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Mg2Ge

Traditional Materials TRA Elasticity Data ELA

MP-ID: mp-1018794 · Space group: P6_3/mmc (#194)

Basic Information

Formula
Mg2Ge
MP-ID
mp-1018794
Elements
2
Sites
6
Density
3.3978
g/cm³
Volume
118.51
ų
Cell a
4.7369
Å
Cell b
4.7369
Å
Cell c
6.0989
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
21.66 4.1022 16.1 (1,0,-1,0)
26.18 3.4039 40.7 (1,0,-1,1)
26.18 3.4039 20.3 (1,-1,0,1)
29.29 3.0494 23.8 (0,0,0,2)
36.72 2.4473 79.6 (1,0,-1,2)
37.99 2.3684 100.0 (2,-1,-1,0)
44.15 2.0511 2.5 (2,0,-2,0)
46.72 1.9441 12.8 (2,0,-2,1)
48.68 1.8705 34.4 (2,-1,-1,2)
50.08 1.8216 10.4 (1,0,-1,3)
53.87 1.7019 25.5 (2,0,-2,2)
59.63 1.5505 2.0 (3,-1,-2,0)
60.74 1.5247 8.1 (0,0,0,4)
61.73 1.5027 11.0 (3,-1,-2,1)
64.54 1.4439 4.8 (2,0,-2,3)
65.29 1.4292 1.6 (1,0,-1,4)
67.81 1.3821 24.8 (3,-1,-2,2)
68.64 1.3674 16.6 (3,0,-3,0)
73.93 1.2820 26.5 (2,-1,-1,4)
76.32 1.2477 8.8 (3,0,-3,2)
77.41 1.2329 5.8 (3,-1,-2,3)
81.23 1.1842 3.4 (2,2,-4,0)
81.23 1.1842 6.8 (4,-2,-2,0)
82.50 1.1692 2.5 (1,0,-1,5)
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Energy Properties

Formation Energy/atom
-0.19108
eV/atom
Energy/atom
-7.59461
eV/atom
Energy above Hull
0.1528
eV/atom
Uncorrected Energy
-2.7240
eV/atom
Volume/atom
19.75
ų
c/a Ratio
1.2875

Electronic Properties

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

Magnetic Properties

Magnetic
No
Total Mag. Moment
0.0005
μB
Mag. Ordering
NM
Mag. Sites
0
Magnetization/Volume
0.000000
μB/ų

Elastic Properties

KVRH
48.583
GPa
GVRH
15.766
GPa
Young's Modulus E
42.681
GPa
Poisson Ratio ν
0.354
Pugh Ratio K/G
3.082
Vickers Hardness Est.
0.000
GPa
Ductility
Brittle
Anisotropy
0.072
Lame λ
38.072
GPa

Feature Analysis

Composition Overview

Element Composition (atomic fraction)
Composition Info
Major / Matrix Element
Mg · 0.667
Element Family
N/A
Solute Fraction
0.333
Interstitial Fraction
0.000

Traditional Material Features

ROM Blended-Feature Radar
Rating & Classification
Tier
A
Score
0.766
Family
Mg-based Alloy
Matrix Element
Mg · 0.667

Elasticity Features

Elastic Modulus Comparison (GPa)
Elastic Features
Elastic Anisotropy AU
0.0720
Homogeneous Poisson ν
0.3540
Debye Temperature
266.8
K
Sound Velocity
2,423.0
m/s
Homogeneity
0.3540

Related Tasks

Related computation task IDs (2)

Citation & References

Materials Project Page
https://materialsproject.org/materials/mp-1018794
Reference Citation

The crystal structure and related material properties of Mg2Ge were obtained from the Materials Project database (MP-ID: mp-1018794, 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_Mg2Ge
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   4.73685992
_cell_length_b   4.73685992
_cell_length_c   6.09886800
_cell_angle_alpha   90.00000000
_cell_angle_beta   90.00000000
_cell_angle_gamma   119.99999886
_symmetry_Int_Tables_number   1
_chemical_formula_structural   Mg2Ge
_chemical_formula_sum   'Mg4 Ge2'
_cell_volume   118.51162522
_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
  Mg  Mg0  1  0.00000000  0.00000000  0.50000000  1.0
  Mg  Mg1  1  0.00000000  0.00000000  0.00000000  1.0
  Mg  Mg2  1  0.33333300  0.66666700  0.75000000  1.0
  Mg  Mg3  1  0.66666700  0.33333300  0.25000000  1.0
  Ge  Ge4  1  0.33333300  0.66666700  0.25000000  1.0
  Ge  Ge5  1  0.66666700  0.33333300  0.75000000  1.0
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