CsEu
Traditional Materials TRAMP-ID: mp-1183965 · Space group: P-6m2 (#187)
Basic Information
Formula
CsEu
MP-ID
mp-1183965
Elements
2
Sites
2
Density
3.4220
g/cm³
Volume
138.24
ų
Cell a
4.4644
Å
Cell b
4.4644
Å
Cell c
8.0086
Å
α Angle
90.00
°
β Angle
90.00
°
γ Angle
120.00
°
Space Group
P-6m2
Point Group
-6m2
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 |
|---|---|---|---|
| 11.05 | 8.0086 | 1.1 | (0,0,0,1) |
| 22.20 | 4.0043 | 47.0 | (0,0,0,2) |
| 23.00 | 3.8663 | 32.9 | (1,0,-1,0) |
| 25.58 | 3.4818 | 100.0 | (1,0,-1,1) |
| 25.58 | 3.4818 | 50.0 | (1,-1,0,1) |
| 32.18 | 2.7814 | 28.3 | (1,0,-1,2) |
| 40.41 | 2.2322 | 29.6 | (2,-1,-1,0) |
| 41.09 | 2.1968 | 42.4 | (1,0,-1,3) |
| 45.29 | 2.0022 | 7.1 | (0,0,0,4) |
| 46.58 | 1.9497 | 39.2 | (2,-1,-1,2) |
| 47.01 | 1.9332 | 4.9 | (2,0,-2,0) |
| 48.44 | 1.8792 | 26.2 | (2,0,-2,1) |
| 51.39 | 1.7779 | 7.5 | (1,0,-1,4) |
| 52.57 | 1.7409 | 7.0 | (2,0,-2,2) |
| 58.99 | 1.5657 | 14.6 | (2,0,-2,3) |
| 62.29 | 1.4905 | 16.5 | (2,-1,-1,4) |
| 62.80 | 1.4798 | 12.1 | (1,0,-1,5) |
| 63.68 | 1.4613 | 3.9 | (3,-1,-2,0) |
| 64.86 | 1.4376 | 22.0 | (3,-1,-2,1) |
| 67.33 | 1.3907 | 3.3 | (2,0,-2,4) |
| 68.33 | 1.3728 | 6.4 | (3,-1,-2,2) |
| 70.56 | 1.3348 | 1.9 | (0,0,0,6) |
| 73.48 | 1.2888 | 3.4 | (3,0,-3,0) |
| 73.48 | 1.2888 | 1.7 | (3,-3,0,0) |
Energy Properties
Formation Energy/atom
0.29927
eV/atom
Energy/atom
-31.51540
eV/atom
Energy above Hull
0.2993
eV/atom
Uncorrected Energy
-5.2769
eV/atom
Volume/atom
69.12
ų
c/a Ratio
1.7939
Electronic Properties
Metallic
Metal
Band Gap
0
eV
Direct Gap
No
CBM
N/A
eV
Magnetic Properties
Magnetic
Yes
Total Mag. Moment
7.7058
μB
Mag. Ordering
FM
Mag. Sites
1
Magnetization/Volume
0.055740
μB/ų
Elastic Properties
Elastic data not available
Feature Analysis
Composition Overview
Element Composition (atomic fraction)
Composition Info
Major / Matrix Element
Cs · 0.500
Element Family
N/A
Solute Fraction
0.500
Interstitial Fraction
0.000
Traditional Material Features
ROM Blended-Feature Radar
Rating & Classification
Tier
A
Score
0.345
Family
Binary Alloy
Matrix Element
Cs · 0.500
Related Tasks
Citation & References
Materials Project Page
https://materialsproject.org/materials/mp-1183965
Reference Citation
The crystal structure and related material properties of CsEu were obtained from the Materials Project database (MP-ID: mp-1183965, 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_CsEu
_symmetry_space_group_name_H-M 'P 1'
_cell_length_a 4.46441988
_cell_length_b 4.46441988
_cell_length_c 8.00863100
_cell_angle_alpha 90.00000000
_cell_angle_beta 90.00000000
_cell_angle_gamma 119.99999829
_symmetry_Int_Tables_number 1
_chemical_formula_structural CsEu
_chemical_formula_sum 'Cs1 Eu1'
_cell_volume 138.23530997
_cell_formula_units_Z 1
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
Cs Cs0 1 0.33333300 0.66666700 0.50000000 1.0
Eu Eu1 1 0.00000000 0.00000000 0.00000000 1.0
