Role of ionic surfactant in magnetic dynamics of self-assembled dispersions of nanoplatelets
- Author(s)
- Hajnalka Nádasi, Melvin Küster, Alenka Mertelj, Nerea Sebastián, Patricija Hribar Boštjančič, Darja Lisjak, Thilo Viereck, Margaret Rosenberg, Alexey O. Ivanov, Sofia S. Kantorovich, Alexey Eremin, Frank Ludwig
- Abstract
In complex colloidal systems, interparticle interactions strongly affect the dynamics of the constituting particles. A study of the dynamical response also provides invaluable information on the character of those interactions. Here we demonstrate how tuning the electrostatic interactions by an ionic surfactant in dispersions of magnetic nanoplatelets leads to developing new dynamic modes in magnetic response spectra. The collective modes can be induced or suppressed by either varying the concentration ratio of the magnetic nanoplatelets (MP) to the surfactant or increasing the MP concentration reflecting the nanoscale characteristics of this fluid magnet.
- Organisation(s)
- Computational and Soft Matter Physics, Research Platform MMM Mathematics-Magnetism-Materials
- External organisation(s)
- Otto-von-Guericke-Universität Magdeburg, Technische Universität Carolo-Wilhelmina zu Braunschweig, Jožef Stefan Institute (IJS), Ural Federal University, Russian Academy of Sciences
- Journal
- Journal of Molecular Liquids
- Volume
- 382
- No. of pages
- 9
- ISSN
- 0167-7322
- DOI
- https://doi.org/10.1016/j.molliq.2023.121900
- Publication date
- 07-2023
- Peer reviewed
- Yes
- Austrian Fields of Science 2012
- 103017 Magnetism, 103043 Computational physics, 103015 Condensed matter
- Keywords
- ASJC Scopus subject areas
- Electronic, Optical and Magnetic Materials, Atomic and Molecular Physics, and Optics, Condensed Matter Physics, Spectroscopy, Physical and Theoretical Chemistry, Materials Chemistry
- Portal url
- https://ucris.univie.ac.at/portal/en/publications/role-of-ionic-surfactant-in-magnetic-dynamics-of-selfassembled-dispersions-of-nanoplatelets(793fcd7a-acad-46be-9fa5-46a47e98a269).html