Te2MoWSeS

High-Entropy Materials HEA

MP-ID: mp-1029213 · Space group: P3m1 (#156)

Materials Project API

Basic Information

Formula

Te2MoWSeS

MP-ID

mp-1029213

Elements

Sites

Density

5.5506

g/cm³

Volume

386.52

Å³

Cell a

3.3930

Cell b

3.3930

Cell c

38.7676

α Angle

90.00

β Angle

90.00

γ Angle

120.00

Space Group

P3m1

Point Group

Crystal System

Trigonal

Bravais Lattice

Stability

Packing Fraction

0.7405

X-ray Diffraction

Diffraction Pattern

Target / Radiation

X-axis: 2θ (°); Y-axis: relative intensity; Cu Kα ; λ=1.5418 Å

Diffraction Peaks (Top 16)

2θ	d (Å)	I	hkl
2.28	38.7676	100.0	(0,0,0,1)
4.56	19.3838	24.6	(0,0,0,2)
6.84	12.9225	3.1	(0,0,0,3)
11.41	7.7535	10.6	(0,0,0,5)
13.71	6.4613	2.5	(0,0,0,6)
20.62	4.3075	1.1	(0,0,0,9)
30.42	2.9384	3.7	(1,0,-1,0)
30.51	2.9300	1.5	(1,0,-1,1)
35.74	2.5126	3.1	(1,-1,0,8)
35.74	2.5126	6.3	(1,0,-1,8)
37.03	2.4274	1.0	(1,0,-1,9)
43.22	2.0931	5.4	(1,0,-1,13)
44.98	2.0153	1.9	(1,0,-1,14)
54.05	1.6965	1.9	(2,-1,-1,0)
66.50	1.4060	1.0	(2,0,-2,8)
76.22	1.2492	1.0	(2,-1,-1,21)

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Energy Properties

Formation Energy/atom

-0.36393

eV/atom

Energy/atom

-25.46724

eV/atom

Energy above Hull

0.1616

eV/atom

Uncorrected Energy

-6.7103

eV/atom

Volume/atom

32.21

Å³

c/a Ratio

11.4257

Electronic Properties

Metallic

Metal

Band Gap

Direct Gap

CBM

N/A

Magnetic Properties

Magnetic

Total Mag. Moment

0.0002

μB

Mag. Ordering

Mag. Sites

Magnetization/Volume

0.000000

μB/Å³

Elastic Properties

Elastic data not available

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

1.5607

HEA criterion (>1.0 = high entropy)

Mix Entropy ΔS

12.9757

J/mol·K

Ω Parameter

7.9118

Ω > 1.1 favors solid solution

Atomic Size Mismatch δr

11.439%

δr < 6.6% favors single-phase solid solution

Electronegativity Diff Δχ

0.2015

smaller = more stable mixing

VEC

5.000

valence electron concentration, affects phase stability

Mix Enthalpy ΔH_mix

2.438

kJ/mol; negative = exothermic mixing

Entropy Norm

0.9697

SS Former

Phase Tendency

Related Tasks

Related computation task IDs (2)

aaacgont aaadafal

Citation & References

Materials Project Page

https://materialsproject.org/materials/mp-1029213

Reference Citation

The crystal structure and related material properties of Te2MoWSeS were obtained from the Materials Project database (MP-ID: mp-1029213, 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_Te2MoWSeS
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   3.39302042
_cell_length_b   3.39302042
_cell_length_c   38.76756500
_cell_angle_alpha   90.00000000
_cell_angle_beta   90.00000000
_cell_angle_gamma   120.00000818
_symmetry_Int_Tables_number   1
_chemical_formula_structural   Te2MoWSeS
_chemical_formula_sum   'Te4 Mo2 W2 Se2 S2'
_cell_volume   386.52008483
_cell_formula_units_Z   2
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  0.70588000  1.0
  Te  Te1  1  0.33333300  0.66666700  0.04557200  1.0
  Te  Te2  1  0.33333300  0.66666700  0.14228800  1.0
  Te  Te3  1  0.00000000  0.00000000  0.60919400  1.0
  Mo  Mo4  1  0.00000000  0.00000000  0.09390000  1.0
  Mo  Mo5  1  0.33333300  0.66666700  0.65756000  1.0
  W  W6  1  0.00000000  0.00000000  0.46965000  1.0
  W  W7  1  0.33333300  0.66666700  0.28179000  1.0
  Se  Se8  1  0.33333300  0.66666700  0.42694500  1.0
  Se  Se9  1  0.33333300  0.66666700  0.51235700  1.0
  S  S10  1  0.00000000  0.00000000  0.32068600  1.0
  S  S11  1  0.00000000  0.00000000  0.24292400  1.0

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