--- res: bibo_abstract: - Bilayer graphene with ~ 1.1 degrees twist mismatch between the layers hosts a low energy flat band in which the Coulomb interaction is large relative to the bandwidth, promoting correlated insulating states at half band filling, and superconducting (SC) phases with dome-like structure neighboring correlated insulating states. Here we show measurements of a dual-graphite-gated twisted bilayer graphene device, which minimizes charge inhomogeneity. We observe new correlated phases, including for the first time a SC pocket near half-filling of the electron-doped band and resistive states at quarter-filling of both bands that emerge in a magnetic field. Changing the layer polarization with vertical electric field reveals an unexpected competition between SC and correlated insulator phases, which we interpret to result from differences in disorder of each graphene layer and underscores the spatial inhomogeneity like twist angle as a significant source of disorder in these devices [1].@eng bibo_authorlist: - foaf_Person: foaf_givenName: Shaowen foaf_name: Chen, Shaowen foaf_surname: Chen - foaf_Person: foaf_givenName: Matthew foaf_name: Yankowitz, Matthew foaf_surname: Yankowitz - foaf_Person: foaf_givenName: Hryhoriy foaf_name: Polshyn, Hryhoriy foaf_surname: Polshyn foaf_workInfoHomepage: http://www.librecat.org/personId=edfc7cb1-526e-11ec-b05a-e6ecc27e4e48 orcid: 0000-0001-8223-8896 - foaf_Person: foaf_givenName: Kenji foaf_name: Watanabe, Kenji foaf_surname: Watanabe - foaf_Person: foaf_givenName: Takashi foaf_name: Taniguchi, Takashi foaf_surname: Taniguchi - foaf_Person: foaf_givenName: David E. foaf_name: Graf, David E. foaf_surname: Graf - foaf_Person: foaf_givenName: Andrea foaf_name: Young, Andrea foaf_surname: Young - foaf_Person: foaf_givenName: Cory R. foaf_name: Dean, Cory R. foaf_surname: Dean bibo_issue: '2' bibo_volume: 64 dct_date: 2019^xs_gYear dct_isPartOf: - http://id.crossref.org/issn/0003-0503 dct_language: eng dct_publisher: American Physical Society@ dct_title: Correlated insulating and superconducting phases in twisted bilayer graphene@ ...