Table 1: Parameters needed for calculations of the surface tension of molten Si and Ge ( , density, and values were taken from [23], while , , and were determined as given in the text).

ParameterSiGe

(K)16871211
Density at m.p. (g/cm3)2.575.60
(kJ/mol)456377
(cm3/mol)10.9212.96
0.2970.297
7.538.44