Temperature Dependence of the Tilt Angle for the Smectic A-Smectic C^∗ Transition in a Mixture of C7-70PDOB Ferroelectric Liquid Crystals near the Tricritical Point

Table 2

Values of the parameters given in the equations indicated for the AC* transition in a mixture of 70PDOB+C7 near the tricritical point (𝑋=16.92).

𝜒0	𝑇0; (°C)	𝑎; (J/m^3 K deg^2)	𝑏; (J/m^3 deg^4)	𝑐; (J/m^3 deg^6)	𝐶; (J/m^3 C deg)	𝐷; (J·m/C^2 deg^2)	𝑒; (Jm^5/C^4)	Equation
4.59	44.668	1642.41 ± 1.30	15.41 ± 0.01	−5.32 × 10^−5; ± 4.78 × 10^−8	—	2.546 ± 0.001	3.557 ± 0.002	(4)
4.59	44.668	1.77 × 10^17; ± 1.7 × 10^14	8.31 × 10^14; ± 4.6 × 10^12	3.18 × 10^12; ± 1.13 × 10^11	6.83 × 10^13; ± 2.6 × 10^7	4.05 × 10^6; ± 1.4 × 10^5	—	(9)