Possibility of room-temperature multiferroism in Mg-doped ZnO

Title
Possibility of room-temperature multiferroism in Mg-doped ZnO
Authors
Parmod KumarYogesh KumarHitendra K. MalikS. Annapoorni가우탐채근화K. Asokan
Keywords
multiferroism; Mg-doped ZnO; X-ray absorption spectroscopy; ferroelectricity
Issue Date
2014-02
Publisher
Applied physics. A, Materials science & processing
Citation
VOL 114, NO 2, 453-457
Abstract
Room-temperature multiferroic properties in Mg-doped ZnO samples are reported wherein Mg replaces Zn in the ZnO matrix and retains hexagonal wurtzite structure. The saturation magnetisation is increased from ∼2×10−4 emu/g to 3×10−4 emu/g for the dilute doping of 2 % Mg in pure ZnO and the ferroelectricity is also increased. Higher concentration of Mg does not lead to a significant enhancement in the magnetisation but improves the ferroelectric properties. An X-ray absorption spectroscopic study shows an enhancement in O vacancies with dilute doping of Mg. The origin of the multiferroic behaviour is understood based on their crystal and electronic structures.
URI
http://pubs.kist.re.kr/handle/201004/48156
ISSN
09478396
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KIST Publication > Article
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