Basic Information
Formula
Eu2Sn5Au2
MP-ID
mp-31293
Elements
3
Sites
18
Density
9.3517
g/cm³
Volume
458.62
ų
Cell a
4.6001
Å
Cell b
9.4878
Å
Cell c
10.5118
Å
α Angle
88.48
°
β Angle
90.00
°
γ Angle
90.00
°
Space Group
P2_1/m
Point Group
2/m
Crystal System
Monoclinic
Bravais Lattice
mP
Stability
Yes
Packing Fraction
-
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 |
|---|---|---|---|
| 8.41 | 10.5081 | 1.8 | (0,0,1) |
| 9.32 | 9.4844 | 16.8 | (0,1,0) |
| 16.87 | 5.2541 | 3.8 | (0,0,2) |
| 18.71 | 4.7422 | 2.2 | (0,2,0) |
| 19.09 | 4.6486 | 1.2 | (0,1,2) |
| 19.53 | 4.5451 | 5.1 | (0,1,-2) |
| 20.75 | 4.2801 | 1.2 | (0,2,-1) |
| 21.08 | 4.2140 | 1.1 | (1,0,1) |
| 23.00 | 3.8663 | 12.5 | (1,1,1) |
| 24.96 | 3.5677 | 3.9 | (0,2,2) |
| 25.43 | 3.5027 | 1.0 | (0,0,3) |
| 27.00 | 3.3018 | 7.4 | (1,2,0) |
| 28.23 | 3.1615 | 3.9 | (0,3,0) |
| 28.49 | 3.1335 | 3.3 | (1,2,-1) |
| 31.34 | 2.8539 | 2.2 | (0,2,3) |
| 31.74 | 2.8192 | 100.0 | (1,2,2) |
| 32.12 | 2.7868 | 26.0 | (1,0,3) |
| 32.17 | 2.7824 | 14.2 | (0,2,-3) |
| 32.29 | 2.7727 | 78.0 | (1,2,-2) |
| 32.67 | 2.7412 | 3.8 | (0,3,2) |
| 33.32 | 2.6891 | 13.9 | (1,1,3) |
| 33.47 | 2.6777 | 8.2 | (0,3,-2) |
| 33.71 | 2.6586 | 18.8 | (1,1,-3) |
| 34.13 | 2.6270 | 15.3 | (0,0,4) |
Energy Properties
Formation Energy/atom
-0.52167
eV/atom
Energy/atom
-5.76298
eV/atom
Energy above Hull
0.0000
eV/atom
Uncorrected Energy
-34.0904
eV/atom
Volume/atom
25.48
ų
c/a Ratio
2.2852
Electronic Properties
Metallic
Metal
Band Gap
0
eV
Direct Gap
No
CBM
N/A
eV
Magnetic Properties
Magnetic
Yes
Total Mag. Moment
27.7940
μB
Mag. Ordering
FM
Mag. Sites
4
Magnetization/Volume
0.060600
μB/ų
Elastic Properties
Elastic data not available
Feature Analysis
Element Composition (atomic fraction)
Composition Info
Major / Matrix Element
Sn · 0.556
Element Family
N/A
Solute Fraction
0.444
Interstitial Fraction
0.000
ROM Blended-Feature Radar
Rating & Classification
Tier
A
Score
0.668
Family
Sn-rich Multi-Component
Matrix Element
Sn · 0.556
Related Tasks
Citation & References
Materials Project Page
https://materialsproject.org/materials/mp-31293
Reference Citation
The crystal structure and related material properties of Eu2Sn5Au2 were obtained from the Materials Project database (MP-ID: mp-31293, 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_Eu2Sn5Au2
_symmetry_space_group_name_H-M 'P 1'
_cell_length_a 4.60004609
_cell_length_b 9.48777842
_cell_length_c 10.51181727
_cell_angle_alpha 88.47963938
_cell_angle_beta 90.00000000
_cell_angle_gamma 90.00000000
_symmetry_Int_Tables_number 1
_chemical_formula_structural Eu2Sn5Au2
_chemical_formula_sum 'Eu4 Sn10 Au4'
_cell_volume 458.61853583
_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 0.75000000 0.63807193 0.24626854 1.0
Eu Eu1 1 0.25000000 0.36192807 0.75373146 1.0
Eu Eu2 1 0.75000000 0.09908214 0.24775409 1.0
Eu Eu3 1 0.25000000 0.90091786 0.75224591 1.0
Sn Sn4 1 0.25000000 0.13470397 0.47752365 1.0
Sn Sn5 1 0.75000000 0.86529603 0.52247635 1.0
Sn Sn6 1 0.25000000 0.36957561 0.24080665 1.0
Sn Sn7 1 0.75000000 0.63042439 0.75919335 1.0
Sn Sn8 1 0.25000000 0.60573328 0.52119838 1.0
Sn Sn9 1 0.75000000 0.39426672 0.47880162 1.0
Sn Sn10 1 0.25000000 0.61725126 0.98418043 1.0
Sn Sn11 1 0.75000000 0.38274874 0.01581957 1.0
Sn Sn12 1 0.75000000 0.10695810 0.88561048 1.0
Sn Sn13 1 0.25000000 0.89304190 0.11438952 1.0
Au Au14 1 0.75000000 0.14669610 0.62722989 1.0
Au Au15 1 0.25000000 0.85330390 0.37277011 1.0
Au Au16 1 0.75000000 0.82274448 0.97116464 1.0
Au Au17 1 0.25000000 0.17725552 0.02883536 1.0
