ELATE: Elastic tensor analysis
Welcome to ELATE, the online tool for analysis of elastic tensors, developed by Romain Gaillac and François-Xavier Coudert at CNRS / Chimie
ParisTech.
If you use the software in published results (paper, conference, etc.), please cite the corresponding paper (J. Phys. Condens. Matter, 2016, 28, 275201) and give the
website URL.
ELATE is open source software. Any queries or comments are welcome at
Summary of the properties
Input: stiffness matrix (coefficients in GPa) of WS2 (Materials Project id mp-1025571)
128 25 -4 0 0 0 25 128 -4 0 0 0 -4 -4 6 0 0 0 0 0 0 -4 0 0 0 0 0 0 -4 0 0 0 0 0 0 51
Average properties
Averaging scheme | Bulk modulus | Young's modulus | Shear modulus | Poisson's ratio |
---|---|---|---|---|
Voigt | KV = 32.889 GPa | EV = 59.711 GPa | GV = 24.933 GPa | νV = 0.19741 |
Reuss | KR = 4.895 GPa | ER = 146.73 GPa | GR = -20.986 GPa | νR = -4.4958 |
Hill | KH = 18.892 GPa | EH = 5.7213 GPa | GH = 1.9735 GPa | νH = 0.44953 |
Eigenvalues of the stiffness matrix
λ1 | λ2 | λ3 | λ4 | λ5 | λ6 |
---|---|---|---|---|---|
-4 GPa | -4 GPa | 5.7826 GPa | 51 GPa | 103 GPa | 153.22 GPa |
Stiffness matrix is not definite positive, crystal is mechanically unstable
No further analysis will be performed.
No further analysis will be performed.