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Self-assembly of spherical colloidal particles with off-centered magnetic dipoles

Abrikossov, Alexei LU ; Sacanna, Stefano ; Philipse, Albert P. and Linse, Per LU (2013) In Soft Matter 9(37). p.8904-8913
Abstract
Fluids of spherical colloids possessing an off-centered embedded magnetic dipole were investigated by using Monte Carlo simulations. Systems of colloids with different strengths and directions of the embedded dipole moment confined in a 2D space without and with an external magnetic field applied were considered. The fluids were characterized by radial distribution functions, angular distribution functions, cluster data, and energetic data. In the absence of an external field, the colloids form dimers and trimers at sufficiently large magnetic moment without the tendency of forming chains of colloids as appearing in systems with particles possessing a central magnetic dipole. In the presence of an external field, chains of colloids aligned... (More)
Fluids of spherical colloids possessing an off-centered embedded magnetic dipole were investigated by using Monte Carlo simulations. Systems of colloids with different strengths and directions of the embedded dipole moment confined in a 2D space without and with an external magnetic field applied were considered. The fluids were characterized by radial distribution functions, angular distribution functions, cluster data, and energetic data. In the absence of an external field, the colloids form dimers and trimers at sufficiently large magnetic moment without the tendency of forming chains of colloids as appearing in systems with particles possessing a central magnetic dipole. In the presence of an external field, chains of colloids aligned in a zigzag fashion were formed for a field parallel to the plane of the particles, whereas the colloidal ordering was suppressed in the presence of a field perpendicular to that plane. The findings agree surprisingly well with the recent experimental observations on fluids containing spherical polymer colloids with embedded single-domain magnetic hematite cubes (S. Sacanna, L. Rossi, and D. J. Pine, J. Am. Chem. Soc., 2012, 134, 6112). (Less)
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organization
publishing date
type
Contribution to journal
publication status
published
subject
in
Soft Matter
volume
9
issue
37
pages
8904 - 8913
publisher
Royal Society of Chemistry
external identifiers
  • wos:000323844600014
  • scopus:84883366053
ISSN
1744-6848
DOI
10.1039/c3sm27128e
language
English
LU publication?
yes
id
0aec727e-1a81-425e-a74d-1d413c91c9a2 (old id 4062653)
date added to LUP
2016-04-01 13:41:13
date last changed
2020-06-24 02:42:43
@article{0aec727e-1a81-425e-a74d-1d413c91c9a2,
  abstract     = {Fluids of spherical colloids possessing an off-centered embedded magnetic dipole were investigated by using Monte Carlo simulations. Systems of colloids with different strengths and directions of the embedded dipole moment confined in a 2D space without and with an external magnetic field applied were considered. The fluids were characterized by radial distribution functions, angular distribution functions, cluster data, and energetic data. In the absence of an external field, the colloids form dimers and trimers at sufficiently large magnetic moment without the tendency of forming chains of colloids as appearing in systems with particles possessing a central magnetic dipole. In the presence of an external field, chains of colloids aligned in a zigzag fashion were formed for a field parallel to the plane of the particles, whereas the colloidal ordering was suppressed in the presence of a field perpendicular to that plane. The findings agree surprisingly well with the recent experimental observations on fluids containing spherical polymer colloids with embedded single-domain magnetic hematite cubes (S. Sacanna, L. Rossi, and D. J. Pine, J. Am. Chem. Soc., 2012, 134, 6112).},
  author       = {Abrikossov, Alexei and Sacanna, Stefano and Philipse, Albert P. and Linse, Per},
  issn         = {1744-6848},
  language     = {eng},
  number       = {37},
  pages        = {8904--8913},
  publisher    = {Royal Society of Chemistry},
  series       = {Soft Matter},
  title        = {Self-assembly of spherical colloidal particles with off-centered magnetic dipoles},
  url          = {http://dx.doi.org/10.1039/c3sm27128e},
  doi          = {10.1039/c3sm27128e},
  volume       = {9},
  year         = {2013},
}