Beschreibung:
<jats:p>We report on visualization of a phase separation in <jats:styled-content style="fixed-case">Ag</jats:styled-content><jats:sub><jats:italic>x</jats:italic></jats:sub>(<jats:styled-content style="fixed-case">As<jats:sub>0.33</jats:sub>S<jats:sub>0.67</jats:sub></jats:styled-content>)<jats:sub>100−<jats:italic>x</jats:italic></jats:sub> and <jats:styled-content style="fixed-case">Ag</jats:styled-content><jats:sub><jats:italic>x</jats:italic></jats:sub>(<jats:styled-content style="fixed-case">As<jats:sub>0.33</jats:sub>S<jats:sub>0.335</jats:sub>Se<jats:sub>0.335</jats:sub></jats:styled-content>)<jats:sub>100−<jats:italic>x</jats:italic></jats:sub> chalcogenide glasses by means of atomic force microscopy (<jats:styled-content style="fixed-case">AFM</jats:styled-content>). Sufficient topographical contrast (~20 nm) was achieved by selective polishing of a phase‐separated sample (<jats:styled-content style="fixed-case">Ag</jats:styled-content>‐poor, <jats:styled-content style="fixed-case">Ag</jats:styled-content>‐rich regions) and phase separation occurred within 0.5–20 at.% Ag and 2–18 at.% <jats:styled-content style="fixed-case">Ag</jats:styled-content> in <jats:styled-content style="fixed-case">Ag</jats:styled-content><jats:sub><jats:italic>x</jats:italic></jats:sub>(<jats:styled-content style="fixed-case">As<jats:sub>0.33</jats:sub>S<jats:sub>0.67</jats:sub></jats:styled-content>)<jats:sub>100−<jats:italic>x</jats:italic></jats:sub> and <jats:styled-content style="fixed-case">Ag</jats:styled-content><jats:sub><jats:italic>x</jats:italic></jats:sub>(<jats:styled-content style="fixed-case">As<jats:sub>0.33</jats:sub>S<jats:sub>0.335</jats:sub>Se<jats:sub>0.335</jats:sub></jats:styled-content>)<jats:sub>100−<jats:italic>x</jats:italic></jats:sub> systems, respectively. Homogenous regions were observed below and above the phase separation lower and upper limits. Direct comparison of scanning electron microscopy and atomic force microscopy sensitivity of phase separation detection is shown. In addition, concentration of silver in particular phases of <jats:styled-content style="fixed-case">AgAsS</jats:styled-content> system was evaluated by <jats:styled-content style="fixed-case">NanoSIMS</jats:styled-content> (secondary ion mass spectroscopy) and very similar concentration of silver was detected in the phases at boundaries of immiscibility region.</jats:p>