Dipolar gels formed by aggregation of magnetized beads.

IF 2.4 3区 物理与天体物理 Q1 Mathematics Physical review. E Pub Date : 2024-11-01 DOI:10.1103/PhysRevE.110.054608
A Wafflard, E Opsomer, N Vandewalle
{"title":"Dipolar gels formed by aggregation of magnetized beads.","authors":"A Wafflard, E Opsomer, N Vandewalle","doi":"10.1103/PhysRevE.110.054608","DOIUrl":null,"url":null,"abstract":"<p><p>The out-of-equilibrium aggregation of dipolar particles, such as magnetized beads, leads to the formation of large structures composed of chains, loops, and eventually ribbons. In the present study, we focus on the evolution of these different substructures in a two-dimensional system confined within progressively shrinking environments. Using numerical simulations, we identify structural events as a function of the packing fraction. At low density, a percolation threshold ϕ_{p}≈0.15 is evidenced, where chainlike structures merge into a single large aggregate with significant voids. This gel-like structure then densifies as ϕ increases. At large ϕ values, crystallites of both square and hexagonal order phase appear, but they are far from extending over the whole system.</p>","PeriodicalId":20085,"journal":{"name":"Physical review. E","volume":"110 5-1","pages":"054608"},"PeriodicalIF":2.4000,"publicationDate":"2024-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Physical review. E","FirstCategoryId":"101","ListUrlMain":"https://doi.org/10.1103/PhysRevE.110.054608","RegionNum":3,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q1","JCRName":"Mathematics","Score":null,"Total":0}
引用次数: 0

Abstract

The out-of-equilibrium aggregation of dipolar particles, such as magnetized beads, leads to the formation of large structures composed of chains, loops, and eventually ribbons. In the present study, we focus on the evolution of these different substructures in a two-dimensional system confined within progressively shrinking environments. Using numerical simulations, we identify structural events as a function of the packing fraction. At low density, a percolation threshold ϕ_{p}≈0.15 is evidenced, where chainlike structures merge into a single large aggregate with significant voids. This gel-like structure then densifies as ϕ increases. At large ϕ values, crystallites of both square and hexagonal order phase appear, but they are far from extending over the whole system.

查看原文
分享 分享
微信好友 朋友圈 QQ好友 复制链接
本刊更多论文
由磁化珠聚集形成的偶极凝胶。
偶极粒子的非平衡聚集,如磁化珠,导致形成由链、环和最终带组成的大型结构。在目前的研究中,我们关注的是这些不同的子结构在一个二维系统中逐渐缩小的环境中的演变。通过数值模拟,我们确定了结构事件作为填料分数的函数。在低密度下,渗透阈值为ϕ_{p}≈0.15,其中链状结构合并成具有显著空隙的单个大聚集体。这种凝胶状结构随着ϕ的增加而致密化。在较大的ϕ值下,出现方形和六边形序相的晶体,但它们远没有延伸到整个系统。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
求助全文
约1分钟内获得全文 去求助
来源期刊
Physical review. E
Physical review. E 物理-物理:流体与等离子体
CiteScore
4.60
自引率
16.70%
发文量
0
审稿时长
3.3 months
期刊介绍: Physical Review E (PRE), broad and interdisciplinary in scope, focuses on collective phenomena of many-body systems, with statistical physics and nonlinear dynamics as the central themes of the journal. Physical Review E publishes recent developments in biological and soft matter physics including granular materials, colloids, complex fluids, liquid crystals, and polymers. The journal covers fluid dynamics and plasma physics and includes sections on computational and interdisciplinary physics, for example, complex networks.
期刊最新文献
Discrete element method model of soot aggregates. Dynamical phase transitions in the XY model: A Monte Carlo and mean-field-theory study. Dynamical system model of gentrification: Exploring a simple rent control strategy. Dynamical localization in nonideal kicked rotors driven by two competing pulsatile modulations. Solution of the space-fractional diffusion equation on bounded domains of superdiffusive phenomena.
×
引用
GB/T 7714-2015
复制
MLA
复制
APA
复制
导出至
BibTeX EndNote RefMan NoteFirst NoteExpress
×
×
提示
您的信息不完整,为了账户安全,请先补充。
现在去补充
×
提示
您因"违规操作"
具体请查看互助需知
我知道了
×
提示
现在去查看 取消
×
提示
确定
0
微信
客服QQ
Book学术公众号 扫码关注我们
反馈
×
意见反馈
请填写您的意见或建议
请填写您的手机或邮箱
已复制链接
已复制链接
快去分享给好友吧!
我知道了
×
扫码分享
扫码分享
Book学术官方微信
Book学术文献互助
Book学术文献互助群
群 号:481959085
Book学术
文献互助 智能选刊 最新文献 互助须知 联系我们:info@booksci.cn
Book学术提供免费学术资源搜索服务,方便国内外学者检索中英文文献。致力于提供最便捷和优质的服务体验。
Copyright © 2023 Book学术 All rights reserved.
ghs 京公网安备 11010802042870号 京ICP备2023020795号-1