Enhanced ferromagnetic properties of diluted Fe doped ZnO with an Al co-doping

✍ Scribed by Ahn, Geun Young ;Park, Seung-Iel ;Kim, Chul Sung

• Publisher: John Wiley and Sons
• Year: 2007
• Tongue: English
• Weight: 276 KB
• Volume: 204
• Category: Article
• ISSN: 0031-8965
• DOI: 10.1002/pssa.200777368

✦ Synopsis

Abstract

Al‐added Zn~0.99‐x~Fe~x~Al~0.01~O (x = 0, 0.02, 0.05) powders were prepared with an annealing in an Ar atmosphere at 1200 °C. All the peaks from the X‐ray diffraction patterns of the samples belonged to the hexagonal (P6~3~mc) lattice of ZnO, and no indication of a secondary phase was found. The lattice parameters for the Zn~0.94~Fe~0.05~Al~0.01~O were a~0~ = 3.254 Å and c~0~ = 5.209 Å at room temperature. The hysteresis curve for the Zn~0.94~Fe~0.05~Al~0.01~O at room temperature revealed a ferromagnetic phase. The temperature dependency of the magnetization curve was measured from 60 to 350 K and revealed that the Curie temperature was above room temperature. In this study we demonstrated an enhanced ferromagnetic behavior due to an electric property change with an Al co‐doping effect. (© 2008 WILEY‐VCH Verlag GmbH & Co. KGaA, Weinheim)