Reference : Ribbons of superparamagnetic colloids in magnetic field
Scientific journals : Article
Physical, chemical, mathematical & earth Sciences : Physics
http://hdl.handle.net/2268/211094
Ribbons of superparamagnetic colloids in magnetic field
English
Darras, Alexis mailto [Université de Liège > Département de physique > Physique expér. de la matière molle et des syst. complexes >]
Fiscina, Jorge [Saarland University > Experimental Physics > Christian Wagner AG > >]
Pakpour, Maryam [Université de Liège - ULiège > Physique > GRASP > Post-doc >]
Vandewalle, Nicolas mailto [Université de Liège > Département de physique > Physique statistique >]
Lumay, Geoffroy mailto [Université de Liège > Département de physique > Physique expér. de la matière molle et des syst. complexes >]
27-Apr-2016
European Journal of Physics
Institute of Physics
39
47
Yes (verified by ORBi)
International
0143-0807
[en] colloids ; magnetism ; self-assembly
[en] While the aggregation process of superparamagnetic colloids in strong magnetic field is well
known on short time since a few decades, recent theoretical works predicted an equilibrium state reached after a long time. In the present paper, we present experimental observations of this equilibrium state with a two-dimensional system and we compare our data with the predictions of a pre-existing model. Above a critical aggregation size, a deviation between the model and the experimental data is observed. This deviation is explained by the formation of ribbon-shaped aggregates. The ribbons are formed due to lateral aggregation of chains. An estimation of the magnetic energy for chains and ribbons shows that ribbons are stable structures when the number of magnetic grains is higher than N = 30.
Group for Research and Applications in Statistical Physics-GRASP
Fonds de la Recherche Scientifique (Communauté française de Belgique) - F.R.S.-FNRS ; Université de Liège
Researchers ; Professionals
http://hdl.handle.net/2268/211094
10.1140/epje/i2016-16047-0
https://link.springer.com/article/10.1140/epje/i2016-16047-0
The final publication is available at Springer via http://dx.doi.org/10.1140/epje/i2016-16047-0

File(s) associated to this reference

Fulltext file(s):

FileCommentaryVersionSizeAccess
Open access
RibbonsColl.pdf"The final publication is available at Springer via http://dx.doi.org/10.1140/epje/i2016-16047-0Publisher postprint2.29 MBView/Open

Bookmark and Share SFX Query

All documents in ORBi are protected by a user license.