FIG. 5: The relative Casimir free energy per unit area (a) and pressure (b) as functions of separation in the configuration of one plate made of Co and the other plate made of Au. Computations are performed using the Drude model at T = 300 K. 1 2 3 4 5 6 0.5 1 1.5 2 2.5 3 GLYPH<CP> GLYPH<B4> GLYPH<AM> GLYPH<D1> GLYPH<B5> GLYPH<BY> GLYPH<BP>GLYPH<BX> GLYPH<BC> 1 2 3 4 5 6 0.25 0.5 0.75 1 1.25 1.5 1.75 2 GLYPH<CP> GLYPH<B4> GLYPH<AM> GLYPH<D1> GLYPH<B5> GLYPH<C8> GLYPH<BP>GLYPH<C8> GLYPH<BC> GLYPH<B4>GLYPH<CQ>GLYPH<B5> GLYPH<B4>GLYPH<CP>GLYPH<B5> 35