{"record":{"author":{"account_ref":null,"orcid":null},"builds_on":[],"content_schema":"pubphys.content.revision/1","content_sha256":"931d3a5c81e8da072ffa8c061686220d0eeafd55b17338424cb176ee47dd6cbf","created":"2026-10-03T07:18:00Z","files":[],"origin":{"assisted_by":[],"kind":"seed"},"parents":["5475cf5dc5b1a72283d26dc95dc6e00d7ea4e00096a7c6492e409a1816eeb011"],"salt":"7bd7623cbabe1ad22c108d69cdcf5763189f12afc99387430274ffa9b9dcc4ac","schema":"pubphys.record/2","site":"pubphys.com","target":null,"type":"revision"},"content":{"answer_type":"identification","assisted_by":[],"external_id":"cm.moire-tmd-hubbard.moire-spin-liquid","kind":"well-posed","literature_status":"open","n":"1","parents":[],"plain":"Computer studies of electrons on a triangular lattice predict that just on the insulating side of the metal-insulator transition the spins may form a spin liquid (no magnetic order even at zero temperature), and moire semiconductors could test this.","posed_since":"2020","precise":"DMRG studies of the half-filled triangular-lattice Hubbard model find a non-magnetic phase at intermediate $U/t$ between the metal and the 120-degree antiferromagnet, identified as a chiral spin liquid by Szasz et al. (PRX 10, 021042, 2020) and as a different spin liquid by Shirakawa et al. (2017). Determine whether a moire TMD Mott insulator tuned close to the Mott transition realizes such a phase: absence of magnetic order down to $T << J$ ($J$ the exchange scale), a spontaneous zero-field Kerr or Hall signal if time reversal is broken, and the nature of spin excitations. An answer is a measured magnetic phase diagram versus effective $U/t$; the ground state of the Hubbard model itself belongs to the correlated-electron slice.","problem_ref":null,"references":"","settled_by":"Magneto-optical measurements of spin susceptibility and spontaneous Kerr rotation versus displacement field near the Mott transition at temperatures well below the exchange scale.","status_note":"","title":"Spin liquid near the Mott transition in a moire triangular lattice","topic_ref":"c8c40cb151cde7a9b6935b4a394afff60af061353161a9f02c560677ef0488fa"},"attested":{"attestation":{"batch":null,"client_id":null,"id_token_sha256":null,"kind":"platform"},"record_hash":"567a4110c7c20445357876aedc4dfa30a9fd003b07118d0fd6b39e138ee0fa9f","schema":"pubphys.attested/1"},"envelope":{"attested_hash":"73318cb4306cc0f2a22959e288f642206a162495716693a2ecec803be72356e8","platform_signature":{"key_id":"c6afc19b31429869751f06879c75cd64ea92654423d15b44be775bf1310a60da","sig":"TODDVyBl_6AQc-l-vl3LRjRyFF0dAt4UsRZ0D0qhghnhm__LYM2YATKMvAzNQrbS6i3xxvb5_RvFzs7CufEwCA"},"schema":"pubphys.envelope/1"},"record_hash":"567a4110c7c20445357876aedc4dfa30a9fd003b07118d0fd6b39e138ee0fa9f","leaf_index":1102}