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Tm6CrFeB14

High-Entropy Materials HEA

MP-ID: mp-3284155 · Space group: Amm2 (#38)

Basic Information

Formula
Tm6CrFeB14
MP-ID
mp-3284155
Elements
4
Sites
22
Density
8.7531
g/cm³
Volume
241.46
ų
Cell a
7.9285
Å
Cell b
7.9285
Å
Cell c
9.1973
Å
α Angle
90.00
°
β Angle
90.00
°
γ Angle
155.31
°
Space Group
Amm2
Point Group
mm2
Crystal System
Orthorhombic
Bravais Lattice
Orthorhombic P
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
11.42 7.7452 3.2 (1,-1,0)
14.95 5.9244 9.4 (1,-1,1)
22.49 3.9542 39.3 (1,-1,2)
22.97 3.8726 7.0 (2,-2,0)
24.95 3.5691 1.9 (2,-2,1)
26.93 3.3113 77.7 (1,0,0)
28.65 3.1155 15.6 (1,0,1)
30.17 2.9622 100.0 (2,-2,2)
31.38 2.8506 69.9 (1,-1,3)
31.57 2.8336 5.5 (2,-1,0)
31.57 2.8336 5.5 (1,-2,0)
33.08 2.7080 30.5 (2,-1,1)
33.08 2.7080 30.5 (1,-2,1)
33.34 2.6872 20.2 (1,0,2)
34.75 2.5817 40.8 (3,-3,0)
36.14 2.4857 14.1 (3,-3,1)
37.27 2.4124 8.7 (2,-1,2)
37.41 2.4037 9.9 (2,-2,3)
39.18 2.2993 10.4 (0,0,4)
39.40 2.2868 34.0 (3,-2,0)
40.08 2.2496 50.3 (1,0,3)
40.08 2.2496 50.3 (0,1,3)
40.65 2.2192 39.9 (3,-2,1)
40.94 2.2043 5.4 (1,-1,4)
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Energy Properties

Formation Energy/atom
-0.70342
eV/atom
Energy/atom
-16.29714
eV/atom
Energy above Hull
0.0000
eV/atom
Uncorrected Energy
-16.2971
eV/atom
Volume/atom
10.98
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
0.7816
μB
Mag. Ordering
FiM
Mag. Sites
8
Magnetization/Volume
0.003240
μB/ų

Elastic Properties

Elastic data not available

Feature Analysis

Composition Overview

Element Composition (atomic fraction)
Composition Info
Major / Matrix Element
B · 0.636
Element Family
Metalloid-Nonmetal
Solute Fraction
0.364
Interstitial Fraction
0.636

High-Entropy Alloy Features

Composite Radar (normalized)
Element-Class Share
Mix Entropy ΔS/R
0.9230
HEA criterion (>1.0 = high entropy)
Mix Entropy ΔS
7.6737
J/mol·K
Ω Parameter
1.5993
Ω > 1.1 favors solid solution
Atomic Size Mismatch δr
31.994%
δr < 6.6% favors single-phase solid solution
Electronegativity Diff Δχ
0.3465
smaller = more stable mixing
VEC
6.091
valence electron concentration, affects phase stability
Mix Enthalpy ΔH_mix
-10.421
kJ/mol; negative = exothermic mixing
Entropy Norm
0.6658
SS Former
0
Phase Tendency
IM

Related Tasks

Related computation task IDs (1)

Citation & References

Materials Project Page
https://materialsproject.org/materials/mp-3284155
Reference Citation

The crystal structure and related material properties of Tm6CrFeB14 were obtained from the Materials Project database (MP-ID: mp-3284155, 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_Tm6CrFeB14
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   7.92846199
_cell_length_b   7.92846142
_cell_length_c   9.19733597
_cell_angle_alpha   90.00000000
_cell_angle_beta   90.00000000
_cell_angle_gamma   155.31404195
_symmetry_Int_Tables_number   1
_chemical_formula_structural   Tm6CrFeB14
_chemical_formula_sum   'Tm6 Cr1 Fe1 B14'
_cell_volume   241.46077208
_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
  Tm  Tm0  1  0.89433899  0.10566101  0.44134864  1.0
  Tm  Tm1  1  0.10530007  0.89469993  0.56066183  1.0
  Tm  Tm2  1  0.89433899  0.10566101  0.05865136  1.0
  Tm  Tm3  1  0.10530007  0.89469993  0.93933817  1.0
  Tm  Tm4  1  0.24282986  0.75717014  0.25000000  1.0
  Tm  Tm5  1  0.75815789  0.24184211  0.75000000  1.0
  Cr  Cr6  1  0.05267700  0.94732300  0.25000000  1.0
  Fe  Fe7  1  0.94594536  0.05405464  0.75000000  1.0
  B  B8  1  0.72810620  0.27189380  0.46687245  1.0
  B  B9  1  0.27283653  0.72716347  0.53535954  1.0
  B  B10  1  0.72810620  0.27189380  0.03312755  1.0
  B  B11  1  0.27283653  0.72716347  0.96464046  1.0
  B  B12  1  0.63145018  0.36854982  0.15055328  1.0
  B  B13  1  0.37048289  0.62951711  0.84721141  1.0
  B  B14  1  0.63145018  0.36854982  0.34944672  1.0
  B  B15  1  0.37048289  0.62951711  0.65278859  1.0
  B  B16  1  0.51986435  0.48013565  0.09540771  1.0
  B  B17  1  0.47926389  0.52073611  0.90229884  1.0
  B  B18  1  0.51986435  0.48013565  0.40459229  1.0
  B  B19  1  0.47926389  0.52073611  0.59770116  1.0
  B  B20  1  0.45514221  0.54485779  0.25000000  1.0
  B  B21  1  0.54195751  0.45804249  0.75000000  1.0
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