TmLuB6Os

高熵材料 HEA

MP-ID: mp-3295497 · Space group: Pbam (#55)

Materials Project API

Basic Information

Formula

TmLuB6Os

MP-ID

mp-3295497

Elements

Sites

Density

10.7740

g/cm³

Volume

369.28

Å³

Cell a

3.5972

Cell b

9.0174

Cell c

11.3845

α Angle

90.00

β Angle

90.00

γ Angle

90.00

Space Group

Pbam

Point Group

mmm

Crystal System

Orthorhombic

Bravais Lattice

Stability

Yes

Packing Fraction

X-ray Diffraction

Diffraction Pattern

Target / Radiation

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

Diffraction Peaks (Top 24)

2θ	d (Å)	I	hkl
15.57	5.6923	2.7	(0,0,2)
18.43	4.8135	2.9	(0,1,2)
24.75	3.5972	100.0	(1,0,0)
30.77	2.9062	34.1	(0,3,1)
30.80	2.9033	29.1	(0,2,3)
31.04	2.8815	1.0	(1,1,2)
31.43	2.8461	21.0	(0,0,4)
33.00	2.7142	28.6	(0,1,4)
33.72	2.6580	26.0	(0,3,2)
37.36	2.4067	1.3	(0,2,4)
38.20	2.3562	13.9	(0,3,3)
39.88	2.2606	40.8	(1,3,1)
39.90	2.2593	35.1	(1,2,3)
39.99	2.2543	3.9	(0,4,0)
40.41	2.2320	25.4	(1,0,4)
40.80	2.2114	1.7	(0,4,1)
40.88	2.2076	4.4	(0,1,5)
41.69	2.1666	35.2	(1,1,4)
42.28	2.1377	32.7	(1,3,2)
43.16	2.0960	1.7	(0,4,2)
44.58	2.0324	1.3	(0,2,5)
45.34	2.0003	1.7	(1,2,4)
46.05	1.9710	18.9	(1,3,3)
47.60	1.9102	5.4	(1,4,0)

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Energy Properties

Formation Energy/atom

-0.80238

eV/atom

Energy/atom

-19.72063

eV/atom

Energy above Hull

0.0000

eV/atom

Uncorrected Energy

-19.7206

eV/atom

Volume/atom

10.26

Å³

c/a Ratio

3.1649

Electronic Properties

Metallic

Metal

Band Gap

Direct Gap

CBM

N/A

Magnetic Properties

Magnetic

Total Mag. Moment

0.0011

μB

Mag. Ordering

Mag. Sites

Magnetization/Volume

0.000000

μB/Å³

Elastic Properties

Elastic data not available

Feature Analysis

Element Composition (atomic fraction)

Composition Info

Major / Matrix Element

B · 0.667

Element Family

Metalloid-Nonmetal

Solute Fraction

0.333

Interstitial Fraction

0.667

Composite Radar (normalized)

Element-Class Share

Mix Entropy ΔS/R

1.0027

HEA criterion (>1.0 = high entropy)

Mix Entropy ΔS

8.3366

J/mol·K

Ω Parameter

6.1845

Ω > 1.1 favors solid solution

Atomic Size Mismatch δr

31.166%

δr < 6.6% favors single-phase solid solution

Electronegativity Diff Δχ

0.3374

smaller = more stable mixing

VEC

4.556

valence electron concentration, affects phase stability

Mix Enthalpy ΔH_mix

-3.167

kJ/mol; negative = exothermic mixing

Entropy Norm

0.7233

SS Former

Phase Tendency

Related Tasks

Related computation task IDs (1)

aaahfmzx

Citation & References

Materials Project Page

https://materialsproject.org/materials/mp-3295497

Reference Citation

The crystal structure and related material properties of TmLuB6Os were obtained from the Materials Project database (MP-ID: mp-3295497, 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

Loading 3D structure…

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Raw CIF Data

# generated using pymatgen
data_TmLuB6Os
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   3.59718032
_cell_length_b   9.01736361
_cell_length_c   11.38453689
_cell_angle_alpha   90.00000000
_cell_angle_beta   90.00000000
_cell_angle_gamma   90.00000000
_symmetry_Int_Tables_number   1
_chemical_formula_structural   TmLuB6Os
_chemical_formula_sum   'Tm4 Lu4 B24 Os4'
_cell_volume   369.28116753
_cell_formula_units_Z   4
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  0.00000000  0.32009229  0.41400664  1.0
  Tm  Tm1  1  0.00000000  0.67990771  0.58599336  1.0
  Tm  Tm2  1  0.00000000  0.82009229  0.08599336  1.0
  Tm  Tm3  1  0.00000000  0.17990771  0.91400664  1.0
  Lu  Lu4  1  0.00000000  0.94428042  0.37358893  1.0
  Lu  Lu5  1  0.00000000  0.05571958  0.62641107  1.0
  Lu  Lu6  1  0.00000000  0.44428042  0.12641107  1.0
  Lu  Lu7  1  0.00000000  0.55571958  0.87358893  1.0
  B  B8  1  0.50000000  0.55369492  0.43338612  1.0
  B  B9  1  0.50000000  0.44630508  0.56661388  1.0
  B  B10  1  0.50000000  0.05369492  0.06661388  1.0
  B  B11  1  0.50000000  0.94630508  0.93338612  1.0
  B  B12  1  0.50000000  0.74940320  0.42021012  1.0
  B  B13  1  0.50000000  0.25059680  0.57978988  1.0
  B  B14  1  0.50000000  0.24940320  0.07978988  1.0
  B  B15  1  0.50000000  0.75059680  0.92021012  1.0
  B  B16  1  0.50000000  0.79166747  0.26592607  1.0
  B  B17  1  0.50000000  0.20833253  0.73407293  1.0
  B  B18  1  0.50000000  0.29166747  0.23407393  1.0
  B  B19  1  0.50000000  0.70833253  0.76592707  1.0
  B  B20  1  0.50000000  0.63078554  0.18429257  1.0
  B  B21  1  0.50000000  0.36921446  0.81570743  1.0
  B  B22  1  0.50000000  0.13078554  0.31570743  1.0
  B  B23  1  0.50000000  0.86921446  0.68429257  1.0
  B  B24  1  0.50000000  0.98183860  0.21341790  1.0
  B  B25  1  0.50000000  0.01816140  0.78658210  1.0
  B  B26  1  0.50000000  0.48183860  0.28658210  1.0
  B  B27  1  0.50000000  0.51816140  0.71341790  1.0
  B  B28  1  0.50000000  0.60616717  0.02928295  1.0
  B  B29  1  0.50000000  0.39383283  0.97071705  1.0
  B  B30  1  0.50000000  0.10616717  0.47071705  1.0
  B  B31  1  0.50000000  0.89383283  0.52928295  1.0
  Os  Os32  1  0.00000000  0.63765867  0.32088172  1.0
  Os  Os33  1  0.00000000  0.36234133  0.67911828  1.0
  Os  Os34  1  0.00000000  0.13765867  0.17911828  1.0
  Os  Os35  1  0.00000000  0.86234133  0.82088172  1.0

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