“…Yi-Chao Zou 1,2 , Lucas Mogg 3,4,5 , Nick Clark 2,3 , Cihan Bacaksiz 6 , Slavisa Milanovic 6 , Vishnu Sreepal 3,7 , Guang-Ping Hao 3,4 , Yi-Chi Wang 2,8 , David G. Hopkinson 2,3 , Roman Gorbachev 3,4 , Samuel Shaw 9 , Kostya S. Novoselov 3,4 , Rahul Raveendran-Nair 3,7 , Francois M. Peeters 6 , Marcelo Lozada-Hidalgo 3,4 *, Sarah J. Haigh 2,3 * 1 Supplementary Figure S17|Imaging adsorbed surface ions in cross-sectional ADF-STEM images. a, Left panel, ADF-STEM image of a Cs-3L muscovite flake (graphite above and silica substrate below) with Cs + ions visible only at the interface between muscovite and Gr.…”