A double-layer borophene - a boron analogue of the double-layer graphene - has been synthesized, expanding the phase space and potential applications of two-dimensional boron.
M. J. Rost; L. Crama; P. Schakel; E. van Tol; G. B. E. M. van Velzen-Williams; C. F. Overgauw; H. ter Horst; H. Dekker; B. Okhuijsen; M. Seynen; A. Vijftigschild; P. Han; A. J. Katan; K. Schoots; R. Schumm; W. van Loo; T. H. Oosterkamp; J. W. M. Frenken