Please use this identifier to cite or link to this item: https://doi.org/10.1016/j.jmmm.2006.01.118
Title: Exchange coupling in CoO-Co bilayer
Authors: Yi, J.B. 
Ding, J. 
Keywords: Co/CoO bilayer
Exchange coupling
Ordering
Spin-glass
Issue Date: Aug-2006
Citation: Yi, J.B., Ding, J. (2006-08). Exchange coupling in CoO-Co bilayer. Journal of Magnetism and Magnetic Materials 303 (2 SPEC. ISS.) : e160-e164. ScholarBank@NUS Repository. https://doi.org/10.1016/j.jmmm.2006.01.118
Abstract: In this work, exchange bias and coercivity enhancement in ferromagnet (FM)-antiferromagnet (AFM) bilayer have been investigated. CoO film (50 nm) was deposited by sputtering with a relatively high oxygen partial pressure. The deposited films were subsequently annealed at varied temperature up to 973 K in the air atmosphere. The CoO film shows a disordered structure in the as-deposited state and an increase of crystallinity after annealing characterized by XRD and Raman spectra. A 40-nm Co film was deposited on the as-deposited CoO and annealed films. The Co-CoO bilayer shows a large exchange bias up to 1600 Oe and relatively high coercivity up to 3200 Oe (HC-) at 5 K, which is much larger than that of crystalline Co-CoO bilayer films without any treatment. The spin glass behavior combined with increasing crystallinity, surface roughness of CoO after annealing may be attributed to the large exchange bias and high coercivity. © 2006 Elsevier B.V. All rights reserved.
Source Title: Journal of Magnetism and Magnetic Materials
URI: http://scholarbank.nus.edu.sg/handle/10635/85170
ISSN: 03048853
DOI: 10.1016/j.jmmm.2006.01.118
Appears in Collections:Staff Publications

Show full item record
Files in This Item:
There are no files associated with this item.

SCOPUSTM   
Citations

16
checked on Oct 15, 2018

WEB OF SCIENCETM
Citations

10
checked on Oct 8, 2018

Page view(s)

15
checked on Oct 19, 2018

Google ScholarTM

Check

Altmetric


Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.