Media type: E-Article Title: Harmonic fingerprint of unconventional superconductivity in twisted bilayer graphene Contributor: Wu, Xianxin; Hanke, Werner; Fink, Mario; Klett, Michael; Thomale, Ronny imprint: American Physical Society (APS), 2020 Published in: Physical Review B Language: English DOI: 10.1103/physrevb.101.134517 ISSN: 2469-9950; 2469-9969 Origination: Footnote: