Journal
PHYSICA B-CONDENSED MATTER
Volume 398, Issue 2, Pages 179-183Publisher
ELSEVIER SCIENCE BV
DOI: 10.1016/j.physb.2007.04.015
Keywords
diluted magnetic semiconductors titanium dioxide; Ab initio calculations
Categories
Ask authors/readers for more resources
We present ail ab initio study of pure and doped TiO2 in the rutile and anatase phases. The main purpose of this work is to determine the role played by different defects and different crystal structures in the appearance of magnetic order. The calculations were performed for varying impurity and vacancy concentrations in both TiO2 structures. For Co impurities the local magnetic moment remained almost independent of the concentration and distribution while for Cu this is not the case, there is magnetism for low concentrations that disappears for the higher ones. Impurity-impurity interactions in both structures favor linear ordering of them. Magnetism in undoped samples appears for certain vacancy concentrations and structural strain. (c) 2007 Elsevier B.V. All rights reserved.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available