Eu3Mg
Traditional Materials TRAMP-ID: mp-1184394 · Space group: P6_3/mmc (#194)
Basic Information
Formula
Eu3Mg
MP-ID
mp-1184394
Elements
2
Sites
8
Density
5.3044
g/cm³
Volume
300.65
ų
Cell a
7.5823
Å
Cell b
7.5827
Å
Cell c
6.0385
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 |
|---|---|---|---|
| 13.48 | 6.5667 | 4.6 | (1,-1,0,0) |
| 13.48 | 6.5665 | 4.6 | (0,1,-1,0) |
| 13.49 | 6.5662 | 4.6 | (1,0,-1,0) |
| 19.98 | 4.4449 | 23.0 | (1,-1,0,1) |
| 19.98 | 4.4448 | 23.0 | (0,1,-1,1) |
| 19.98 | 4.4447 | 23.0 | (1,0,-1,1) |
| 23.46 | 3.7913 | 8.9 | (1,-2,1,0) |
| 23.47 | 3.7911 | 8.9 | (2,-1,-1,0) |
| 23.47 | 3.7910 | 8.9 | (1,1,-2,0) |
| 27.16 | 3.2834 | 23.3 | (2,-2,0,0) |
| 27.16 | 3.2833 | 23.3 | (0,2,-2,0) |
| 27.16 | 3.2831 | 23.3 | (2,0,-2,0) |
| 29.59 | 3.0193 | 75.6 | (0,0,0,2) |
| 31.00 | 2.8845 | 100.0 | (2,-2,0,1) |
| 31.00 | 2.8845 | 100.0 | (0,2,-2,1) |
| 31.00 | 2.8844 | 99.9 | (2,0,-2,1) |
| 32.64 | 2.7432 | 1.2 | (1,-1,0,2) |
| 32.64 | 2.7432 | 1.2 | (0,1,-1,2) |
| 32.64 | 2.7432 | 1.2 | (1,0,-1,2) |
| 36.19 | 2.4820 | 1.6 | (2,-3,1,0) |
| 36.19 | 2.4820 | 1.6 | (1,-3,2,0) |
| 36.19 | 2.4819 | 1.6 | (3,-2,-1,0) |
| 36.19 | 2.4818 | 1.6 | (3,-1,-2,0) |
| 36.19 | 2.4818 | 1.6 | (1,2,-3,0) |
Energy Properties
Formation Energy/atom
0.01050
eV/atom
Energy/atom
-8.11320
eV/atom
Energy above Hull
0.0427
eV/atom
Uncorrected Energy
-29.9610
eV/atom
Volume/atom
37.58
ų
c/a Ratio
0.7964
Electronic Properties
Metallic
Metal
Band Gap
0
eV
Direct Gap
No
CBM
N/A
eV
Magnetic Properties
Magnetic
Yes
Total Mag. Moment
47.5023
μB
Mag. Ordering
Unknown
Mag. Sites
0
Magnetization/Volume
0.158000
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
0.693
Family
Binary Alloy
Matrix Element
Eu · 0.750
Related Tasks
Related computation task IDs (1)
Citation & References
Materials Project Page
https://materialsproject.org/materials/mp-1184394
Reference Citation
The crystal structure and related material properties of Eu3Mg were obtained from the Materials Project database (MP-ID: mp-1184394, 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_Eu3Mg
_symmetry_space_group_name_H-M 'P 1'
_cell_length_a 7.58227705
_cell_length_b 7.58265664
_cell_length_c 6.03851747
_cell_angle_alpha 90.00000000
_cell_angle_beta 90.00000000
_cell_angle_gamma 120.00369244
_symmetry_Int_Tables_number 1
_chemical_formula_structural Eu3Mg
_chemical_formula_sum 'Eu6 Mg2'
_cell_volume 300.65320543
_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 0.17116820 0.34221499 0.25000000 1.0
Eu Eu1 1 0.17114969 0.82894382 0.25000000 1.0
Eu Eu2 1 0.65775099 0.82886121 0.25000000 1.0
Eu Eu3 1 0.34224901 0.17113879 0.75000000 1.0
Eu Eu4 1 0.82885031 0.17105618 0.75000000 1.0
Eu Eu5 1 0.82883180 0.65778501 0.75000000 1.0
Mg Mg6 1 0.66670229 0.33334558 0.25000000 1.0
Mg Mg7 1 0.33329771 0.66665442 0.75000000 1.0
