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    Strain engineering of antimonene by a first-principles study : mechanical and electronic properties by Kripalani, Devesh Raju, Kistanov, Andrey A., Cai, Yongqing, Xue, Ming, Zhou, Kun

    Published 2020
    “…We find that the nature of the band gap remains insensitive to strain in the zigzag direction, while strain in the armchair direction activates an indirect-direct band gap transition at a critical strain of 4%, owing to a band switching mechanism. The curvature of the conduction band minimum increases during the transition, which suggests a lighter effective mass of electrons in the direct-gap configuration than in the free-standing state of equilibrium. …”
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    Journal Article
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