Magnetic clusters in Co ion-implanted GaN

The structural and optical properties of Co ion-implanted GaN were investigated by various measurements. HRXRD, TEM, and SADP results did not show any peaks associated with second phase formation. XPS depth measurements showed the metallic Co 2p core levels for 700– 900 ∘ C annealed-samples. From XP...

Full description

Saved in:
Bibliographic Details
Published in:Journal of magnetism and magnetic materials 2007-03, Vol.310 (2), p.e729-e731
Main Authors: Kim, Woochul, Jae Kang, Hee, Kyu Noh, Sam, Song, Jonghan, Kim, Chul Sung
Format: Article
Language:English
Subjects:
Ion implantation
Magnetic semiconductor
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:The structural and optical properties of Co ion-implanted GaN were investigated by various measurements. HRXRD, TEM, and SADP results did not show any peaks associated with second phase formation. XPS depth measurements showed the metallic Co 2p core levels for 700– 900 ∘ C annealed-samples. From XPS results, it could be explained that magnetic property of our films originated from Co or CoGa magnetic clusters. The PL spectra obtained at 10 K display a clear intensity modulation, indicating that the optical interference effect occurs in the layers.
ISSN:0304-8853
DOI:10.1016/j.jmmm.2006.11.034