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Underlying causes of the magnetic behavior in surface patterned NiFe2O4 thin films

Published online by Cambridge University Press:  13 September 2016

Goran Rasic ,
Branislav Vlahovic  and
Justin Schwartz
Goran Rasic*
Affiliation:
Department of Physics, North Carolina Central University, Durham, NC 27707, USA
Branislav Vlahovic
Affiliation:
Department of Physics, North Carolina Central University, Durham, NC 27707, USA
Justin Schwartz
Affiliation:
Department of Materials Science and Engineering, North Carolina State University, Raleigh, NC 27695-7907, USA
*
Address all correspondence to Goran Rasic at [email protected]
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Abstract

Surface patterned NiFe2O4 thin films exhibited large reduction in coercivity as compared with the films without surface patterning. Chemical analysis of the films revealed that there was no diffusion between the film and the substrate. Additional heating was shown to improve saturation magnetization without adverse effect on coercivity. The process of imprinting was eliminated as the possible cause of the phenomena as the flat stamp did not alter the magnetic properties of the film. Finally, it was shown that the orientation of the features with respect to the magnetic field does not have a significant effect on the magnetic response.

Type
Research Letters
Information
MRS Communications , Volume 6 , Issue 4 , December 2016 , pp. 397 - 401
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Copyright
Copyright © Materials Research Society 2016 

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