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

• Published in: Physica status solidi. A, Applications and materials science Vol. 204; no. 12; pp. 4037 - 4040
• Main Authors: Ahn, Geun Young, Park, Seung-Iel, Kim, Chul Sung
• Format: Journal Article Conference Proceeding
• Language: English
• Published: Berlin WILEY-VCH Verlag 01.12.2007; WILEY‐VCH Verlag; Wiley-VCH
• Subjects: 61.10.Nz; 61.43.Gt; 72.20.Jv; 75.50.Pp; Condensed matter: electronic structure, electrical, magnetic, and optical properties; Domain effects, magnetization curves, and hysteresis; Domain walls and domain structure; Exact sciences and technology; Magnetic properties and materials; Magnetic semiconductors; Physics; Studies of specific magnetic materials; Annealing; Curie point; Magnetization; Ferromagnetic materials; Magnetic hysteresis; XRD; Lattice parameters; Semimagnetic semiconductors; Hexagonal lattices; Temperature effects; Aluminium additions; Zinc oxide; Ferromagnetism; Iron additions; Codoping
• ISSN: 1862-6300; 1862-6319
• DOI: 10.1002/pssa.200777368

Al‐added Zn0.99‐xFexAl0.01O (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 (P63mc) lattice of ZnO, and no indication of a secondary phase was found. The lattice parameters for the Zn0.94Fe0.05Al0.01O were a0 = 3.254 Å and c0 = 5.209 Å at room temperature. The hysteresis curve for the Zn0.94Fe0.05Al0.01O 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)