Engineering high quality graphene superlattices via ion milled ultra-thin etching masks
David Barcons Ruiz, Hanan Herzig Sheinfux, Rebecca Hoffmann, Iacopo Torre, Hitesh Agarwal, Roshan Krishna Kumar, Lorenzo Vistoli, Takashi Taniguchi, Kenji Watanabe, Adrian Bachtold, Frank H. L. Koppens.
