# 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 MnNiSb (Materials Project id mp-22541)

108 120 120 0 0 0 120 108 120 0 0 0 120 120 108 0 0 0 0 0 0 4 0 0 0 0 0 0 4 0 0 0 0 0 0 4

### Average properties

Averaging scheme | Bulk modulus | Young's modulus | Shear modulus | Poisson's ratio |
---|---|---|---|---|

Voigt | K_{V} = 116 GPa | E_{V} = 0 GPa | G_{V} = 0 GPa | ν_{V} = 0.5 |

Reuss | K_{R} = 116 GPa | E_{R} = 34.8 GPa | G_{R} = 12 GPa | ν_{R} = 0.45 |

Hill | K_{H} = 116 GPa | E_{H} = 17.695 GPa | G_{H} = 6 GPa | ν_{H} = 0.47458 |

### Eigenvalues of the stiffness matrix

λ_{1} |
λ_{2} |
λ_{3} |
λ_{4} |
λ_{5} |
λ_{6} |
---|---|---|---|---|---|

-12 GPa | -12 GPa | 4 GPa | 4 GPa | 4 GPa | 348 GPa |

Stiffness matrix is not definite positive, crystal is mechanically unstable

No further analysis will be performed.

No further analysis will be performed.