Defect-induced room temperature ferromagnetism in B-doped ZnO
Yilmaz, S., Nisar, J., Atasoy, Y., McGlynn, Enda, Ahuja, R., Parlak, M. and Bacaksiz, E.
(2013)
Defect-induced room temperature ferromagnetism in B-doped ZnO.
Ceramics International, 39
(4).
pp. 4609-4617.
ISSN 0272-8842
ZnO microrods were grown on glass substrates by the spray pyrolysis method and boron was doped into the ZnO microrods by diffusion. X-ray diffraction results confirmed that the incorporation of B leads to a slight reduction in the deposit texture. Scanning electron microscopy measurements showed that the morphology of the ZnO samples changed from a microrod to nanocrystalline structure with B-doping. Photoluminescence data indicate that B-doping leads to a relative increase of the unstructured green band intensity. Magnetic measurements revealed that B-doped ZnO samples exhibited room temperature ferromagnetism related to defects, in agreement with first principles theoretical calculations.