1","content_sha256":"3775f3c6135a3d5e20eb14f8bee2864f3b8a821d93934518f6b72ca7ef974eaa","created":"2026-10-03T07:18:01Z","files":[],"origin":{"assisted_by":[],"kind":"seed"},"parents":["53a5a16bf95de270ef07a8dec06d7765c4c62474854759438f7af841108ae502","5475cf5dc5b1a72283d26dc95dc6e00d7ea4e00096a7c6492e409a1816eeb011"],"salt":"40bd612a2d671dc5023dfe8ef396f4708a94e1c4dbe03c96fd05bdc02774c11f","schema":"pubphys.record/2","site":"pubphys.com","target":null,"type":"revision"},"content":{"answer_type":"yes-no","assisted_by":[],"external_id":"cm.sr2ruo4.two-component","kind":"well-posed","literature_status":"contested","n":"1","parents":[{"note":"","parent_revision":"53a5a16bf95de270ef07a8dec06d7765c4c62474854759438f7af841108ae502","relation":"special_case"}],"plain":"If the order parameter has two parts, squeezing the crystal along one axis should split the superconducting transition into two; one probe sees a split and another does not.","posed_since":"","precise":"Determine whether uniaxial stress along $[100]$ splits $T_c$ of Sr2RuO4 into two thermodynamic transitions, as a two-component order parameter (multidimensional representation or accidental degeneracy) requires. An answer is a thermodynamic detection of the second transition, or a bound on its specific-heat jump below the value predicted by models fitted to the ultrasound data.","problem_ref":null,"references":"","settled_by":"Calorimetry or elastocaloric measurements under stress with sensitivity below the predicted second-jump size, on the same samples used for muSR.","status_note":"muSR under stress (2021) reported split onsets of superconductivity and time-reversal breaking, while heat capacity under stress found no second transition above a few percent of the main anomaly.","title":"Is the Sr2RuO4 order parameter two-component","topic_ref":"4f61e38da4787d938d64771ba627f52a028683729b3f0c7ab15eb99d384306be"},"attested":{"attestation":{"batch":null,"client_id":null,"id_token_sha256":null,"kind":"platform"},"record_hash":"f2f2aae13ece43527ab233e3180386512a2150ccffaedb8b9b05a70a9b945064","schema":"pubphys.attested/1"},"envelope":{"attested_hash":"cd91c525fbc7fde4ea77f579ede2be32a3ee7190abd556dfe5d8d073fcdc1163","platform_signature":{"key_id":"c6afc19b31429869751f06879c75cd64ea92654423d15b44be775bf1310a60da","sig":"2M3JdHd28MAbdg8MK6sMhUTC_HJadSFxmAIZ7xV0pkjrnR665R8JLKWxBDq60un93aog_Q11NpZJhWZJv2txCQ"},"schema":"pubphys.envelope/1"},"record_hash":"f2f2aae13ece43527ab233e3180386512a2150ccffaedb8b9b05a70a9b945064","leaf_index":1177}