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Ge3N4

Elasticity Data ELA

MP-ID: mp-13852 · Space group: P6_3/m (#176)

Basic Information

Formula
Ge3N4
MP-ID
mp-13852
Elements
2
Sites
14
Density
5.2562
g/cm³
Volume
173.09
ų
Cell a
8.0509
Å
Cell b
8.0509
Å
Cell c
3.0835
Å
α Angle
90.00
°
β Angle
90.00
°
γ Angle
120.00
°
Space Group
P6_3/m
Point Group
6/m
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
12.70 6.9723 18.6 (1,0,-1,0)
22.08 4.0255 22.1 (2,-1,-1,0)
25.55 3.4862 37.8 (2,0,-2,0)
25.55 3.4862 18.9 (0,2,-2,0)
31.73 2.8201 77.0 (1,0,-1,1)
34.02 2.6353 100.0 (3,-1,-2,0)
36.71 2.4479 1.7 (2,-1,-1,1)
38.74 2.3241 1.3 (3,-3,0,0)
39.00 2.3097 61.1 (2,0,-2,1)
45.04 2.0127 2.3 (4,-2,-2,0)
45.04 2.0127 4.7 (2,2,-4,0)
45.26 2.0033 1.8 (3,-1,-2,1)
46.99 1.9338 8.9 (4,-1,-3,0)
49.09 1.8560 44.3 (3,0,-3,1)
54.44 1.6855 6.5 (4,-2,-2,1)
56.14 1.6383 2.2 (4,-1,-3,1)
56.14 1.6383 10.0 (4,-3,-1,1)
57.63 1.5996 5.8 (5,-2,-3,0)
57.63 1.5996 7.1 (3,-5,2,0)
60.00 1.5418 12.3 (0,0,0,2)
60.89 1.5215 5.3 (5,-1,-4,0)
60.89 1.5215 6.2 (4,-5,1,0)
61.07 1.5174 1.6 (4,0,-4,1)
64.75 1.4398 1.3 (2,-1,-1,2)
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Energy Properties

Formation Energy/atom
-0.19239
eV/atom
Energy/atom
-11.35395
eV/atom
Energy above Hull
0.0002
eV/atom
Uncorrected Energy
-11.3540
eV/atom
Volume/atom
12.36
ų
c/a Ratio
0.3830

Electronic Properties

Metallic
Non-metal
Band Gap
1.903
eV
Direct Gap
Yes
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

KVRH
174.776
GPa
GVRH
82.389
GPa
Young's Modulus E
213.603
GPa
Poisson Ratio ν
0.296
Pugh Ratio K/G
2.121
Vickers Hardness Est.
7.957
GPa
Ductility
Brittle
Anisotropy
0.444
Lame λ
119.850
GPa

Feature Analysis

Composition Overview

Element Composition (atomic fraction)
Composition Info
Major / Matrix Element
N · 0.571
Element Family
Metalloid-Nonmetal
Solute Fraction
0.429
Interstitial Fraction
0.571

Elasticity Features

Elastic Modulus Comparison (GPa)
Elastic Features
Elastic Anisotropy AU
0.4440
Homogeneous Poisson ν
0.2960
Debye Temperature
569.0
K
Sound Velocity
4,420.2
m/s
Homogeneity
0.2960

Related Tasks

Citation & References

Materials Project Page
https://materialsproject.org/materials/mp-13852
Reference Citation

The crystal structure and related material properties of Ge3N4 were obtained from the Materials Project database (MP-ID: mp-13852, 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_Ge3N4
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   8.05093195
_cell_length_b   8.05093102
_cell_length_c   3.08352139
_cell_angle_alpha   90.00000000
_cell_angle_beta   90.00000000
_cell_angle_gamma   120.00000112
_symmetry_Int_Tables_number   1
_chemical_formula_structural   Ge3N4
_chemical_formula_sum   'Ge6 N8'
_cell_volume   173.08915352
_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
  Ge  Ge0  1  0.82914730  0.23548350  0.75000000  1.0
  Ge  Ge1  1  0.59366280  0.82914730  0.25000000  1.0
  Ge  Ge2  1  0.23548350  0.40633720  0.25000000  1.0
  Ge  Ge3  1  0.76451650  0.59366280  0.75000000  1.0
  Ge  Ge4  1  0.40633720  0.17085270  0.75000000  1.0
  Ge  Ge5  1  0.17085270  0.76451650  0.25000000  1.0
  N  N6  1  0.66666700  0.33333300  0.75000000  1.0
  N  N7  1  0.33333300  0.66666700  0.25000000  1.0
  N  N8  1  0.66963060  0.97271598  0.75000000  1.0
  N  N9  1  0.69691562  0.66963060  0.25000000  1.0
  N  N10  1  0.97271598  0.30308438  0.25000000  1.0
  N  N11  1  0.02728402  0.69691562  0.75000000  1.0
  N  N12  1  0.33036940  0.02728402  0.25000000  1.0
  N  N13  1  0.30308438  0.33036940  0.75000000  1.0
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