Enter a species  (e.g. Al, Fe): Tl
Enter a hexagonal lattice type (e.g. hcp): hcp
Enter a model name: LJ_ElliottAkerson_2015_Universal__MO_959249795837_003
Enter hexagonal lattice constants 'a' and 'c' (m): 2.820437231510562e-10, 4.605846642014142e-10

Calculating isothermal bulk modulus

Warning: Maximum number of function evaluations has been exceeded.

Finished calculation

C11 = 771.6567707052533 GPa
C12 = 206.52049280779087 GPa
  B = 394.89925210694497 GPa