Journal of the Korean Vacuum Society (한국진공학회지)

The Korean Vacuum Society (한국진공학회)
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A study on structural properties of copper nanowires

구리 나노와이어의 구조적 특성에 관한 연구

  • 강정원 (중앙대학교 전자공학과) ;
  • 권오근 (세명대학교 인터넷정보학부) ;
  • 황호정 (중앙대학교 전자공학과)
  • Published : 2002.04.01
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Abstract

The structures and properties of Cu nanowires have been investigated using molecular dynamics simulations. Cylindrical multi-shell Cu nanowires maintain their structures at room temperature and their structural properties are different from the structural properties of nanowires with face-centered-cubic structure. The results from nanopillar and tensile testing of cylindrical multi-shell Cu nanowire showed structures related to pentagonal needle-like crystal structures. Since the subunits of pentagonal nanowire with needle-like crystal are face-centered-cubic structure, pentagonal multi-shell nanowires are stable one-dimensional structures in nanostructured materials.

본 연구에서는 분자동력학 시뮬레이션을 이용하여 구리 나노와이어의 구조적 특성에 관하여 연구하였다. 매우 가는 구리 나노와이어의 구조는 면심입방격자 구조와는 다른 원통형 다중 껍질 구조를 가지며 상온에서 안정한 구조를 유지하였다. 원통형 다중껍질 나노기둥 및 나노와이어 확장 변형에 따른 장력의 변화에 관한 연구에서 오각형 NLC(needle-like crystal) 구조가 관찰되었다. 오각형 NLC 나노와이어 구조의 특성은 기본구성단위가 면심입방격자 구조이므로 안정된 구조라는 것을 연구하였다.

Keywords

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