Figure 1

Background subtracted Ar $2p$ core-level spectra (open circles) normalized to the same height and the fitted curve (thin solid line), as a function of $E_i$ for 1 ML. The deconvoluted DS line shape (short dashes) and the spectral line shape including the Gaussian broadening but excluding the instrumental broadening (long dashes) are shown below each spectrum. The residual for the fit (for 0.3 keV spectrum) is within the experimental scatter. The inset shows the calculated projected range ($d$) as a function of $E_i$ (open circles) and fitted curve (solid line); bars show the straggle.Reuse & Permissions

Figure 2

$\Delta E_B$ variation as functions of $E_i$ and $F$. In the gray scale (rainbow for color), the darkest (violet) contour: 2.3 eV; the lightest (yellow) contour: 1.4 eV.Reuse & Permissions

Figure 3

$\Delta E_B$ as a function of $E_i$ for different fluences with fitted curve (solid line) and $90\%$ prediction bands (dashed lines). Residuals are shown at the top of the graph.Reuse & Permissions

Figure 4

$\alpha$ variation as functions of $E_i$ and $F$. In the gray scale (rainbow for color), the darkest (violet) contour: 0.074; the lightest (yellow) contour: 0.01.Reuse & Permissions