Nd3Ho
Traditional Materials TRAMP-ID: mp-976418 · Space group: I4/mmm (#139)
Basic Information
Formula
Nd3Ho
MP-ID
mp-976418
Elements
2
Sites
4
Density
7.2470
g/cm³
Volume
136.94
ų
Cell a
6.2930
Å
Cell b
6.2930
Å
Cell c
6.2930
Å
α Angle
131.48
°
β Angle
131.48
°
γ Angle
71.04
°
Space Group
I4/mmm
Point Group
4/mmm
Crystal System
Tetragonal
Bravais Lattice
tI
Stability
No
Packing Fraction
-
X-ray Diffraction
Diffraction Pattern
X-axis: 2θ (°); Y-axis: relative intensity; Cu Kα ; λ=1.5418 Å
Diffraction Peaks (Top 15)
| 2θ | d (Å) | I | hkl |
|---|---|---|---|
| 30.03 | 2.9759 | 100.0 | (2,0,-1) |
| 34.70 | 2.5854 | 34.1 | (1,-1,1) |
| 35.04 | 2.5609 | 16.6 | (2,2,-2) |
| 49.88 | 1.8282 | 12.2 | (2,-2,0) |
| 50.14 | 1.8194 | 24.1 | (3,1,-3) |
| 59.33 | 1.5577 | 29.1 | (3,-1,-2) |
| 59.78 | 1.5469 | 14.2 | (3,3,-4) |
| 62.41 | 1.4879 | 12.5 | (4,0,-2) |
| 73.22 | 1.2927 | 3.9 | (2,-2,2) |
| 74.04 | 1.2805 | 1.9 | (4,4,-4) |
| 81.11 | 1.1857 | 5.9 | (4,-2,-1) |
| 81.51 | 1.1809 | 11.7 | (5,1,-4) |
| 83.63 | 1.1562 | 5.5 | (3,-3,1) |
| 83.83 | 1.1540 | 5.5 | (4,0,-4) |
| 84.42 | 1.1474 | 5.4 | (5,3,-5) |
Energy Properties
Formation Energy/atom
0.02858
eV/atom
Energy/atom
-30.25526
eV/atom
Energy above Hull
0.0286
eV/atom
Uncorrected Energy
-30.2553
eV/atom
Volume/atom
34.24
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
0.0000
μB
Mag. Ordering
Unknown
Mag. Sites
0
Magnetization/Volume
0.000000
μB/ų
Elastic Properties
Elastic data not available
Feature Analysis
Composition Overview
Element Composition (atomic fraction)
Composition Info
Major / Matrix Element
Nd · 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
0.622
Family
Binary Alloy
Matrix Element
Nd · 0.750
Related Tasks
Citation & References
Materials Project Page
https://materialsproject.org/materials/mp-976418
Reference Citation
The crystal structure and related material properties of Nd3Ho were obtained from the Materials Project database (MP-ID: mp-976418, 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_Nd3Ho
_symmetry_space_group_name_H-M 'P 1'
_cell_length_a 6.29299628
_cell_length_b 6.29299628
_cell_length_c 6.29299628
_cell_angle_alpha 131.48491219
_cell_angle_beta 131.48491219
_cell_angle_gamma 71.04377887
_symmetry_Int_Tables_number 1
_chemical_formula_structural Nd3Ho
_chemical_formula_sum 'Nd3 Ho1'
_cell_volume 136.94404811
_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
Nd Nd0 1 0.75000000 0.25000000 0.49999900 1.0
Nd Nd1 1 0.25000000 0.75000000 0.49999900 1.0
Nd Nd2 1 0.49999900 0.49999900 0.00000000 1.0
Ho Ho3 1 0.00000000 -0.00000000 -0.00000000 1.0
