Small scale magnets are in high demand due to applications in miniature electronic devices and small scale magnetic storage devices. Industry is always demanding sub-micron or even Nano-meter scale magnets. Magnetic thin films often contain several layers of coating of magnetic material. We prepared thin film magnets containing iron and nickel using spin coating and sol-gel method. The thickness of the films was controlled by the spin rate. Precursor films on the substrate were then annealed to either 200 to 350 Celcius for up to 2 hours in air. Structure of iron and nickel under various experimental conditions will be examined by X-ray Absorption Near Edge Structure (XANES) and Extended X-ray Absorption Fine Structure (EXAFS). These tools were used to determine structural parameters such as charge state, near neighbor bond length, and number of near neighbor atoms. The results of both iron and nickel will be presented.

Chemical environment of iron and nickel atoms in thin film magnets

256th National Meeting (2018)

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