Figure 3
Temperature dependences of the real 〈χ1〉(T) and imaginary 〈χ2〉(T) parts of the susceptibility of (NH4)2SO4 crystals during heating at E = 8.5 eV on a finer vertical scale than in Fig. 2. The insert shows the temperature dependences of the standard ellipsometric parameters tanΨ(T) and cosΔ(T). |