Basic Information
Formula
TbTl
MP-ID
mp-30878
Elements
2
Sites
2
Density
11.1834
g/cm³
Volume
53.94
ų
Cell a
3.7785
Å
Cell b
3.7785
Å
Cell c
3.7785
Å
α Angle
90.00
°
β Angle
90.00
°
γ Angle
90.00
°
Space Group
Pm-3m
Point Group
m-3m
Crystal System
Cubic
Bravais Lattice
cP
Stability
Yes
Packing Fraction
0.5236
X-ray Diffraction
Diffraction Pattern
X-axis: 2θ (°); Y-axis: relative intensity; Cu Kα ; λ=1.5418 Å
Diffraction Peaks (Top 7)
| 2θ | d (Å) | I | hkl |
|---|---|---|---|
| 23.55 | 3.7785 | 1.6 | (1,0,0) |
| 33.54 | 2.6718 | 100.0 | (1,1,0) |
| 48.17 | 1.8892 | 18.4 | (2,0,0) |
| 59.97 | 1.5426 | 38.4 | (2,1,1) |
| 70.49 | 1.3359 | 11.9 | (2,2,0) |
| 80.36 | 1.1949 | 16.8 | (3,1,0) |
| 89.95 | 1.0908 | 4.4 | (2,2,2) |
Energy Properties
Formation Energy/atom
-0.34050
eV/atom
Energy/atom
-3.84517
eV/atom
Energy above Hull
0.0000
eV/atom
Uncorrected Energy
-42.6723
eV/atom
Volume/atom
26.97
ų
c/a Ratio
1.0000
Electronic Properties
Metallic
Metal
Band Gap
0
eV
Direct Gap
No
CBM
N/A
eV
Magnetic Properties
Magnetic
Yes
Total Mag. Moment
0.0000
μB
Mag. Ordering
Unknown
Mag. Sites
0
Magnetization/Volume
0.000000
μB/ų
Elastic Properties
KVRH
52.636
GPa
GVRH
14.522
GPa
Young's Modulus E
39.897
GPa
Poisson Ratio ν
0.374
Pugh Ratio K/G
3.625
Vickers Hardness Est.
-
GPa
Ductility
Brittle
Anisotropy
7.277
Lame λ
42.955
GPa
Feature Analysis
Element Composition (atomic fraction)
Composition Info
Major / Matrix Element
Tb · 0.500
Element Family
N/A
Solute Fraction
0.500
Interstitial Fraction
0.000
ROM Blended-Feature Radar
Rating & Classification
Tier
A
Score
0.544
Family
Binary Alloy
Matrix Element
Tb · 0.500
Related Tasks
Citation & References
Materials Project Page
https://materialsproject.org/materials/mp-30878
Reference Citation
The crystal structure and related material properties of TbTl were obtained from the Materials Project database (MP-ID: mp-30878, 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_TbTl
_symmetry_space_group_name_H-M 'P 1'
_cell_length_a 3.77847879
_cell_length_b 3.77847879
_cell_length_c 3.77847879
_cell_angle_alpha 90.00000000
_cell_angle_beta 90.00000000
_cell_angle_gamma 90.00000000
_symmetry_Int_Tables_number 1
_chemical_formula_structural TbTl
_chemical_formula_sum 'Tb1 Tl1'
_cell_volume 53.94497127
_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
Tb Tb0 1 -0.00000000 -0.00000000 -0.00000000 1.0
Tl Tl1 1 0.50000000 0.50000000 0.50000000 1.0
