Please use this identifier to cite or link to this item: http://hdl.handle.net/10497/16881
Title: 
Authors: 
Keywords: 
Spintronics
ZnO:Mn nanoparticle thin films
Structural defects
Substrate temperature
Issue Date: 
2014
Citation: 
Ilyas, U., Lee, P., Tan, T. L., Ramanujan, R. V., Zhang, S., Chen, R., ... & Rawat, R. S. (2014). High temperature ferromagnetic ordering in c-axis oriented ZnO: Mn nanoparticle thin films by tailoring substrate temperature. International Journal of Modern Physics: Conference Series, 32(2014), 1460341.
Abstract: 
This study reports the enhanced ferromagnetic ordering in ZnO:Mn nanoparticle thin films, grown
at different substrate temperatures using pulsed laser deposition. The optimum growth conditions
were deduced from X-ray, photoemission and magnetic measurements. The X-ray measurements
reveal that there was an optimum substrate temperature where the thin films showed relatively
stronger texture, better crystallinity and lower strain. Substrate temperature tuned the deep level
recombination centers in ZnO:Mn, which changed the optical quality by altering the electronic
structure. The M-H curves, in the present study, revealed superior ferromagnetic response of 20-
nm sized particles in ZnO:Mn thin film grown at a substrate temperature of 450 °C. Ferromagnetic
ordering becomes weaker at higher/lower substrate temperatures due to the activation of native
defects in ZnO host matrix.
URI: 
ISSN: 
2010-1945 (online)
Other Identifiers: 
10.1142/S201019451460341X
Website: 
Appears in Collections:Journal Articles

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