{"database":"biostudies-literature","file_versions":[],"scores":null,"additional":{"submitter":["Kwan YH"],"funding":["Swiss National Science Foundation"],"pagination":["52"],"full_dataset_link":["https://www.ebi.ac.uk/biostudies/studies/S-EPMC12893902"],"repository":["biostudies-literature"],"omics_type":["Unknown"],"volume":["9(1)"],"pubmed_abstract":["The experimental discovery of fractional Chern insulators (FCIs) in moiré materials raises the question of whether their time-reversal invariant analogs, fractional topological insulators (FTIs), can also be realized in these platforms. We address this via exact diagonalization calculations in both a Landau level (LL) model and continuum model for twisted MoTe<sub>2</sub>, and extract principles for engineering FTIs in realistic conditions. For the spinful LL model at filling ν=13+13 , we show that a suppression of the short-range component of the interaction is important to stabilize the FTI. For twisted MoTe<sub>2</sub> at ν=-43 , we find that a short-range attraction <i>g</i> on top of the screened Coulomb interaction is needed to realize an FTI. We discuss how this threshold value of <"],"journal":["Communications physics"],"pubmed_title":["Regarding the existence of abelian fractional topological insulators in twisted MoTe&lt;sub&gt;2&lt;/sub&gt; and related systems."],"pmcid":["PMC12893902"],"funding_grant_id":["213805"],"pubmed_authors":["Dagnino AK","Jiang Y","Regnault N","Bernevig BA","Neupert T","Wagner G","Kwan YH","Yu J","Xu X"],"additional_accession":[]},"is_claimable":false,"name":"Regarding the existence of abelian fractional topological insulators in twisted MoTe&lt;sub&gt;2&lt;/sub&gt; and related systems.","description":"The experimental discovery of fractional Chern insulators (FCIs) in moiré materials raises the question of whether their time-reversal invariant analogs, fractional topological insulators (FTIs), can also be realized in these platforms. We address this via exact diagonalization calculations in both a Landau level (LL) model and continuum model for twisted MoTe<sub>2</sub>, and extract principles for engineering FTIs in realistic conditions. For the spinful LL model at filling ν=13+13 , we show that a suppression of the short-range component of the interaction is important to stabilize the FTI. For twisted MoTe<sub>2</sub> at ν=-43 , we find that a short-range attraction <i>g</i> on top of the screened Coulomb interaction is needed to realize an FTI. We discuss how this threshold value of <","dates":{"release":"2026-01-01T00:00:00Z","publication":"2026","modification":"2026-07-15T22:01:42.186Z","creation":"2026-07-09T13:09:14.01Z"},"accession":"S-EPMC12893902","cross_references":{"pubmed":["41695642"],"doi":["10.1038/s42005-025-02483-6"]}}