Synthesis of borophenes: Anisotropic, two-dimensional boron polymorphs

Andrew J. Mannix, Xiang Feng Zhou, Brian Kiraly, Joshua D. Wood, Diego Alducin, Benjamin D. Myers, Xiaolong Liu, Brandon L. Fisher, Ulises Santiago, Jeffrey R. Guest, Miguel Jose Yacaman, Arturo Ponce, Artem R. Oganov, Mark C. Hersam, Nathan P. Guisinger