Wuwei Liang

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A rubber-like pseudoelastic behavior is discovered in single-crystalline face-centered-cubic (FCC) Cu nanowires in atomistic simulations. Nonexistent in bulk Cu, this phenomenon is associated primarily with a reversible crystallographic lattice reorientation driven by the high surface-stress-induced internal stresses due to high surface-to-volume ratios at(More)
Type I and Type II silicon clathrates (Si46 and Si136), which can be considered as analogs of carbon fullerene materials, are composed with face-sharing Si20, Si24, and Si28 cages linked through sp -covalent bonds. Besides silicon clathrates, theoretical computations have shown that both Type I carbon clathrate (C46) and Type II carbon clathrate (C136) may(More)
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