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Eu4Ir

Traditional Materials TRA

MP-ID: mp-623108 · Space group: I4_1/amd (#141)

Materials Project API

Basic Information

Formula
Eu4Ir
MP-ID
mp-623108
Elements
2
Sites
10
Density
7.5491
g/cm³
Volume
351.97
ų
Cell a
7.7132
Å
Cell b
7.7132
Å
Cell c
7.7132
Å
α Angle
107.52
°
β Angle
107.52
°
γ Angle
113.44
°
Space Group
I4_1/amd
Point Group
4/mmm
Crystal System
Tetragonal
Bravais Lattice
tI
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)
2θd (Å)Ihkl
14.28 6.2041 48.9 (1,0,0)
14.28 6.2040 48.9 (0,1,0)
14.28 6.2040 48.9 (0,1,-1)
14.28 6.2040 48.9 (1,0,-1)
19.47 4.5597 92.1 (1,-1,1)
19.47 4.5596 92.1 (1,-1,-1)
24.22 3.6742 1.6 (1,0,1)
24.22 3.6741 1.6 (0,1,1)
24.22 3.6741 1.6 (0,1,-2)
24.22 3.6741 1.6 (2,-1,0)
24.22 3.6741 1.6 (1,0,-2)
24.22 3.6741 1.6 (1,-2,1)
24.22 3.6741 1.6 (1,-2,0)
24.22 3.6740 1.6 (2,-1,-1)
25.17 3.5384 2.1 (1,1,0)
25.17 3.5383 2.1 (2,0,-1)
25.17 3.5383 2.1 (0,2,-1)
25.17 3.5383 2.1 (1,1,-2)
27.67 3.2242 42.8 (0,0,2)
27.67 3.2241 42.8 (2,-2,0)
28.78 3.1021 89.7 (2,0,0)
28.78 3.1020 89.7 (0,2,0)
28.78 3.1020 89.7 (0,2,-2)
28.78 3.1020 89.7 (2,0,-2)
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Energy Properties

Formation Energy/atom
-0.32107
eV/atom
Energy/atom
-41.60965
eV/atom
Energy above Hull
0.0000
eV/atom
Uncorrected Energy
-41.6096
eV/atom
Volume/atom
35.20
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
58.4210
μB
Mag. Ordering
Unknown
Mag. Sites
0
Magnetization/Volume
0.165980
μB/ų

Elastic Properties

Elastic data not available

Feature Analysis

Composition Overview

Element Composition (atomic fraction)
Composition Info
Major / Matrix Element
Eu · 0.800
Element Family
N/A
Solute Fraction
0.200
Interstitial Fraction
0.000

Traditional Material Features

ROM Blended-Feature Radar
Rating & Classification
Tier
A
Score
0.724
Family
Binary Alloy
Matrix Element
Eu · 0.800

Related Tasks

Related computation task IDs (5)
aaadnmyk aaadqzvh aaaektnq aaaeufpa aaafipgk

Citation & References

Materials Project Page
https://materialsproject.org/materials/mp-623108
Reference Citation

The crystal structure and related material properties of Eu4Ir were obtained from the Materials Project database (MP-ID: mp-623108, 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…

Style: Ball & Stick
Raw CIF Data 
# generated using pymatgen
data_Eu4Ir
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   7.71318820
_cell_length_b   7.71318078
_cell_length_c   7.71324037
_cell_angle_alpha   107.52368979
_cell_angle_beta   107.52199313
_cell_angle_gamma   113.44101918
_symmetry_Int_Tables_number   1
_chemical_formula_structural   Eu4Ir
_chemical_formula_sum   'Eu8 Ir2'
_cell_volume   351.97489372
_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  0.30439637  0.24759105  0.44319336  1.0
  Eu  Eu1  1  0.69559921  0.13879379  0.94321113  1.0
  Eu  Eu2  1  0.86118211  0.30438702  0.55678374  1.0
  Eu  Eu3  1  0.30439358  0.86119755  0.05678644  1.0
  Eu  Eu4  1  0.13881435  0.69561089  0.44321771  1.0
  Eu  Eu5  1  0.69559725  0.75240364  0.55680601  1.0
  Eu  Eu6  1  0.24758533  0.30438964  0.94320101  1.0
  Eu  Eu7  1  0.75241438  0.69560976  0.05680102  1.0
  Ir  Ir8  1  0.62501282  0.37499799  0.24999580  1.0
  Ir  Ir9  1  0.37500361  0.62501966  0.75000379  1.0
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