Dimensionally, morphologically, and thermally induced phase transformations in boron-nitrogen nanowires

被引:3
|
作者
Ivanovskaya, V. V. [1 ]
Zobelli, A.
Seifert, G.
Ivanovskii, A. L.
机构
[1] Russian Acad Sci, Ural Div, Inst Solid State Chem, Ekaterinburg 620041, Russia
[2] Univ Paris 11, CNRS, UMR 8502, Phys Solides Lab, F-91045 Orsay, France
[3] Tech Univ Dresden, Inst Physik Chim, D-01062 Dresden, Germany
基金
俄罗斯基础研究基金会;
关键词
D O I
10.1134/S0021364007120089
中图分类号
O4 [物理学];
学科分类号
0702 ;
摘要
Structural, thermal, electronic, and energetic properties of cubic boron nitride (BN) nanowires are studied using the density-functional tight-binding method. The effect of the total or partial rearrangement of the cubic structure of nanowires into the hexagonal one depending on the size, morphology, and thermal treatment of the starting wire has been revealed. As distinct from the known homogeneous carbon diamond-like nanowires, stable BN nanowires are two-phase systems whose "shell" has a hexagonal structure and "core" has a cubic structure. The changes in the electronic properties of BN nanowires induced by their structural transformations are discussed. It is shown that boron-nitrogen nanowires can exhibit both semiconducting and metallic properties.
引用
收藏
页码:626 / 631
页数:6
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