The aim of our studies was to investigate the magnetic nanostructure and the morphology of the Fe-Ti layers using the Magnetic Force Microscopy (MFM) and Scanning Electron Microscopy (SEM) techniques, respectively.
The Fe-Ti layers were produced by the impulse plasma method (IPD) in two impulse plasma coaxial accelerators, each equipped with an internal electrode made of Fe or Ti, which functioned as the source of the alloying components of the layer material. The substrates were made of Si, and the plasma-generating gas was hydrogen. The successive portions of Fe and Ti were deposited independently at separated time intervals, according to the schedule that specified the number and proportion of the impulses generated by each accelerator.
Characteristically, the layer growth mechanism in the IPD method consists of the uncompleted coalescence of the clusters formed in the plasma itself and delivered onto the cold surface of the substrate. During the impulse plasma deposition the plasma is generated in the form of discrete packs with a life-time of about 100µs. In spite of pulse character of mass and energy supplying to the substrate, based on our previous investigation we assume that during the IPD growth of the layers, short-distance diffusion takes place between the separated iron and titanium clusters.
The surface morphology is very similar to the magnetic contrast in the layers. It is interesting that the magnetic domain size in the magnetic contrast is related to the characteristic size in the surface morphology. We suppose that the light and dark contrast in magnetic structure corresponds to Fe or bcc-Fe(Ti) as ferromagnetic phases and Ti or inter-metallic phases as paramagnetic, respectively.

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1. STAGES OF THE LAYER GROWTH DURING THE IMPULSE PLASMA DEPOSITION METHOD.
2. Surface condensation of material during IPD