Table 1 Lattice parameters and compressibility of ThC at ambient and high pressure obtained from experiments and calculations.

From: Structural Phase Transition of ThC Under High Pressure

Space group

Dimension & Compressibility

Present work (300 K)

Other works

Experimental

Theoretical

B1

a (Å)

5.3397

5.32182 5.32083

5.34804 5.3525

V03/f. unit)

38.06

37.682 37.663

38.244 38.325 39.108 38.069 38.0810 37.9611 38.7512

B0 (GPa)

147

109#,2,3

1374 1328,9 13410 13511 12112

B0

4.6

3.12

3.094 2.954 2.889 3.0011 3.3112

P 4/nmm

a (Å)

4.205*

4.5095 4.134*

c (Å)

3.099*

3.6835 3.060*

V03/f. unit)

33.2

37.455

B0 (GPa)

220.1

229.65

B0

3

  1. All calculation results were obtained at zero pressure and 0 K. *Obtained at 58.3 GPa. #The stoichiometry is ThC0.76.