NSTI Nanotech 2009

Nickel ferrite Nanomaterials by Pulsed laser ablation in Water; Structural, Optical and Magnetic Characterizations

R. Gopal, S.C. Singh, R.K. Swarnkar
Allahabad University, IN

Keywords: pulsed laser ablation, magnetic nanoparticles, ferrite nanoparticles, colloidal solution of nanoparticles

Abstract:

Nickel ferrite nanoparticles are synthesized by pulsed laser ablation of corresponding bulk target in the double distilled water. Focused output of fundamental and third harmonics from pulsed Nd:YAG laser operating at 40 and 25 mJ/pulse energy respectively was allowed to irradiate the target. Produced colloidal solution was red in color and stable for several days. UV-visible absorption, XRD, FTIR, VSM techniques are used for the characterization of synthesized Nanomaterials. Materials synthesized with 1064 nm laser ablation have high degree of magnetization a s compared to that synthesized by 355 nm laser ablation
 
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