Table 1.

The calculated electron–phonon coupling constants (λ), the logarithmic average phonon frequency (ω_log) and the T_c with μ* = 0.13.

Phases	Pressure (GPa)	λ	ω log	T c (μ* = 0.13)
Cmcm	100	0.59	889	13 K
C2/m	200	1.39	700	67 K