Table 2 Structural, elastic, and Raman characters of 3C-SiC under ambient condition.

From: First principles calculation of the nonhydrostatic effects on structure and Raman frequency of 3C-SiC

Lattice constant (Å)

a

Method

Reference

4.361

Calc.

46

4.365

Calc.

48

4.360

Expt.

50

4.326

Expt.

47

4.348

Calc.

This works

Elastic modulus (GPa)

Bulk modulus (GPa)

Shear modulus (GPa)

  

196.2

 

Calc.

67

212

 

Calc.

46

200

 

Calc.

48

211

 

Calc.

49

225.2

 

Calc.

68

224

 

Expt.

50

248

 

Expt.

69

211.4

183.5

Expt.

70

208.7

186.4

Calc.

This works

Raman frequency

  

TO

LO

  

795.9

972.9

Expt.

54

797.7

973.6

Calc.

55

783

956

Calc.

56

772.7

941.1

Calc.

This works