| Autor: |
Klokkenburg, M., Erne, B.H., Wiedenmann, A., Petukhov, A.V., Philipse, A.P., Colloïden en grenslagen, Dep Scheikunde, Physical and Colloid Chemistry 1 |
| Jazyk: |
angličtina |
| Rok vydání: |
2007 |
| Zdroj: |
Physical Review. E, Statistical, nonlinear, and soft matter physics, 75, 051408. American Physical Society |
| ISSN: |
1539-3755 |
| Popis: |
Field-induced structure formation in a ferrofluid with well-defined magnetite nanoparticles with a permanent magnetic dipole moment was studied with small-angle neutron scattering (SANS) as a function of the magnetic interactions. The interactions were tuned by adjusting the size of the well-defined, single-magnetic-domain magnetite (Fe3O4) particles and by applying an external magnetic field. For decreasing particle dipole moments, the data show a progressive distortion of the hexagonal symmetry, resulting from the formation of magnetic sheets. The SANS data show qualitative agreement with recent cryogenic transmission electron microscopy results obtained in 2D [Klokkenburg et al., Phys. Rev. Lett. 97, 185702 (2006)] on the same ferrofluids. |
| Databáze: |
OpenAIRE |
| Externí odkaz: |
|
