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 MnSbRh (Materials Project id mp-568891)

       106      114      114        0        0        0  
       114      106      114        0        0        0  
       114      114      106        0        0        0  
         0        0        0       11        0        0  
         0        0        0        0       11        0  
         0        0        0        0        0       11  

Average properties

Averaging schemeBulk modulusYoung's modulusShear modulusPoisson's ratio
VoigtKV = 111.33 GPaEV = 14.779 GPaGV = 5 GPaνV = 0.47788
ReussKR = 111.33 GPaER = -70.654 GPaGR = -22 GPaνR = 0.60577
HillKH = 111.33 GPaEH = -26.166 GPaGH = -8.5 GPaνH = 0.53917

Eigenvalues of the stiffness matrix

λ1 λ2 λ3 λ4 λ5 λ6
-8 GPa -8 GPa 11 GPa 11 GPa 11 GPa 334 GPa
Stiffness matrix is not definite positive, crystal is mechanically unstable
No further analysis will be performed.