Long-lived isospin excitations in magic-angle twisted bilayer graphene

Nature, Published online: 28 August 2024; doi:10.1038/s41586-024-07880-5

A combination of exciton sensing and optical pump–probe spectroscopy is used to investigate the dynamics of isospin orders in MATBG with WSe2 substrate across the entire flat band, achieving sub-picosecond resolution.