Auger ratios of (left axis) and (right axis) measured as a function of Fe thickness. The solid circles and solid squares indicate the Fe/Si AES ratio of RT-grown Fe films and RT-Fe/5 ML LT-Fe films on Si(111), respectively. The open circles and open squares indicate the Si/Fe AES ratio of RT-Fe and RT-Fe/5 ML LT-Fe films on Si(111), respectively. The solid and dotted curves are the fitting results by Eqs. (1) and (2).
Auger ratios of Si/Fe measured as a function of annealing temperature. The circles, squares, and triangle indicate the series data of 5, 15, and 25 ML LT-grown Fe/Si(111) films. The solid curves are guides for the eye.
Surface morphology of (a) 24 and (b) 40 ML LT-grown Fe films, investigated by STM. The figures are all . The insets reveal the detailed surface structures. The line profiles indicated in the STM images are plotted at the bottom.
Longitudinal MOKE hysteresis loops measured at RT for ML of RT-grown Fe on an intermediate layer of 5 ML LT-Fe on Si(111).
Kerr saturation signal (: left-axis) and coercivity field (: right axis) plotted as function of Fe coverage. The data points were analyzed from the hysteresis loops of ML RT-Fe/5 ML LT-Fe/Si(111) in Fig. 4. The solid line and curve are the fitting results of and using a linear function and Eq. (6), respectively.
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