YCo
Traditional Materials TRA Elasticity Data ELAMP-ID: mp-865373 · Space group: R-3m (#166)
Basic Information
Formula
YCo
MP-ID
mp-865373
Elements
2
Sites
4
Density
5.3633
g/cm³
Volume
91.55
ų
Cell a
3.8752
Å
Cell b
3.8752
Å
Cell c
7.3834
Å
α Angle
105.20
°
β Angle
74.80
°
γ Angle
119.97
°
Space Group
R-3m
Point Group
-3m
Crystal System
Trigonal
Bravais Lattice
hR
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 |
|---|---|---|---|
| 12.58 | 7.0370 | 100.0 | (0,0,1) |
| 25.31 | 3.5185 | 5.1 | (0,0,2) |
| 26.89 | 3.3155 | 14.0 | (1,0,0) |
| 26.89 | 3.3154 | 14.0 | (0,1,0) |
| 26.90 | 3.3138 | 13.9 | (1,-1,1) |
| 31.58 | 2.8328 | 29.7 | (1,0,-1) |
| 31.58 | 2.8328 | 29.7 | (0,1,1) |
| 31.60 | 2.8313 | 29.9 | (1,-1,2) |
| 34.12 | 2.6275 | 52.0 | (0,1,-2) |
| 34.12 | 2.6275 | 52.0 | (1,0,2) |
| 34.13 | 2.6273 | 51.8 | (1,-1,-1) |
| 38.37 | 2.3457 | 22.1 | (0,0,3) |
| 40.19 | 2.2436 | 15.0 | (1,0,-2) |
| 40.19 | 2.2436 | 15.0 | (0,1,2) |
| 40.21 | 2.2427 | 14.8 | (1,-1,3) |
| 43.63 | 2.0746 | 5.4 | (1,-1,-2) |
| 43.63 | 2.0745 | 5.3 | (0,1,-3) |
| 43.63 | 2.0745 | 5.3 | (1,0,3) |
| 46.87 | 1.9385 | 31.5 | (1,1,0) |
| 46.89 | 1.9376 | 31.5 | (2,-1,1) |
| 46.89 | 1.9376 | 31.5 | (1,-2,1) |
| 48.73 | 1.8689 | 3.0 | (1,1,-1) |
| 48.73 | 1.8689 | 3.0 | (1,1,1) |
| 48.74 | 1.8682 | 3.0 | (2,-1,0) |
Energy Properties
Formation Energy/atom
-0.16334
eV/atom
Energy/atom
-6.98459
eV/atom
Energy above Hull
0.0000
eV/atom
Uncorrected Energy
-16.8858
eV/atom
Volume/atom
22.89
ų
c/a Ratio
1.9053
Electronic Properties
Metallic
Metal
Band Gap
0
eV
Direct Gap
No
CBM
N/A
eV
Magnetic Properties
Magnetic
Yes
Total Mag. Moment
2.4055
μB
Mag. Ordering
Unknown
Mag. Sites
0
Magnetization/Volume
0.026280
μB/ų
Elastic Properties
KVRH
53.429
GPa
GVRH
22.170
GPa
Young's Modulus E
58.428
GPa
Poisson Ratio ν
0.318
Pugh Ratio K/G
2.410
Vickers Hardness Est.
1.379
GPa
Ductility
Brittle
Anisotropy
1.187
Lame λ
38.649
GPa
Feature Analysis
Composition Overview
Element Composition (atomic fraction)
Composition Info
Major / Matrix Element
Y · 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
0.624
Family
Binary Alloy
Matrix Element
Y · 0.500
Elasticity Features
Elastic Modulus Comparison (GPa)
Elastic Features
Elastic Anisotropy AU
1.1870
Homogeneous Poisson ν
0.3180
Debye Temperature
238.6
K
Sound Velocity
2,276.2
m/s
Homogeneity
0.3180
Related Tasks
Citation & References
Materials Project Page
https://materialsproject.org/materials/mp-865373
Reference Citation
The crystal structure and related material properties of YCo were obtained from the Materials Project database (MP-ID: mp-865373, 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_YCo
_symmetry_space_group_name_H-M 'P 1'
_cell_length_a 3.87524040
_cell_length_b 3.87523683
_cell_length_c 7.38340222
_cell_angle_alpha 105.19577087
_cell_angle_beta 74.80431413
_cell_angle_gamma 119.97121256
_symmetry_Int_Tables_number 1
_chemical_formula_structural YCo
_chemical_formula_sum 'Y2 Co2'
_cell_volume 91.54622463
_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
Y Y0 1 0.91004929 0.08995271 0.27054226 1.0
Y Y1 1 0.08995071 0.91004729 0.72945774 1.0
Co Co2 1 0.32965990 0.67034110 0.01101554 1.0
Co Co3 1 0.67034010 0.32965890 0.98898346 1.0
