<abstract xml:lang="en" xmlns="http://www.w3.org/1999/xhtml">The magnetic susceptibility shows a Hopkinson peak just below the Curie temperature <italic>TC</italic> when heating the selected hexagonal and spinel ferrite samples. It is proposed that this peak can be associated with a transition from stable magnetic state to super-paramagnetic relaxation above the blocking temperature up to the <italic>TC</italic>. The Hopkinson effect results are compared with SEM micrographs of both studied hexagonal and spinel ferrites.</abstract>

The magnetic susceptibility shows a Hopkinson peak just below the Curie temperature TC when heating the selected hexagonal and spinel ferrite samples. It is proposed that this peak can be associated with a transition from stable magnetic state to super-paramagnetic relaxation above the blocking temperature up to the TC. The Hopkinson effect results are compared with SEM micrographs of both studied hexagonal and spinel ferrites.

Hopkinson Effect Study in Spinel and Hexagonal Ferrites

Department of Electromagnetic Theory, Slovak University of Technology, Ilkovičova 3, 812 19 Bratislava, Slovakia

Department of Electrotechnology, Faculty of Electrical Engineering and Information Technology, Slovak University of Technology, Ilkovičova 3, 812 19 Bratislava, Slovakia

Facultad de Ingeniera, Universidad Autnoma de Baja California, México

Journal of Electrical Engineering

{"article-title":"Hopkinson Effect Study in Spinel and Hexagonal Ferrites"}

The magnetic susceptibility shows a Hopkinson peak just below the Curie temperature TC when heating the selected hexagonal and spinel ferrite samples. It is...

Hopkinson Effect Study in Spinel and Hexagonal Ferrites

Publié en ligne: 26 août 2011

Pages: 239 - 243

DOI: https://doi.org/10.2478/v10187-011-0038-7

Mots clés
Hopkinson effect, super-paramagnetic relaxation, blocking temperature, spinel and hexagonal ferrite

This content is open access.

Hopkinson Effect Study in Spinel and Hexagonal Ferrites

Publié en ligne: 26 août 2011

Pages: 239 - 243

DOI: https://doi.org/10.2478/v10187-011-0038-7

Mots clésHopkinson effect, super-paramagnetic relaxation, blocking temperature, spinel and hexagonal ferrite

This content is open access.

Mots clés
Hopkinson effect, super-paramagnetic relaxation, blocking temperature, spinel and hexagonal ferrite