ELATE: Elastic tensor analysis

Welcome to ELATE, the online tool for analysis of elastic tensors, developed by Romain Gaillac and Fran├žois-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 Mg3Mo (Materials Project id mp-978287)

       118       35       35        0        0        0  
        35      118       35        0        0        0  
        35       35      118        0        0        0  
         0        0        0       62        0        0  
         0        0        0        0       62        0  
         0        0        0        0        0       62  

Average properties

Averaging schemeBulk modulusYoung's modulusShear modulusPoisson's ratio
VoigtKV = 62.667 GPaEV = 125.49 GPaGV = 53.8 GPaνV = 0.16625
ReussKR = 62.667 GPaER = 121.78 GPaGR = 51.771 GPaνR = 0.17612
HillKH = 62.667 GPaEH = 123.64 GPaGH = 52.785 GPaνH = 0.17117

Eigenvalues of the stiffness matrix

λ1 λ2 λ3 λ4 λ5 λ6
62 GPa 62 GPa 62 GPa 83 GPa 83 GPa 188 GPa

Variations of the elastic moduli

Young's modulusLinear compressibility Shear modulusPoisson's ratio
EminEmax βminβmaxGminGmax νminνmax
Value 101.99 GPa 139.87 GPa 5.3191 TPa–1 5.3191 TPa–1 41.5 GPa 62 GPa0.0321470.28708Value
Anisotropy 1.371 1.0000 1.494 8.9300Anisotropy
Axis 0.0000
0.0000
1.0000
0.5774
0.5774
0.5773
0.5000
0.5000
0.7071
0.8660
0.0000
0.5000
0.7071
-0.0003
0.7071
-0.0000
0.0000
1.0000
0.7071
-0.0002
0.7071
-0.7071
0.0000
0.7071
Axis
0.7071
-0.0005
-0.7071
-1.0000
0.0000
-0.0000
0.7071
-0.0006
-0.7071
-0.0000
-1.0000
0.0000
Second axis

Spatial dependence of Young's modulus



Young's modulus in (xy) plane

Young's modulus in (xz) plane

Young's modulus in (yz) plane

Spatial dependence of linear compressibility



linear compressibility in (xy) plane

linear compressibility in (xz) plane

linear compressibility in (yz) plane

Spatial dependence of shear modulus



Shear modulus in (xy) plane

Shear modulus in (xz) plane

Shear modulus in (yz) plane

Spatial dependence of Poisson's ratio



Poisson's ratio in (xy) plane

Poisson's ratio in (xz) plane

Poisson's ratio in (yz) plane