✦ LIBER ✦

The influence of annealing on the magnetism of Fe-doped ZnO prepared by mechanical alloying

✍ Scribed by Fan Lin; Dongmei Jiang; Xueming Ma

Publisher: Elsevier Science
Year: 2010
Tongue: English
Weight: 563 KB
Volume: 405
Category: Article
ISSN: 0921-4526
DOI: 10.1016/j.physb.2009.12.010

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✦ Synopsis

The magnetic properties of Fe-doped ZnO prepared by mechanical alloying are reported before and after annealing in vacuum, air and hydrogen. The as-milled sample is magnetic with saturation magnetization M s E0.25m B /Fe. It is noteworthy that the magnetism and Curie temperature increased by heat treated in hydrogen. No secondary phase is detected in the as-milled and H 2 -annealed samples by the measurements of X-ray diffraction, X-ray photoelectron spectroscopy and M össbauer spectra, suggesting the ferromagnetism in these powders are intrinsic.

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