Generation of Nonequilibrium Nuclei of Magnetization in a Rapidly Increasing Magnetic Field in Pt/Co/Ir/Co/Pt Synthetic Ferrimagnets

In a Pt/Co/Ir/Co/Pt synthetic ferrimagnet with perpendicular magnetic anisotropy, a stochastically appearing magnetization peak was found in the field dependence of the magnetic moment at a high sweep rate of the magnetic field of 16 kOe/s and T = 300 K. The peak appears near coinciding switching fi...

Full description

Saved in:
Bibliographic Details
Published in:Physics of the solid state 2020-11, Vol.62 (11), p.2070-2076
Main Authors: Morgunov, R. B., Bezverkhnii, A. I.
Format: Article
Language:English
Subjects:
Activation energy
Anisotropy
Cobalt
Ferrimagnetism
Ferrimagnets
Ferromagnetism
Iridium
Magnetic anisotropy
Magnetic domains
Magnetic fields
Magnetic moments
Magnetism
Magnetization
Nucleation
Physics
Physics and Astronomy
Platinum
Solid State Physics
Citations: Items that this one cites
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:In a Pt/Co/Ir/Co/Pt synthetic ferrimagnet with perpendicular magnetic anisotropy, a stochastically appearing magnetization peak was found in the field dependence of the magnetic moment at a high sweep rate of the magnetic field of 16 kOe/s and T = 300 K. The peak appears near coinciding switching fields between three equilibrium states of magnetization. The peak is caused by the nucleation of nonequilibrium magnetic domains near structural defects of the cobalt film, where the activation energy of magnetic nucleation decreases.
ISSN:1063-7834
1090-6460
DOI:10.1134/S1063783420110219