HoNp
Traditional Materials TRAMP-ID: mp-1184927 · Space group: P-6m2 (#187)
Basic Information
Formula
HoNp
MP-ID
mp-1184927
Elements
2
Sites
2
Density
12.2073
g/cm³
Volume
54.67
ų
Cell a
3.2971
Å
Cell b
3.2926
Å
Cell c
5.8145
Å
α Angle
90.00
°
β Angle
90.00
°
γ Angle
119.98
°
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 |
|---|---|---|---|
| 15.24 | 5.8145 | 14.5 | (0,0,0,1) |
| 30.75 | 2.9072 | 100.0 | (0,0,0,2) |
| 31.32 | 2.8559 | 25.8 | (1,0,-1,0) |
| 31.35 | 2.8532 | 26.1 | (1,-1,0,0) |
| 31.37 | 2.8519 | 25.8 | (0,1,-1,0) |
| 35.00 | 2.5634 | 54.1 | (1,0,-1,1) |
| 35.00 | 2.5634 | 54.1 | (1,0,-1,-1) |
| 35.03 | 2.5614 | 53.8 | (1,-1,0,1) |
| 35.03 | 2.5614 | 53.8 | (1,-1,0,-1) |
| 35.05 | 2.5605 | 53.9 | (0,1,-1,-1) |
| 35.05 | 2.5605 | 53.9 | (0,1,-1,1) |
| 44.47 | 2.0373 | 10.1 | (1,0,-1,2) |
| 44.47 | 2.0373 | 10.1 | (1,0,-1,-2) |
| 44.49 | 2.0364 | 10.2 | (1,-1,0,2) |
| 44.49 | 2.0363 | 10.2 | (1,-1,0,-2) |
| 44.50 | 2.0359 | 10.1 | (0,1,-1,-2) |
| 44.50 | 2.0359 | 10.1 | (0,1,-1,2) |
| 46.88 | 1.9382 | 1.0 | (0,0,0,3) |
| 55.76 | 1.6486 | 19.2 | (2,-1,-1,0) |
| 55.79 | 1.6478 | 19.2 | (1,1,-2,0) |
| 55.85 | 1.6463 | 19.1 | (1,-2,1,0) |
| 57.46 | 1.6037 | 13.3 | (1,0,-1,3) |
| 57.46 | 1.6037 | 13.3 | (1,0,-1,-3) |
| 57.48 | 1.6032 | 13.3 | (1,-1,0,3) |
Energy Properties
Formation Energy/atom
0.88739
eV/atom
Energy/atom
-57.06538
eV/atom
Energy above Hull
0.8874
eV/atom
Uncorrected Energy
-7.8777
eV/atom
Volume/atom
27.34
ų
c/a Ratio
1.7635
Electronic Properties
Metallic
Metal
Band Gap
0
eV
Direct Gap
No
CBM
N/A
eV
Magnetic Properties
Magnetic
No
Total Mag. Moment
0.0057
μB
Mag. Ordering
NM
Mag. Sites
0
Magnetization/Volume
0.000100
μB/ų
Elastic Properties
Elastic data not available
Feature Analysis
Composition Overview
Element Composition (atomic fraction)
Composition Info
Major / Matrix Element
Ho · 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
0.344
Family
Binary Alloy
Matrix Element
Ho · 0.500
Related Tasks
Related computation task IDs (1)
Citation & References
Materials Project Page
https://materialsproject.org/materials/mp-1184927
Reference Citation
The crystal structure and related material properties of HoNp were obtained from the Materials Project database (MP-ID: mp-1184927, 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
|
Drag to rotate · Scroll to zoom · Right-click to pan
Raw CIF Data
# generated using pymatgen
data_HoNp
_symmetry_space_group_name_H-M 'P 1'
_cell_length_a 3.29711248
_cell_length_b 3.29255932
_cell_length_c 5.81447700
_cell_angle_alpha 90.00014317
_cell_angle_beta 89.99983430
_cell_angle_gamma 119.98350852
_symmetry_Int_Tables_number 1
_chemical_formula_structural HoNp
_chemical_formula_sum 'Ho1 Np1'
_cell_volume 54.67399470
_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
Ho Ho0 1 0.66690900 0.33319200 0.75000000 1.0
Np Np1 1 0.33309000 0.66680800 0.24999900 1.0
