{"schema":"pubphys.bundle/1","record":{"author":{"account_ref":null,"orcid":null},"builds_on":[],"content_schema":"pubphys.content.revision/1","content_sha256":"461afb4194a0ed0f4cbd9d1127a8fea03f543a290f2375b0f227afe1b6fe4ffc","created":"2026-10-15T23:43:22Z","files":[],"origin":{"assisted_by":[],"kind":"seed"},"parents":["ce59fb6cd812fc05906d0c60a71c75ea22bc686bcf38e7c3ef7010834d98ee7b","d146d8be4c04adaf4a58a612a3ded5630d9b6bc0d1d38bf6288de976288a5f6e"],"salt":"f39bc953a813d9ff438e440afe23391a85dd09ed7be82f489ffa51f85f851b5d","schema":"pubphys.record/2","site":"pubphys.com","target":null,"type":"revision"},"content":{"answer_type":"classification","assisted_by":[],"external_id":"cm.disordered-frustrated-magnets.h3liir2o6-ground-state","kind":"phenomenon","literature_status":"contested","n":"2","parents":[],"plain":"$\\mathrm{H_3LiIr_2O_6}$ is a honeycomb iridium oxide that shows no magnetic order down to the lowest temperatures measured. The hydrogen atoms between its layers are disordered, and it is unclear whether its state is a Kitaev spin liquid altered by random couplings or a collection of random spin pairs unrelated to Kitaev physics.","posed_since":"2018","precise":"In $\\mathrm{H_3LiIr_2O_6}$ (no magnetic order detected down to tens of mK, $C/T$ diverging at low $T$ with $H/T$ scaling), determine whether the low-energy density of states and the scaling of $C/T$ arise from random Majorana hopping and fluxes bound to vacancies in a Kitaev spin liquid (Knolle, Moessner, Perkins, PRL 2019), or from random singlets of local moments without Kitaev fractionalization. An answer identifies the ground state with measured and calculated low-energy density of states agreeing within errors.","problem_ref":"d146d8be4c04adaf4a58a612a3ded5630d9b6bc0d1d38bf6288de976288a5f6e","references":"","settled_by":"Thermal conductivity, NMR and neutron spectroscopy on samples with controlled hydrogen or deuterium stacking disorder, compared with Kitaev-model simulations that include the measured bond disorder.","status_note":"Kitagawa et al. (Nature 2018) reported the absence of order; Knolle et al. (PRL 2019) and Kimchi et al. (Nature Communications 2018) gave competing disorder-based explanations of the low-energy states.","title":"Is $\\mathrm{H_3LiIr_2O_6}$ a bond-disordered Kitaev spin 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