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  1. B100 理学部/理学研究科
  2. B100a 雑誌掲載論文
  3. 学術雑誌

Excitation of vibrational soft modes in disordered systems using active oscillation

http://hdl.handle.net/2237/26577
56f5cce5-7278-40f0-8148-214eb99750cf
名前 / ファイル ライセンス アクション
oscillation_revise_final.pdf oscillation_revise_final.pdf ファイル公開:2018/01/07 (11.2 MB)
Item type 学術雑誌論文 / Journal Article(1)
公開日 2017-06-06
タイトル
タイトル Excitation of vibrational soft modes in disordered systems using active oscillation
著者 Tjhung, Elsen

× Tjhung, Elsen

WEKO 72167

Tjhung, Elsen

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Kawasaki, Takeshi

× Kawasaki, Takeshi

WEKO 72168

Kawasaki, Takeshi

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抄録
内容記述 We propose a new method to characterize the spatial distribution of particles' vibrations in solids with much lower computational costs compared to the usual normal mode analysis. We excite the specific vibrational mode in a two dimensional athermal jammed system by giving a small amplitude of active oscillation to each particle's size with an identical driving frequency. The response is then obtained as the real time displacements of the particles. We show remarkable correlations between the real time displacements and the eigen vectors obtained from conventional normal mode analysis. More importantly, from these real time displacements, we can measure the participation ratio and spatial polarization of particles' vibrations. From these measurements, we find three distinct frequency regimes which characterize the spatial distribution and correlation of particles' vibrations in jammed amorphous solids. Furthermore, we can possibly apply this method to a much larger system to examine the low frequency behaviour of amorphous solids with a much higher resolution of the frequency space.
内容記述タイプ Abstract
出版者
出版者 Royal Society of Chemistry
言語
言語 eng
資源タイプ
資源タイプresource http://purl.org/coar/resource_type/c_6501
タイプ journal article
ISSN
収録物識別子タイプ ISSN
収録物識別子 1744-683X
書誌情報 Soft Matter

巻 13, 号 1, p. 111-118, 発行日 2017-01-07
著者版フラグ
値 author
URI
識別子 http://doi.org/10.1039/C6SM00788K
識別子タイプ DOI
URI
識別子 http://hdl.handle.net/2237/26577
識別子タイプ HDL
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