Optical conductivity study of screening of many-body effects in graphene interfacesPranjal Kumar Gogoi, Iman Santoso, Surajit Saha, Sihao Wang, Antonio H. Castro Neto, Kian Ping Loh, T. Venkatesan and Andrivo RusydiEPL, 99 6 (2012) 67009DOI: https://doi.org/10.1209/0295-5075/99/67009