Journal
JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS
Volume 305, Issue 2, Pages 377-380Publisher
ELSEVIER
DOI: 10.1016/j.jmmm.2006.01.108
Keywords
diluted magnetic semiconductor; Mn-doped ZnO; absorption spectroscopy; electron paramagnetic resonance
Ask authors/readers for more resources
Zn1-xMnxO crystallites were synthesized by hydrothermal method. X-ray diffraction, UV-Vis absorption spectroscopy, and electron paramagnetic resonance (EPR) spectra confirm the substitution of Zn site by Mn2+ ion. The nonmonotonic variation of band gap exhibits that the short-ranged interactions between the d electrons of Mn and the s and p electrons of the host bands are dominated at lower Mn concentration (x). EPR spectra show that Mn2+ is in exchange interaction at higher x. By using a Curie-Weiss equation on the EPR data, it is found that the dominant magnetic property is antiferromagnetic for higher x, and paramagnetic for lower x. (C) 2006 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