--- res: bibo_abstract: - In monolayer graphene, the interplay of electronic correlations with the internal spin- and valley- degrees of freedom leads to a complex phase diagram of isospin symmetry breaking at high magnetic fields. Recently, Wei et al. (Science (2018)) demonstrated that spin waves can be electrically generated and detected in graphene heterojunctions, allowing direct experiment access to the spin degree of freedom. Here, we apply this technique to high quality graphite-gated graphene devices showing robust fractional quantum Hall phases and isospin phase transitions. We use an edgeless Corbino geometry to eliminate the contributions of edge states to the spin-wave mediated nonlocal voltage, allowing unambiguous identification of spin wave transport signatures. Our data reveal two phases within the ν = 1 plateau. For exactly ν=1, charge is localized but spin waves propagate freely while small carrier doping completely quenches the low-energy spin-wave transport, even as those charges remain localized. We identify this new phase as a spin textured electron solid. We also find that spin-wave transport is modulated by phase transitions in the valley order that preserve spin polarization, suggesting that this technique is sensitive to both spin and valley order.@eng bibo_authorlist: - foaf_Person: foaf_givenName: Haoxin foaf_name: Zhou, Haoxin foaf_surname: Zhou - 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: Takashi foaf_name: Tanaguchi, Takashi foaf_surname: Tanaguchi - foaf_Person: foaf_givenName: Kenji foaf_name: Watanabe, Kenji foaf_surname: Watanabe - foaf_Person: foaf_givenName: Andrea foaf_name: Young, Andrea foaf_surname: Young 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: Spin wave transport through electron solids and fractional quantum Hall liquids in graphene@ ...