Magnetic and Optical Properties in Degenerated Transition Metal and Ga Co-substituted ZnO Nanocrystals

Journal of Alloys and Compounds 2019
Anzelms Zukuls, Raivis Eglītis, Tanel Kaambre, Mati Kook, Vambola Kisand, Mikhail Maiorov, Reinis Ignatāns, Roberto Felix Duarte, Martin Järvekülg, Andris Šutka

In order to study the influence of itinerant electrons on magnetic properties of transition metal substituted ZnO nanocrystals, nanopowders containing different amounts of Ga and fixed amounts of Fe, Ni and Mn ions were synthesized. The ions of different transition metals and Ga were successfully introduced into the ZnO structure using solvothermal synthesis method. X-ray diffraction, scanning electron microscopy, hard X-ray photoelectron spectroscopy and Rietveld refinement were used to characterize the synthesized nanocrystals. Optical measurements revealed that Ga substitution can change the light transmittance/absorption in the infrared part of the electromagnetic light spectrum due to itinerant electrons in the nanocrystals, as well as influence the magnetic properties of the obtained nanocrystals.

Keywords
Diluted magnetic semiconductors, Nanoparticles, Solvothermal synthesis, Substituted ZnO
DOI
10.1016/j.jallcom.2019.07.197
Hyperlink
https://www.sciencedirect.com/science/article/pii/S0925838819327094?via%3Dihub

Zukuls, A., Eglītis, R., Kaambre, T., Kook, M., Kisand, V., Maiorov, M., Ignatāns, R., Duarte, R., Järvekülg, M., Šutka, A. Magnetic and Optical Properties in Degenerated Transition Metal and Ga Co-substituted ZnO Nanocrystals. Journal of Alloys and Compounds, 2019, Vol. 805, pp.1191-1199. ISSN 0925-8388. Available from: doi:10.1016/j.jallcom.2019.07.197

Publication language
English (en)