期刊
APPLIED PHYSICS A-MATERIALS SCIENCE & PROCESSING
卷 114, 期 2, 页码 453-457出版社
SPRINGER HEIDELBERG
DOI: 10.1007/s00339-013-7664-9
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资金
- DST under the Indo-Russian project [INTRFBR/P-72]
- National Research Council of Science & Technology (NST), Republic of Korea [2V02900] Funding Source: Korea Institute of Science & Technology Information (KISTI), National Science & Technology Information Service (NTIS)
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 similar to 2x10(-4) emu/g to 3x10(-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.
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