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Erschienen in: Rare Metals 3/2013

01.06.2013

Room temperature ferromagnetism of boron-doped ZnO nanoparticles prepared by solvothermal method

verfasst von: M. Hassan Farooq, Xiao-Guang Xu, Hai-Ling Yang, Cong-Jun Ran, Jun Miao, M. Zubair Iqbal, Yong Jiang

Erschienen in: Rare Metals | Ausgabe 3/2013

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Abstract

In this study, B-doped ZnO nanoparticles were synthesized by template-free solvothermal method. X-ray diffraction analysis reveals that B-doped ZnO nanoparticles have hexagonal wurtzite structure. Field emission scanning electron microscopy observations show that the nanoparticles have a diameter of 50 nm. The room temperature ferromagnetism increases monotonically with increasing B concentration to the ZnO nanoparticles and reaches the maximum value of saturation magnetization 0.0178 A·m2·kg−1 for 5 % B-doped ZnO nanoparticles. Moreover, photoluminescence spectra reveal that B doping causes to produce Zn vacancies (VZn). Magnetic moment of oxygen atoms nearest to the B-VZn vacancy pairs can be considered as a source of ferromagnetism for B-doped ZnO nanoparticles.

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Metadaten
Titel
Room temperature ferromagnetism of boron-doped ZnO nanoparticles prepared by solvothermal method
verfasst von
M. Hassan Farooq
Xiao-Guang Xu
Hai-Ling Yang
Cong-Jun Ran
Jun Miao
M. Zubair Iqbal
Yong Jiang
Publikationsdatum
01.06.2013
Verlag
Nonferrous Metals Society of China
Erschienen in
Rare Metals / Ausgabe 3/2013
Print ISSN: 1001-0521
Elektronische ISSN: 1867-7185
DOI
https://doi.org/10.1007/s12598-013-0058-5

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