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http://elar.urfu.ru/handle/10995/101902
Title: | Theory of the dynamic magnetic susceptibility of ferrofluids |
Authors: | Ivanov, A. O. Camp, P. J. |
Issue Date: | 2018 |
Publisher: | American Physical Society |
Citation: | Ivanov A. O. Theory of the dynamic magnetic susceptibility of ferrofluids / A. O. Ivanov, P. J. Camp. — DOI 10.1103/PhysRevE.98.050602 // Physical Review E. — 2018. — Vol. 98. — Iss. 5. — 050602. |
Abstract: | The dynamic magnetic response of a ferrofluid to a weak ac magnetic field is studied using statistical mechanical theory and Brownian dynamics simulations, taking account of dipole-dipole interactions between the constituent ferromagnetic colloidal particles, and the presence of a range of particle sizes. The effects of interactions and polydispersity on the frequency dispersion are shown to be substantial: the amplitude of the response can be about twice that of a noninteracting system; the frequency for peak power loss can be reduced by about one half; and polydispersity effects can even change the qualitative appearance of the susceptibility spectrum. © 2018 American Physical Society. |
Keywords: | MAGNETIC FLUIDS MAGNETIC SUSCEPTIBILITY AC MAGNETIC FIELDS BROWNIAN DYNAMICS SIMULATIONS DIPOLE DIPOLE INTERACTIONS DYNAMIC MAGNETIC SUSCEPTIBILITY FREQUENCY DISPERSION NON-INTERACTING SYSTEM POLYDISPERSITY EFFECT STATISTICAL MECHANICAL THEORY MAGNETISM |
URI: | http://elar.urfu.ru/handle/10995/101902 |
Access: | info:eu-repo/semantics/openAccess |
RSCI ID: | 38627374 |
SCOPUS ID: | 85057199117 |
PURE ID: | 8320442 d69770ba-6d71-4d25-8743-e65772725434 |
ISSN: | 24700045 |
DOI: | 10.1103/PhysRevE.98.050602 |
Appears in Collections: | Научные публикации ученых УрФУ, проиндексированные в SCOPUS и WoS CC |
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