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4 papers · 1 filter
Auxetic tetrahex-carbon with ultrahigh strength and direct band gap
Qun Wei, Guang Yang, Xihong Peng
Tetrahex-carbon is a recently predicted two dimensional (2D) carbon allotrope which is composed of tetragonal and hexagonal rings. Unlike flat graphene, this new 2D carbon structur…
Valley-selective Klein tunneling through superlattice barrier in graphene
Xing-Tao An, Wang Yao
Graphene electrons feature a pair of massless Dirac cones of opposite pseudospin chirality at two valleys. Klein tunneling refers to the intriguing capability of these chiral elect…
Inorganic photovoltaic cells based on BiFeO3: spontaneous polarization, lattice matching, light polarization and their relationship to photovoltaic performance
Chao He, Guocai Liu, Huiyan Zhao +3
Inorganic ferroelectric perovskite oxides are more stable than hybrid perovskites. However, their solar energy harvest efficiency is not so good. Here, by constructing a series of…
Anisotropy engineering edge magnetism in zigzag honeycomb nanoribbons
Baoyue Li, Yifeng Cao, Lin Xu +4
It have been demonstrated that the zigzag honeycomb nanoribbons exhibit an intriguing edge magnetism. Here the effect of the anisotropy on the edge magnetism in zigzag honeycomb na…