| People | Locations | Statistics |
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| Naji, M. |
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| Motta, Antonella |
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| Aletan, Dirar |
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| Mohamed, Tarek |
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| Ertürk, Emre |
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| Taccardi, Nicola |
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| Kononenko, Denys |
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| Petrov, R. H. | Madrid |
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| Alshaaer, Mazen | Brussels |
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| Bih, L. |
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| Casati, R. |
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| Muller, Hermance |
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| Kočí, Jan | Prague |
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| Šuljagić, Marija |
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| Kalteremidou, Kalliopi-Artemi | Brussels |
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| Azam, Siraj |
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| Ospanova, Alyiya |
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| Blanpain, Bart |
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| Ali, M. A. |
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| Popa, V. |
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| Rančić, M. |
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| Ollier, Nadège |
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| Azevedo, Nuno Monteiro |
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| Landes, Michael |
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| Rignanese, Gian-Marco |
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Wagner, Joachim
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (4/4 displayed)
- 2018Hindered nematic alignment of hematite spindles in poly( N-isopropylacrylamide) hydrogels: a small-angle X-ray scattering and rheology studycitations
- 2017A new class of copolymer colloids with tunable, low refractive index for investigations of structure and dynamics in concentrated suspensionscitations
- 2011Small-angle scattering from spindle-shaped colloidal hematite particles in external magnetic fieldscitations
- 2009Template-based fluoroethylenepropylene piezoelectrets with tubular channels for transducer applicationscitations
Places of action
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article
Small-angle scattering from spindle-shaped colloidal hematite particles in external magnetic fields
Abstract
<jats:p>In the presence of phosphate anions, spindle-shaped mesoscale hematite particles can be prepared<jats:italic>via</jats:italic>controlled precipitation of iron(III) chloride. The aspect ratio of the particles is determined by the concentration of phosphate anions selectively covering specific crystal surfaces and thus enabling anisotropic growth of the particles. The scattering function for suspensions of polydisperse spindles is derived and used to analyse the small-angle scattering resulting from these particles. In the presence of an external magnetic field, the particles align perpendicular to the field direction as a result of the negative anisotropy of their magnetic susceptibility . Hereby, an isotropic–nematic phase transition can be induced in external magnetic fields.</jats:p>