Zn vacancy induced room-temperature ferromagnetism in Mn-doped ZnO
- 6 August 2007
- journal article
- research article
- Published by AIP Publishing in Applied Physics Letters
- Vol. 91 (6), 062113
- https://doi.org/10.1063/1.2769391
Abstract
X-ray absorption fine structure (XAFS) and first-principles calculations were employed to study the structure and ferromagnetism origin of thin film grown by metal organic chemical vapor deposition. The magnetization measurements indicate that this sample is ferromagnetic at room temperature. The Mn ions are located at the substitutional Zn sites as revealed by the Mn -edge XAFS spectroscopy. Moreover, the O -edge XAFS analysis indicated the existence of numerous Zn vacancies. Based on first-principles calculations, the authors propose that the Zn vacancy can induce the room-temperature ferromagnetism in Mn-doped ZnO.
Keywords
This publication has 24 references indexed in Scilit:
- Direct observation of structure effect on ferromagnetism innanowiresPhysical Review B, 2006
- Effect of oxygen annealing on Mn doped ZnO diluted magnetic semiconductorsApplied Physics Letters, 2006
- Evidence of oxygen vacancy enhanced room-temperature ferromagnetism in Co-doped ZnOApplied Physics Letters, 2006
- Defect‐Induced Ferromagnetism in Co‐doped ZnOAdvanced Materials, 2006
- Ferromagnetism of ZnO and GaN: A ReviewJournal of Materials Science: Materials in Electronics, 2005
- Ferromagnetism above room temperature in bulk and transparent thin films of Mn-doped ZnONature Materials, 2003
- Ferromagnetic properties of Zn1−xMnxO epitaxial thin filmsApplied Physics Letters, 2002
- Structural, optical and magnetic properties of diluted magnetic semiconducting Zn1−xMnxO filmsSolid State Communications, 2002
- Magnetic properties of Mn-doped ZnOApplied Physics Letters, 2001
- Zener Model Description of Ferromagnetism in Zinc-Blende Magnetic SemiconductorsScience, 2000