Search of Nonlinear Energy Localized Structure in BCC Crystals

• DOI Yusuke

  Division of Mechanical Engineering, Graduate School of Engineering, Osaka University

• KOMIYA Takuya

  Department of Adaptive Machine Systems, Graduate School of Engineering, Osaka University

• NAGASHIMA So

  Division of Mechanical Engineering, Graduate School of Engineering, Osaka University

• NAKATANI Akihiro

  Division of Mechanical Engineering, Graduate School of Engineering, Osaka University

Bibliographic Information

Other Title

• 体心立方結晶における非線形エネルギー局在振動の探索
• カラダ シンリッポウ ケッショウ ニ オケル ヒセンケイ エネルギーキョクザイシンドウ ノ タンサク

Abstract

Spatially localized vibration modes in bcc model crystals are investigated numerically. Spatially discreteness of crystal and nonlinearity of atomic interaction support the existence of these localized modes. We construct a hybrid computation method of the molecular dynamics simulation and the iteration method for finding periodic orbit in the phase space. Using the constructed method, we find two types of stationary localized modes in the bcc model crystal: bond-center modes and site-center modes. Frequency of these mode is out of the dispersion band. Structure of these modes in 3D crystal is investigated in detail.

Journal

• Journal of the Society of Materials Science, Japan

  Journal of the Society of Materials Science, Japan 70 (4), 330-335, 2021-04-15

  The Society of Materials Science, Japan

Keywords

• Molecular dynamics simulation, Metal crystal, Atom vibration, Nonlinear Vibration, Intrinsic localized mode, Energy localization

Details

• CRID: 1390569225889952384
• NII Article ID: 130008027598
• NII Book ID: AN00096175
• DOI: 10.2472/jsms.70.330
• ISSN: 18807488
• ISSN: 05145163
• NDL BIB ID: 031441789
• Web Site: https://ndlsearch.ndl.go.jp/books/R000000004-I031441789
• Web Site: https://www.jstage.jst.go.jp/article/jsms/70/4/70_330/_pdf
• Text Lang: ja
• Data Source:
  • JaLC
  • NDL
  • Crossref
  • CiNii Articles
  • KAKEN
• Abstract License Flag: Disallowed