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Eu3Dy

Traditional Materials TRA

MP-ID: mp-1184402 · Space group: P6_3/mmc (#194)

Materials Project API

Basic Information

Formula
Eu3Dy
MP-ID
mp-1184402
Elements
2
Sites
8
Density
6.5471
g/cm³
Volume
313.69
ų
Cell a
7.6433
Å
Cell b
7.6433
Å
Cell c
6.2002
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 20)
2θd (Å)Ihkl
26.94 3.3096 23.1 (2,0,-2,0)
28.80 3.1001 26.0 (0,0,0,2)
30.62 2.9197 100.0 (2,0,-2,1)
39.84 2.2626 16.4 (2,0,-2,2)
47.59 1.9108 19.6 (4,-2,-2,0)
52.18 1.7530 22.5 (2,0,-2,3)
55.53 1.6548 3.1 (4,0,-4,0)
56.58 1.6267 23.4 (4,-2,-2,2)
57.65 1.5989 16.5 (4,0,-4,1)
59.65 1.5501 3.3 (0,0,0,4)
63.75 1.4599 4.1 (4,0,-4,2)
66.62 1.4037 3.6 (2,0,-2,4)
73.28 1.2918 8.2 (4,0,-4,3)
76.09 1.2509 2.4 (6,-2,-4,0)
77.91 1.2262 13.8 (6,-2,-4,1)
79.65 1.2038 8.8 (4,-2,-2,4)
83.20 1.1612 6.0 (2,0,-2,5)
83.30 1.1601 3.9 (6,-2,-4,2)
85.92 1.1313 1.8 (4,0,-4,4)
88.66 1.1032 3.4 (6,0,-6,0)
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Energy Properties

Formation Energy/atom
0.08139
eV/atom
Energy/atom
-36.80473
eV/atom
Energy above Hull
0.0814
eV/atom
Uncorrected Energy
-8.7631
eV/atom
Volume/atom
39.21
ų
c/a Ratio
0.8112

Electronic Properties

Metallic
Metal
Band Gap
0
eV
Direct Gap
No
CBM
N/A
eV

Magnetic Properties

Magnetic
Yes
Total Mag. Moment
44.7233
μB
Mag. Ordering
FM
Mag. Sites
8
Magnetization/Volume
0.142570
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
0.587
Family
Binary Alloy
Matrix Element
Eu · 0.750

Related Tasks

Related computation task IDs (2)
aaadbibn aaadvfax

Citation & References

Materials Project Page
https://materialsproject.org/materials/mp-1184402
Reference Citation

The crystal structure and related material properties of Eu3Dy were obtained from the Materials Project database (MP-ID: mp-1184402, 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_Eu3Dy
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   7.64329196
_cell_length_b   7.64329196
_cell_length_c   6.20018500
_cell_angle_alpha   90.00000000
_cell_angle_beta   90.00000000
_cell_angle_gamma   119.99999970
_symmetry_Int_Tables_number   1
_chemical_formula_structural   Eu3Dy
_chemical_formula_sum   'Eu6 Dy2'
_cell_volume   313.68675386
_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  0.16958600  0.33917200  0.25000000  1.0
  Eu  Eu1  1  0.66082800  0.83041400  0.25000000  1.0
  Eu  Eu2  1  0.16958600  0.83041400  0.25000000  1.0
  Eu  Eu3  1  0.83041400  0.66082800  0.75000000  1.0
  Eu  Eu4  1  0.33917200  0.16958600  0.75000000  1.0
  Eu  Eu5  1  0.83041400  0.16958600  0.75000000  1.0
  Dy  Dy6  1  0.33333300  0.66666700  0.75000000  1.0
  Dy  Dy7  1  0.66666700  0.33333300  0.25000000  1.0
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