TeRuSe
High-Entropy Materials HEA Traditional Materials TRA Elasticity Data ELAMP-ID: mp-631381 · Space group: F-43m (#216)
Basic Information
Formula
TeRuSe
MP-ID
mp-631381
Elements
3
Sites
3
Density
7.7746
g/cm³
Volume
65.71
ų
Cell a
4.5294
Å
Cell b
4.5294
Å
Cell c
4.5294
Å
α Angle
60.00
°
β Angle
60.00
°
γ Angle
60.00
°
Space Group
F-43m
Point Group
-43m
Crystal System
Cubic
Bravais Lattice
cF
Stability
No
Packing Fraction
0.7405
X-ray Diffraction
Diffraction Pattern
X-axis: 2θ (°); Y-axis: relative intensity; Cu Kα ; λ=1.5418 Å
Diffraction Peaks (Top 11)
| 2θ | d (Å) | I | hkl |
|---|---|---|---|
| 24.06 | 3.6982 | 18.4 | (1,1,1) |
| 27.86 | 3.2028 | 30.4 | (1,1,0) |
| 39.80 | 2.2647 | 100.0 | (2,1,1) |
| 47.05 | 1.9313 | 8.8 | (2,2,1) |
| 49.28 | 1.8491 | 8.3 | (2,2,2) |
| 57.56 | 1.6014 | 16.7 | (2,2,0) |
| 63.28 | 1.4695 | 3.6 | (3,2,2) |
| 65.13 | 1.4323 | 10.6 | (3,2,1) |
| 72.26 | 1.3075 | 33.5 | (3,3,2) |
| 77.42 | 1.2327 | 2.7 | (3,3,3) |
| 85.82 | 1.1323 | 10.8 | (4,2,2) |
Energy Properties
Formation Energy/atom
0.84895
eV/atom
Energy/atom
-20.86882
eV/atom
Energy above Hull
1.3138
eV/atom
Uncorrected Energy
-4.3720
eV/atom
Volume/atom
21.90
ų
c/a Ratio
1.0000
Electronic Properties
Metallic
Metal
Band Gap
0
eV
Direct Gap
No
CBM
N/A
eV
Magnetic Properties
Magnetic
No
Total Mag. Moment
0.0000
μB
Mag. Ordering
NM
Mag. Sites
0
Magnetization/Volume
0.000000
μB/ų
Elastic Properties
KVRH
79.413
GPa
GVRH
-125.360
GPa
Young's Modulus E
-
GPa
Poisson Ratio ν
2.166
Pugh Ratio K/G
-0.633
Vickers Hardness Est.
-
GPa
Ductility
Ductile
Anisotropy
8.892
Lame λ
162.986
GPa
Feature Analysis
Composition Overview
Element Composition (atomic fraction)
Composition Info
Major / Matrix Element
Te · 0.333
Element Family
Metalloid-Nonmetal
Solute Fraction
0.667
Interstitial Fraction
0.000
High-Entropy Alloy Features
Composite Radar (normalized)
Element-Class Share
Mix Entropy ΔS/R
1.0986
HEA criterion (>1.0 = high entropy)
Mix Entropy ΔS
9.1339
J/mol·K
Ω Parameter
0.0000
Ω > 1.1 favors solid solution
Atomic Size Mismatch δr
8.218%
δr < 6.6% favors single-phase solid solution
Electronegativity Diff Δχ
0.1929
smaller = more stable mixing
VEC
5.333
valence electron concentration, affects phase stability
Mix Enthalpy ΔH_mix
0.000
kJ/mol; negative = exothermic mixing
Entropy Norm
1.0000
SS Former
0
Phase Tendency
IM
Traditional Material Features
ROM Blended-Feature Radar
Rating & Classification
Tier
C
Score
0.190
Family
Te-rich Multi-Component
Matrix Element
Te · 0.333
Elasticity Features
Elastic Modulus Comparison (GPa)
Elastic Features
Elastic Anisotropy AU
8.8920
Homogeneous Poisson ν
2.1660
Homogeneity
2.1660
Related Tasks
Citation & References
Materials Project Page
https://materialsproject.org/materials/mp-631381
Reference Citation
The crystal structure and related material properties of TeRuSe were obtained from the Materials Project database (MP-ID: mp-631381, database version v2026.04.13).
Literature Citation
Horton, M.K., Huck, P., Yang, R.X. et al. Accelerated data-driven materials science with the Materials Project. Nat. Mater. 24, 1522–1532 (2025). https://doi.org/10.1038/s41563-025-02272-0
3D Crystal Structure Rendering
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Raw CIF Data
# generated using pymatgen
data_TeRuSe
_symmetry_space_group_name_H-M 'P 1'
_cell_length_a 4.52937814
_cell_length_b 4.52937814
_cell_length_c 4.52937814
_cell_angle_alpha 60.00000000
_cell_angle_beta 60.00000000
_cell_angle_gamma 60.00000000
_symmetry_Int_Tables_number 1
_chemical_formula_structural TeRuSe
_chemical_formula_sum 'Te1 Ru1 Se1'
_cell_volume 65.70535142
_cell_formula_units_Z 1
loop_
_symmetry_equiv_pos_site_id
_symmetry_equiv_pos_as_xyz
1 'x, y, z'
loop_
_atom_site_type_symbol
_atom_site_label
_atom_site_symmetry_multiplicity
_atom_site_fract_x
_atom_site_fract_y
_atom_site_fract_z
_atom_site_occupancy
Te Te0 1 0.00000000 0.00000000 0.00000000 1.0
Ru Ru1 1 0.50000000 0.50000000 0.50000000 1.0
Se Se2 1 0.25000000 0.25000000 0.25000000 1.0
