Eu3Tm
Traditional Materials TRAMP-ID: mp-1184443 · Space group: P6_3/mmc (#194)
Basic Information
Formula
Eu3Tm
MP-ID
mp-1184443
Elements
2
Sites
8
Density
6.6952
g/cm³
Volume
309.94
ų
Cell a
7.6505
Å
Cell b
7.6505
Å
Cell c
6.1146
Å
α Angle
90.00
°
β Angle
90.00
°
γ Angle
120.00
°
Space Group
P6_3/mmc
Point Group
6/mmm
Crystal System
Hexagonal
Bravais Lattice
hP
Stability
No
Packing Fraction
0.7405
X-ray Diffraction
Diffraction Pattern
X-axis: 2θ (°); Y-axis: relative intensity; Cu Kα ; λ=1.5418 Å
Diffraction Peaks (Top 24)
| 2θ | d (Å) | I | hkl |
|---|---|---|---|
| 26.91 | 3.3128 | 23.3 | (2,0,-2,0) |
| 29.21 | 3.0573 | 25.3 | (0,0,0,2) |
| 30.69 | 2.9127 | 100.0 | (2,0,-2,1) |
| 40.14 | 2.2467 | 16.2 | (2,0,-2,2) |
| 47.54 | 1.9126 | 13.2 | (4,-2,-2,0) |
| 47.54 | 1.9126 | 6.6 | (2,2,-4,0) |
| 52.73 | 1.7360 | 21.9 | (2,0,-2,3) |
| 55.48 | 1.6564 | 1.0 | (4,-4,0,0) |
| 55.48 | 1.6564 | 2.1 | (4,0,-4,0) |
| 56.78 | 1.6215 | 23.3 | (4,-2,-2,2) |
| 57.66 | 1.5988 | 5.5 | (4,-4,0,1) |
| 57.66 | 1.5988 | 11.1 | (4,0,-4,1) |
| 60.57 | 1.5287 | 3.2 | (0,0,0,4) |
| 63.92 | 1.4564 | 1.4 | (4,-4,0,2) |
| 63.92 | 1.4564 | 2.7 | (4,0,-4,2) |
| 67.48 | 1.3880 | 1.2 | (2,-2,0,4) |
| 67.48 | 1.3880 | 2.3 | (2,0,-2,4) |
| 73.70 | 1.2854 | 2.7 | (4,-4,0,3) |
| 73.70 | 1.2854 | 5.4 | (4,0,-4,3) |
| 76.01 | 1.2521 | 1.6 | (6,-2,-4,0) |
| 77.88 | 1.2267 | 4.6 | (6,-4,-2,1) |
| 77.88 | 1.2267 | 4.6 | (6,-2,-4,1) |
| 77.88 | 1.2267 | 4.6 | (4,2,-6,1) |
| 80.42 | 1.1941 | 5.8 | (4,-2,-2,4) |
Energy Properties
Formation Energy/atom
0.08348
eV/atom
Energy/atom
-37.58745
eV/atom
Energy above Hull
0.0835
eV/atom
Uncorrected Energy
-8.7282
eV/atom
Volume/atom
38.74
ų
c/a Ratio
0.7993
Electronic Properties
Metallic
Metal
Band Gap
0
eV
Direct Gap
No
CBM
N/A
eV
Magnetic Properties
Magnetic
Yes
Total Mag. Moment
46.0447
μB
Mag. Ordering
FM
Mag. Sites
8
Magnetization/Volume
0.148560
μB/ų
Elastic Properties
Elastic data not available
Feature Analysis
Composition Overview
Element Composition (atomic fraction)
Composition Info
Major / Matrix Element
Eu · 0.750
Element Family
N/A
Solute Fraction
0.250
Interstitial Fraction
0.000
Traditional Material Features
ROM Blended-Feature Radar
Rating & Classification
Tier
A
Score
0.586
Family
Binary Alloy
Matrix Element
Eu · 0.750
Related Tasks
Citation & References
Materials Project Page
https://materialsproject.org/materials/mp-1184443
Reference Citation
The crystal structure and related material properties of Eu3Tm were obtained from the Materials Project database (MP-ID: mp-1184443, 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_Eu3Tm
_symmetry_space_group_name_H-M 'P 1'
_cell_length_a 7.65046918
_cell_length_b 7.65046918
_cell_length_c 6.11462500
_cell_angle_alpha 90.00000000
_cell_angle_beta 90.00000000
_cell_angle_gamma 120.00001019
_symmetry_Int_Tables_number 1
_chemical_formula_structural Eu3Tm
_chemical_formula_sum 'Eu6 Tm2'
_cell_volume 309.93923333
_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
Eu Eu0 1 0.17001900 0.34003700 0.25000000 1.0
Eu Eu1 1 0.65996300 0.82998100 0.25000000 1.0
Eu Eu2 1 0.17001900 0.82998100 0.25000000 1.0
Eu Eu3 1 0.82998100 0.65996300 0.75000000 1.0
Eu Eu4 1 0.34003700 0.17001900 0.75000000 1.0
Eu Eu5 1 0.82998100 0.17001900 0.75000000 1.0
Tm Tm6 1 0.33333300 0.66666700 0.75000000 1.0
Tm Tm7 1 0.66666700 0.33333300 0.25000000 1.0
