Nanoacademic builds simulation tools to predict the properties of next generation electronic devices. Our software is being used by researchers to reduce development costs in academic, public/private labs and industrial companies around the world.
THEORETICAL DESIGN OF TOPOLOGICAL HETERONANOTUBES
RESCU is used to simulate coaxial hetero-nanotubes (CNT inside BNT) and predict the existence of dissipationless conducting pathways protected by valley-topological invariance. The topological edge states follow a helical path, which hints that the nanotube may function as a nanoscale solenoid. C. Hu, V. Michaud-Rioux, W. Yao, and H. Guo, Nano Lett. 19, 4146 (2019)
DIRAC ELECTRONS IN MOIRÉ SUPERLATTICE: FROM TWO TO THREE DIMENSIONS
RESCU is used to elucidate the electronic structure of the graphene-boron nitride heterostructure (12000+ atoms). The flat-sheet system differs from the freestanding system. In the former, a so-called second-generation Dirac cone located at the boundary of the Moiré pattern Brillouin zone emerges, but not in the later. This is understood by looking at the real space representation of the wavefunctions around the Dirac cones. C. Hu, V. Michaud-Rioux, X. Kong, and H. Guo, Phys. Rev. Mater. 1, 61003 (2017).
MOIRÉ IMPURITIES IN TWISTED BILAYER BLACK PHOSPHORUS: EFFECTS ON THE CARRIER MOBILITY
RESCU predicts that carrier mobility in double-layer black phosphorus depends strongly on the relative angle between the monolayers (up to ~20-fold). The Moiré pattern formed by the sheets yields so-called Moiré impurities which bind electronic carrier states. P. Kang, W.T. Zhang, V. Michaud-Rioux, X.H. Kong, C. Hu, G.H. Yu, and H. Guo, Phys. Rev. B 96, (2017).
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