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NpP3

Traditional Materials TRA

MP-ID: mp-864899 · Space group: P6_3/mmc (#194)

Basic Information

Formula
NpP3
MP-ID
mp-864899
Elements
2
Sites
8
Density
7.5774
g/cm³
Volume
144.60
ų
Cell a
5.5258
Å
Cell b
5.5258
Å
Cell c
5.4683
Å
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
Hexagonal P
Stability
No
Packing Fraction
0.7400

X-ray Diffraction

Diffraction Pattern
X-axis: 2θ (°); Y-axis: relative intensity; CuKa ; λ=1.5406 Å
Diffraction Peaks (Top 24)
2θd (Å)Ihkl
18.54 4.7855 53.1 (1,-1,0,0)
18.54 4.7855 26.6 (1,0,-1,0)
24.72 3.6012 100.0 (1,-1,0,1)
24.72 3.6012 50.0 (1,0,-1,1)
32.40 2.7629 21.4 (1,-2,1,0)
32.40 2.7629 42.9 (2,-1,-1,0)
32.75 2.7342 50.8 (0,0,0,2)
37.59 2.3927 16.5 (2,-2,0,0)
37.59 2.3927 8.3 (2,0,-2,0)
37.90 2.3740 18.2 (1,-1,0,2)
37.90 2.3740 9.1 (1,0,-1,2)
41.18 2.1921 75.6 (2,-2,0,1)
41.18 2.1921 37.8 (2,0,-2,1)
46.74 1.9434 16.2 (1,-2,1,2)
46.74 1.9434 32.3 (2,-1,-1,2)
50.46 1.8087 1.6 (2,-3,1,0)
50.46 1.8087 1.6 (3,-2,-1,0)
50.46 1.8087 1.6 (3,-1,-2,0)
50.70 1.8006 14.0 (2,-2,0,2)
50.70 1.8006 7.0 (2,0,-2,2)
53.35 1.7172 19.3 (2,-3,1,1)
53.35 1.7172 9.7 (3,-2,-1,1)
53.35 1.7172 19.3 (3,-1,-2,1)
53.35 1.7172 9.7 (2,1,-3,1)
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Energy Properties

Formation Energy/atom
-0.52952
eV/atom
Energy/atom
-28.03713
eV/atom
Energy above Hull
0.2000
eV/atom
Uncorrected Energy
-28.0371
eV/atom
Volume/atom
18.08
ų
c/a Ratio
0.9896

Electronic Properties

Metallic
Metal
Band Gap
0
eV
Direct Gap
No
CBM
N/A
eV

Magnetic Properties

Magnetic
Yes
Total Mag. Moment
5.8634
μB
Mag. Ordering
Unknown
Mag. Sites
0
Magnetization/Volume
0.040550
μB/ų

Elastic Properties

Elastic data not available

Feature Analysis

Composition Overview

Element Composition (atomic fraction)
Composition Info
Major / Matrix Element
P · 0.750
Element Family
N/A
Solute Fraction
0.250
Interstitial Fraction
0.750

Traditional Material Features

ROM Blended-Feature Radar
Rating & Classification
Tier
A
Score
0.508
Family
Binary Alloy
Matrix Element
P · 0.750

Related Tasks

Citation & References

Materials Project Page
https://materialsproject.org/materials/mp-864899
Reference Citation

The crystal structure and related material properties of NpP3 were obtained from the Materials Project database (MP-ID: mp-864899, 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

BibTeX
@article{Horton2025,
  author  = {Horton, Matthew K. and Huck, Patrick and Yang, Ruo Xi and Munro, Jason M. and Dwaraknath, Shyam and Ganose, Alex M. and Kingsbury, Ryan S. and Wen, Mingjian and Shen, Jimmy X. and Mathis, Tyler S. and Kaplan, Aaron D. and Berket, Karlo and Riebesell, Janosh and George, Janine and Rosen, Andrew S. and Spotte-Smith, Evan W. C. and McDermott, Matthew J. and Cohen, Orion A. and Dunn, Alex and Kuner, Matthew C. and Rignanese, Gian-Marco and Petretto, Guido and Waroquiers, David and Griffin, Sinead M. and Neaton, Jeffrey B. and Chrzan, Daryl C. and Asta, Mark and Hautier, Geoffroy and Cholia, Shreyas and Ceder, Gerbrand and Ong, Shyue Ping and Jain, Anubhav and Persson, Kristin A.},
  title   = {Accelerated data-driven materials science with the Materials Project},
  journal = {Nature Materials},
  year    = {2025},
  volume  = {24},
  number  = {10},
  pages   = {1522--1532},
  month   = {oct},
  doi     = {10.1038/s41563-025-02272-0},
  issn    = {1476-4660},
  url     = {https://doi.org/10.1038/s41563-025-02272-0},
  abstract = {The Materials Project was launched formally in 2011 to drive materials discovery forwards through high-throughput computation and open data. More than a decade later, the Materials Project has become an indispensable tool used by more than 600,000 materials researchers around the world. This Perspective describes how the Materials Project, as a data platform and a software ecosystem, has helped to shape research in data-driven materials science. We cover how sustainable software and computational methods have accelerated materials design while becoming more open source and collaborative in nature. Next, we present cases where the Materials Project was used to understand and discover functional materials. We then describe our efforts to meet the needs of an expanding user base, through technical infrastructure updates ranging from data architecture and cloud resources to interactive web applications. Finally, we discuss opportunities to better aid the research community, with the vision that more accessible and easy-to-understand materials data will result in democratized materials knowledge and an increasingly collaborative community.}
}

3D Crystal Structure Rendering

Loading 3D structure…

Style: Ball & Stick
Raw CIF Data
# generated using pymatgen
data_NpP3
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   5.52578349
_cell_length_b   5.52578587
_cell_length_c   5.46831515
_cell_angle_alpha   90.00000000
_cell_angle_beta   90.00000000
_cell_angle_gamma   120.00001750
_symmetry_Int_Tables_number   1
_chemical_formula_structural   NpP3
_chemical_formula_sum   'Np2 P6'
_cell_volume   144.60123660
_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
  Np  Np0  1  0.66666800  0.33333400  0.24999900  1.0
  Np  Np1  1  0.33333500  0.66666800  0.75000000  1.0
  P  P2  1  0.80650587  0.19349413  0.74999900  1.0
  P  P3  1  0.19349725  0.38699549  0.25000000  1.0
  P  P4  1  0.61300651  0.80650375  0.25000000  1.0
  P  P5  1  0.19349725  0.80650275  0.25000000  1.0
  P  P6  1  0.80650587  0.61301373  0.74999900  1.0
  P  P7  1  0.38698827  0.19349513  0.74999900  1.0
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