{"record":{"author":{"account_ref":null,"orcid":null},"builds_on":[],"content_schema":"pubphys.content.revision/1","content_sha256":"0d408bf32ebb5bd2f67648150399fbb9166ff9b7dc1a6dd6356f30bd018784d9","created":"2026-10-15T23:43:22Z","files":[],"origin":{"assisted_by":[],"kind":"seed"},"parents":["ce59fb6cd812fc05906d0c60a71c75ea22bc686bcf38e7c3ef7010834d98ee7b","e6f28f9d8837a8468aca8b699e82afbfabb564fc042095dd6db20118d887639b"],"salt":"4136310e512238fb1a7495448aa8e938923d6d6b2986b94b2d3a19d69cd7686f","schema":"pubphys.record/2","site":"pubphys.com","target":null,"type":"revision"},"content":{"answer_type":"mechanism","assisted_by":[],"external_id":"cm.kagome-metals.cdw-mechanism","kind":"phenomenon","literature_status":"contested","n":"2","parents":[],"plain":"The charge order could arise from electrons near special points of the band structure interacting with each other, or from coupling to lattice vibrations that soften.","posed_since":"2021","precise":"Determine whether the charge-density wave of AV3Sb5 is driven by electronic instabilities of the van Hove singularities at M (nesting and interactions) or by momentum-dependent electron-phonon coupling with a soft breathing phonon. An answer is inelastic x-ray measurements of phonon softening plus momentum-resolved electron-phonon coupling compared with the electronic susceptibility.","problem_ref":"e6f28f9d8837a8468aca8b699e82afbfabb564fc042095dd6db20118d887639b","references":"","settled_by":"Inelastic x-ray scattering of the phonon dispersion versus temperature combined with first-principles electron-phonon and electronic susceptibility calculations.","status_note":"","title":"Is the kagome charge-density wave electronic or phonon driven?","topic_ref":null},"attested":{"attestation":{"batch":null,"client_id":null,"id_token_sha256":null,"kind":"platform"},"record_hash":"06c037fe70dee5f8c3001b7ccb04a276dd6a1e566bbe8f8b505af150407d9824","schema":"pubphys.attested/1"},"envelope":{"attested_hash":"691b506734ddf368a2c6c4fd1b737deb3dfcc5a37cd7d62d5e22c9e95191eee3","platform_signature":{"key_id":"c6afc19b31429869751f06879c75cd64ea92654423d15b44be775bf1310a60da","sig":"U_EmXXkblfiLNtWy8cErIHnnT7zKVeHVEW6NYrMXaeqXd9O_9xwWk0_bYIjGiaBI85snJchvCRjTkJXUw4G5Ag"},"schema":"pubphys.envelope/1"},"record_hash":"06c037fe70dee5f8c3001b7ccb04a276dd6a1e566bbe8f8b505af150407d9824","leaf_index":2886}