Anisotropic mean-square displacements in two-dimensional colloidal crystals of tilted dipoles
| Type of Publication: | Journal article |
| URI (citable link): | http://nbn-resolving.de/urn:nbn:de:bsz:352-171041 |
| Author: | Froltsov, Vladimir; Likos, Christos N.; Löwen, Hartmut; Eisenmann, Christoph; Gasser, Urs; Keim, Peter; Maret, Georg |
| Year of publication: | 2005 |
| Published in: | Physical Review E ; 71 (2005), 3. - ISSN 1539-3755 |
| DOI (citable link): | https://dx.doi.org/10.1103/PhysRevE.71.031404 |
| Summary: |
Superparamagnetic colloidal particles confined to a flat horizontal air-water interface in an external magnetic field, which is tilted relative to the interface, form anisotropic two-dimensional crystals resulting from their mutual dipole-dipole interactions. Using real-space experiments and harmonic lattice theory we explore the mean-square displacements of the particles in the directions parallel and perpendicular to the in-plane component of the external magnetic field as a function of the tilt angle. We find that the anisotropy of the mean-square displacement behaves nonmonotonically as a function of the tilt angle and does not correlate with the structural anisotropy of the crystal.
|
| PACS Classification: | 82.70.Dd, 61.50.−f, 64.70.Dv |
| Subject (DDC): | 530 Physics |
| Keywords: | Colloids, Structure of bulk crystals |
| Link to License: | In Copyright |
| Bibliography of Konstanz: | Yes |
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FROLTSOV, Vladimir, Christos N. LIKOS, Hartmut LÖWEN, Christoph EISENMANN, Urs GASSER, Peter KEIM, Georg MARET, 2005. Anisotropic mean-square displacements in two-dimensional colloidal crystals of tilted dipoles. In: Physical Review E. 71(3). ISSN 1539-3755. Available under: doi: 10.1103/PhysRevE.71.031404
@article{Froltsov2005Aniso-17104, title={Anisotropic mean-square displacements in two-dimensional colloidal crystals of tilted dipoles}, year={2005}, doi={10.1103/PhysRevE.71.031404}, number={3}, volume={71}, issn={1539-3755}, journal={Physical Review E}, author={Froltsov, Vladimir and Likos, Christos N. and Löwen, Hartmut and Eisenmann, Christoph and Gasser, Urs and Keim, Peter and Maret, Georg} }
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