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Phase Transitions o...
Phase Transitions of Oppositely Charged Colloidal Particles Driven by Alternating Current Electric Field
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- Li, Bin (author)
- Lund University,Lunds universitet,Beräkningskemi,Enheten för fysikalisk och teoretisk kemi,Kemiska institutionen,Institutioner vid LTH,Lunds Tekniska Högskola,Computational Chemistry,Physical and theoretical chemistry,Department of Chemistry,Departments at LTH,Faculty of Engineering, LTH,Chinese Academy of Sciences,Sun Yat-sen University
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- Wang, Yong-Lei (author)
- Stockholm University,Stockholms universitet,Institutionen för material- och miljökemi (MMK)
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- Shi, Guang (author)
- University of Texas at Austin
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- Gao, Yangyang (author)
- Beijing University of Chemical Technology
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Shi, Xinghua (author)
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- Woodward, Clifford E. (author)
- University of New South Wales
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- Forsman, Jan (author)
- Lund University,Lunds universitet,Beräkningskemi,Enheten för fysikalisk och teoretisk kemi,Kemiska institutionen,Institutioner vid LTH,Lunds Tekniska Högskola,Computational Chemistry,Physical and theoretical chemistry,Department of Chemistry,Departments at LTH,Faculty of Engineering, LTH
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(creator_code:org_t)
- 2021-02-12
- 2021
- English.
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In: ACS Nano. - : American Chemical Society (ACS). - 1936-0851 .- 1936-086X. ; 15:2, s. 2363-2373
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Abstract
Subject headings
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- We study systems containing oppositely charged colloidal particles under applied alternating current electric fields (AC fields) using overdamped Langevin dynamics simulations in three dimensions. We obtain jammed bands perpendicular to the field direction under intermediate frequencies and lanes parallel with the field under low frequencies. These structures also depend upon the particle charges. The pathway for generating jammed bands follows a stepwise mechanism, and intermediate bands are observed during lane formation in some systems. We investigate the component of the pressure tensors in the direction parallel to the field and observe that the jammed to lane transition occurs at a critical value for this pressure. We also find that the stable steady states appear to satisfy the principle of maximum entropy production. Our results may help to improve the understand of the underlying mechanisms for these types of dynamic phase transitions and the subsequent cooperative assemblies of colloidal particles under such non-equilibrium conditions.
Subject headings
- NATURVETENSKAP -- Kemi (hsv//swe)
- NATURAL SCIENCES -- Chemical Sciences (hsv//eng)
Keyword
- colloidal particles
- phase transition
- alternating current electric field
- overdamped Langevin simulation
- non-equilibrium thermodynamics
- alternating current electric field
- colloidal particles
- non-equilibrium thermodynamics
- overdamped Langevin simulation
- phase transition
Publication and Content Type
- ref (subject category)
- art (subject category)
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