AcEu3

Traditional Materials TRA

MP-ID: mp-1183125 · Space group: P6_3/mmc (#194)

Materials Project API

Basic Information

Formula

AcEu3

MP-ID

mp-1183125

Elements

Sites

Density

6.3528

g/cm³

Volume

357.00

Å³

Cell a

7.9999

Cell b

7.9999

Cell c

6.4412

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

Stability

Packing Fraction

0.7405

X-ray Diffraction

Diffraction Pattern

Target / Radiation

X-axis: 2θ (°); Y-axis: relative intensity; Cu Kα ; λ=1.5418 Å

Diffraction Peaks (Top 24)

2θ	d (Å)	I	hkl
12.78	6.9281	1.2	(1,0,-1,0)
18.81	4.7174	2.7	(1,0,-1,1)
22.22	4.0000	1.3	(2,-1,-1,0)
25.72	3.4641	23.0	(2,0,-2,0)
27.70	3.2206	25.5	(0,0,0,2)
29.27	3.0509	100.0	(2,0,-2,1)
37.06	2.4258	1.2	(3,-1,-2,1)
38.15	2.3587	16.6	(2,0,-2,2)
45.35	2.0000	20.3	(4,-2,-2,0)
49.98	1.8250	23.0	(2,0,-2,3)
52.86	1.7320	3.2	(4,0,-4,0)
53.97	1.6990	24.4	(4,-2,-2,2)
54.89	1.6726	17.4	(4,0,-4,1)
57.21	1.6103	3.4	(0,0,0,4)
60.71	1.5254	4.3	(4,0,-4,2)
63.73	1.4602	3.7	(2,0,-2,4)
69.76	1.3481	8.6	(4,0,-4,3)
72.14	1.3093	2.6	(6,-2,-4,0)
73.86	1.2831	14.6	(6,-2,-4,1)
75.85	1.2543	9.1	(4,-2,-2,4)
78.93	1.2129	4.1	(6,-2,-4,2)
79.36	1.2075	6.1	(2,0,-2,5)
81.64	1.1793	1.9	(4,0,-4,4)
83.77	1.1547	3.6	(6,0,-6,0)

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Energy Properties

Formation Energy/atom

0.02547

eV/atom

Energy/atom

-46.02457

eV/atom

Energy above Hull

0.0255

eV/atom

Uncorrected Energy

-8.6976

eV/atom

Volume/atom

44.62

Å³

c/a Ratio

0.8052

Electronic Properties

Metallic

Metal

Band Gap

Direct Gap

CBM

N/A

Magnetic Properties

Magnetic

Yes

Total Mag. Moment

45.3940

μB

Mag. Ordering

Mag. Sites

Magnetization/Volume

0.127150

μB/Å³

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

Score

0.624

Family

Binary Alloy

Matrix Element

Eu · 0.750

Related Tasks

Related computation task IDs (2)

aaadbiek aaaduwmz

Citation & References

Materials Project Page

https://materialsproject.org/materials/mp-1183125

Reference Citation

The crystal structure and related material properties of AcEu3 were obtained from the Materials Project database (MP-ID: mp-1183125, 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_AcEu3
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   7.99991198
_cell_length_b   7.99991198
_cell_length_c   6.44120000
_cell_angle_alpha   90.00000000
_cell_angle_beta   90.00000000
_cell_angle_gamma   119.99999986
_symmetry_Int_Tables_number   1
_chemical_formula_structural   AcEu3
_chemical_formula_sum   'Ac2 Eu6'
_cell_volume   356.99968602
_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
  Ac  Ac0  1  0.33333300  0.66666700  0.75000000  1.0
  Ac  Ac1  1  0.66666700  0.33333300  0.25000000  1.0
  Eu  Eu2  1  0.16741900  0.33483800  0.25000000  1.0
  Eu  Eu3  1  0.66516200  0.83258100  0.25000000  1.0
  Eu  Eu4  1  0.16741900  0.83258100  0.25000000  1.0
  Eu  Eu5  1  0.83258100  0.66516200  0.75000000  1.0
  Eu  Eu6  1  0.33483800  0.16741900  0.75000000  1.0
  Eu  Eu7  1  0.83258100  0.16741900  0.75000000  1.0

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