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KCr5Te8

High-Entropy Materials HEA Traditional Materials TRA

MP-ID: mp-1103869 · Space group: C2/m (#12)

Basic Information

Formula
KCr5Te8
MP-ID
mp-1103869
Elements
3
Sites
14
Density
5.7020
g/cm³
Volume
384.38
ų
Cell a
10.4401
Å
Cell b
10.4401
Å
Cell c
9.6156
Å
α Angle
75.67
°
β Angle
75.67
°
γ Angle
22.27
°
Space Group
C2/m
Point Group
2/m
Crystal System
Monoclinic
Bravais Lattice
Monoclinic C
Stability
Yes
Packing Fraction
0.5240

X-ray Diffraction

Diffraction Pattern
X-axis: 2θ (°); Y-axis: relative intensity; CuKa ; λ=1.5406 Å
Diffraction Peaks (Top 24)
2θd (Å)Ihkl
8.92 9.9123 22.1 (1,1,0)
9.51 9.3047 32.9 (0,0,1)
11.28 7.8425 21.5 (1,1,1)
14.61 6.0637 2.4 (1,1,-1)
18.92 4.6911 3.2 (1,1,2)
22.35 3.9778 3.1 (2,2,-1)
24.02 3.7051 3.9 (1,0,1)
25.88 3.4424 4.1 (2,1,0)
26.25 3.3954 2.9 (3,3,1)
26.40 3.3761 7.0 (2,1,1)
26.99 3.3041 4.0 (3,3,0)
28.78 3.1016 34.2 (0,0,3)
28.81 3.0988 100.0 (2,1,-1)
28.90 3.0896 3.5 (1,0,2)
28.93 3.0863 46.2 (3,3,2)
29.46 3.0318 2.3 (2,2,-2)
30.20 2.9594 71.0 (2,1,2)
30.92 2.8921 31.6 (3,3,-1)
34.01 2.6357 2.9 (3,2,2)
34.30 2.6142 14.3 (3,3,3)
34.38 2.6082 25.9 (2,1,-2)
36.25 2.4781 1.7 (4,4,0)
36.35 2.4714 23.1 (2,1,3)
37.14 2.4210 12.3 (3,3,-2)
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Energy Properties

Formation Energy/atom
-0.55479
eV/atom
Energy/atom
-5.87930
eV/atom
Energy above Hull
0.0000
eV/atom
Uncorrected Energy
-5.6382
eV/atom
Volume/atom
27.46
ų
c/a Ratio
-

Electronic Properties

Metallic
Metal
Band Gap
0
eV
Direct Gap
No
CBM
N/A
eV

Magnetic Properties

Magnetic
Yes
Total Mag. Moment
15.0018
μB
Mag. Ordering
FM
Mag. Sites
5
Magnetization/Volume
0.039030
μB/ų

Elastic Properties

Elastic data not available

Feature Analysis

Composition Overview

Element Composition (atomic fraction)
Composition Info
Major / Matrix Element
Te · 0.571
Element Family
Metalloid-Nonmetal
Solute Fraction
0.429
Interstitial Fraction
0.000

High-Entropy Alloy Features

Composite Radar (normalized)
Element-Class Share
Mix Entropy ΔS/R
0.8760
HEA criterion (>1.0 = high entropy)
Mix Entropy ΔS
7.2831
J/mol·K
Ω Parameter
0.0000
Ω > 1.1 favors solid solution
Atomic Size Mismatch δr
15.913%
δr < 6.6% favors single-phase solid solution
Electronegativity Diff Δχ
0.3527
smaller = more stable mixing
VEC
4.500
valence electron concentration, affects phase stability
Mix Enthalpy ΔH_mix
0.000
kJ/mol; negative = exothermic mixing
Entropy Norm
0.7974
SS Former
0
Phase Tendency
IM

Traditional Material Features

ROM Blended-Feature Radar
Rating & Classification
Tier
B
Score
0.575
Family
Te-rich Multi-Component
Matrix Element
Te · 0.571

Related Tasks

Citation & References

Materials Project Page
https://materialsproject.org/materials/mp-1103869
Reference Citation

The crystal structure and related material properties of KCr5Te8 were obtained from the Materials Project database (MP-ID: mp-1103869, 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

BibTeX
@article{Horton2025,
  author  = {Horton, Matthew K. and Huck, Patrick and Yang, Ruo Xi and Munro, Jason M. and Dwaraknath, Shyam and Ganose, Alex M. and Kingsbury, Ryan S. and Wen, Mingjian and Shen, Jimmy X. and Mathis, Tyler S. and Kaplan, Aaron D. and Berket, Karlo and Riebesell, Janosh and George, Janine and Rosen, Andrew S. and Spotte-Smith, Evan W. C. and McDermott, Matthew J. and Cohen, Orion A. and Dunn, Alex and Kuner, Matthew C. and Rignanese, Gian-Marco and Petretto, Guido and Waroquiers, David and Griffin, Sinead M. and Neaton, Jeffrey B. and Chrzan, Daryl C. and Asta, Mark and Hautier, Geoffroy and Cholia, Shreyas and Ceder, Gerbrand and Ong, Shyue Ping and Jain, Anubhav and Persson, Kristin A.},
  title   = {Accelerated data-driven materials science with the Materials Project},
  journal = {Nature Materials},
  year    = {2025},
  volume  = {24},
  number  = {10},
  pages   = {1522--1532},
  month   = {oct},
  doi     = {10.1038/s41563-025-02272-0},
  issn    = {1476-4660},
  url     = {https://doi.org/10.1038/s41563-025-02272-0},
  abstract = {The Materials Project was launched formally in 2011 to drive materials discovery forwards through high-throughput computation and open data. More than a decade later, the Materials Project has become an indispensable tool used by more than 600,000 materials researchers around the world. This Perspective describes how the Materials Project, as a data platform and a software ecosystem, has helped to shape research in data-driven materials science. We cover how sustainable software and computational methods have accelerated materials design while becoming more open source and collaborative in nature. Next, we present cases where the Materials Project was used to understand and discover functional materials. We then describe our efforts to meet the needs of an expanding user base, through technical infrastructure updates ranging from data architecture and cloud resources to interactive web applications. Finally, we discuss opportunities to better aid the research community, with the vision that more accessible and easy-to-understand materials data will result in democratized materials knowledge and an increasingly collaborative community.}
}

3D Crystal Structure Rendering

Loading 3D structure…

Style: Ball & Stick
Raw CIF Data
# generated using pymatgen
data_KCr5Te8
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   10.44004688
_cell_length_b   10.44004688
_cell_length_c   9.61556487
_cell_angle_alpha   75.67177425
_cell_angle_beta   75.67177425
_cell_angle_gamma   22.27237006
_symmetry_Int_Tables_number   1
_chemical_formula_structural   KCr5Te8
_chemical_formula_sum   'K1 Cr5 Te8'
_cell_volume   384.37656595
_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
  K  K0  1  0.50000000  0.50000000  0.50000000  1.0
  Cr  Cr1  1  0.00000000  0.00000000  0.00000000  1.0
  Cr  Cr2  1  0.34084100  0.34084100  0.98654400  1.0
  Cr  Cr3  1  0.65915900  0.65915900  0.01345600  1.0
  Cr  Cr4  1  0.29573900  0.29573900  0.33135700  1.0
  Cr  Cr5  1  0.70426100  0.70426100  0.66864300  1.0
  Te  Te6  1  0.57252300  0.57252300  0.83720200  1.0
  Te  Te7  1  0.42747700  0.42747700  0.16279800  1.0
  Te  Te8  1  0.08812000  0.08812000  0.17002100  1.0
  Te  Te9  1  0.91188000  0.91188000  0.82997900  1.0
  Te  Te10  1  0.17040400  0.17040400  0.50911600  1.0
  Te  Te11  1  0.82959600  0.82959600  0.49088400  1.0
  Te  Te12  1  0.23974500  0.23974500  0.84201200  1.0
  Te  Te13  1  0.76025500  0.76025500  0.15798800  1.0
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