Issue 29, 2019

The loss of mechanical stability and the critical magnetization of a ferromagnetic particle in an elastomer

Abstract

The rotation of a spherical magnetically soft ferromagnetic particle with uniaxial magnetic anisotropy and located in an elastomer through a certain angle under the action of a magnetic field has been studied theoretically. It was found that if the particle loses its mechanical stability, its rotation angle becomes critically dependent on the magnetic field magnitude. The magnetically induced critical rotation of the particle in the elastomer has a magneto-elastic origin and is accompanied by a critical change in the magnetization of the particle multidomain state, as occurs in the case of second-order magnetic phase transitions. The transition of a particle in a soft-elastic elastomer from the multidomain state into a uniformly magnetized one was shown to be independent of the magnitude of the particle magnetic anisotropy field. The particle rotation was found to result in the appearance of a maximum in the field dependence of the magnetic susceptibility.

Graphical abstract: The loss of mechanical stability and the critical magnetization of a ferromagnetic particle in an elastomer

Article information

Article type
Paper
Submitted
11 Apr 2019
Accepted
02 Jul 2019
First published
03 Jul 2019

Soft Matter, 2019,15, 5987-5994

The loss of mechanical stability and the critical magnetization of a ferromagnetic particle in an elastomer

V. M. Kalita, Yu. I. Dzhezherya and G. G. Levchenko, Soft Matter, 2019, 15, 5987 DOI: 10.1039/C9SM00735K

To request permission to reproduce material from this article, please go to the Copyright Clearance Center request page.

If you are an author contributing to an RSC publication, you do not need to request permission provided correct acknowledgement is given.

If you are the author of this article, you do not need to request permission to reproduce figures and diagrams provided correct acknowledgement is given. If you want to reproduce the whole article in a third-party publication (excluding your thesis/dissertation for which permission is not required) please go to the Copyright Clearance Center request page.

Read more about how to correctly acknowledge RSC content.

Social activity

Spotlight

Advertisements