285 290 295 300 0.7 0.75 0.8 0.85 0.9 GLYPH<CC> GLYPH<B4>GLYPH<C3>GLYPH<B5> GLYPH<BY> GLYPH<BP>GLYPH<BX> GLYPH<BC> GLYPH<BD> GLYPH<BE> 285 290 295 300 0.675 0.7 0.725 0.75 0.775 0.8 0.825 GLYPH<CC> GLYPH<B4>GLYPH<C3>GLYPH<B5> GLYPH<C8> GLYPH<BP>GLYPH<C8> GLYPH<BC> GLYPH<BD> GLYPH<BE> GLYPH<B4>GLYPH<CQ>GLYPH<B5> GLYPH<B4>GLYPH<CP>GLYPH<B5> FIG. 13: The relative Casimir free energy per unit area (a) and pressure (b) as functions of temperature in the configuration of two parallel Gd plates at the separation a = 0 . 5 µ m. The solid and dashed lines take into account and disregard the magnetic properties, respectively. The pairs of lines marked 1 and 2 indicate the respective computational results obtained using the Drude and plasma models. 43