Remanence enhancement and exchange coupling in PrCo/Co films

Author

Liu, J.P. ; Liu, Y. ; Shan, Z.S. ; Sellmyer, D.J.

Author_Institution

Center for Mater. Res. & Anal., Nebraska Univ., Lincoln, NE, USA

Volume

33

Issue

5

fYear

1997

fDate

9/1/1997 12:00:00 AM

Firstpage

3709

Lastpage

3711

Abstract

PrCo/Co multilayer thin films have been prepared by sputtering. After heat treatment, high coercivity is developed and the remanence is enhanced for the insertion of the Co layers and the exchange coupling between the hard phase and the soft phase, which leads to high energy products of the composite magnets. The nanostructure of the films has been studied by TEM. It is found that the grain size of the films with high energy products is in the range from 10 to 25 nanometers

Keywords

cobalt; cobalt alloys; coercive force; exchange interactions (electron); ferromagnetic materials; magnetic multilayers; nanostructured materials; praseodymium alloys; remanence; soft magnetic materials; sputtered coatings; transmission electron microscopy; 10 to 25 nm; PrCo-Co; PrCo/Co films; composite magnets; exchange coupling; grain size; hard phase; remanence enhancement; soft phase; sputtering; Chromium; Coercive force; Couplings; Heat treatment; Magnetic films; Magnetic materials; Magnetic multilayers; Remanence; Saturation magnetization; Sputtering;

fLanguage

English

Journal_Title

Magnetics, IEEE Transactions on

Publisher

ieee

ISSN

0018-9464

Type

jour

DOI

10.1109/20.619546

Filename

619546