Table 1 Pressure dependent second order elastic moduli and wave speeds.

From: Supersonic Dislocation Bursts in Silicon

σz(GPa)

P (GPa)

C 11 (GPa)

C 12 (GPa)

C 44 (GPa)

ρ (g/cm3)

(km/s)

U L < 100> (km/s)

U L < 110> (km/s)

0.0

0.0

151.4

76.4

56.4

2.32

4.93

8.08

11.54

16.5

12.0

184.8

108.8

57.8

2.54

4.77

8.53

12.92

32.5

26.5

197.9

136.2

44.0

2.73

4.01

8.51

13.44

  1. Note that the partial dislocation accelerates and reaches a transient supersonic velocity of ~15 km/s for ~0.2 ps.
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