| Journal: | Revista mexicana de física |
| Database: | PERIÓDICA |
| System number: | 000460757 |
| ISSN: | 0035-001X |
| Authors: | Peredo Ortíz, R1 Hernández Contreras, M2 |
| Institutions: | 1Universidad Autónoma de San Luís Potosí, Instituto de Física, San Luis Potosí. México 2Instituto Politécnico Nacional, Centro de Investigación y de Estudios Avanzados, Ciudad de México. México |
| Year: | 2022 |
| Season: | May-Jun |
| Volumen: | 68 |
| Number: | 3 |
| Country: | México |
| Language: | Inglés |
| Document type: | Artículo |
| Approach: | Analítico, teórico |
| English abstract | Linear response methods allow studying magnetic susceptibility relaxation in isotropic colloidal magnetic fluids. We show a relationship between the susceptibility of macroscopic magnetization at thermal equilibrium and the diffusion constant of a tracer particle. The comparison of the predicted frequency-dependent susceptibility with computer simulations shows their agreement. Besides, at a low concentration of particles, it has the expected Debye behavior. However, the initial susceptibility yields only the qualitative trends of the existing experiments at a low volume fraction of particles and its temperature dependence |
| Disciplines: | Física y astronomía |
| Keyword: | Física, Susceptibilidad magnética, Ferrofluidos, Nanopartículas, Respuesta lineal |
| Keyword: | Physics, Magnetic susceptibility, Ferrofluids, Nanoparticles, Linear response |
| Full text: | Texto completo (Ver HTML) Texto completo (Ver PDF) |
