Sub-Nanometer Curvature Unlocks Quantum Orbital Flexoelectricity in Graphene. PubMed 1970-01-01 added 2026-07-25 Iyengar SA, McHugh JG, Salvage JP, Vajtai R, Gadhamshetty V, Dalton AB, Tripathi M, Ajayan PM, Meunier V Open original source ↗ astronomy physics