Please use this identifier to cite or link to this item: http://hdl.handle.net/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://hdl.handle.net/10995/101902
Access: info:eu-repo/semantics/openAccess
SCOPUS ID: 85057199117
PURE ID: 8320442
d69770ba-6d71-4d25-8743-e65772725434
ISSN: 24700045
DOI: 10.1103/PhysRevE.98.050602
Appears in Collections:Научные публикации, проиндексированные в SCOPUS и WoS CC

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