Table 4.

Hamaker coefficients of surfaces.

Surface	Hamaker Coefficient (A/10−20 J) $A_{H_{12}}$
Au–Au	40.00
Au–Ti	32.86
Au–Si	35.55
Ag–Au	44.72
Ag–Ti	36.74
Ag–Si	39.75
Si–Au	35.55
Si–Ti	29.12
Si–Si	31.60