Navigation

HEAS Data Platform · Materials Science Database

SrGe2

Traditional Materials TRA Elasticity Data ELA

MP-ID: mp-7390 · Space group: P-3m1 (#164)

Basic Information

Formula
SrGe2
MP-ID
mp-7390
Elements
2
Sites
3
Density
5.0811
g/cm³
Volume
76.11
ų
Cell a
4.1319
Å
Cell b
4.1319
Å
Cell c
5.1479
Å
α Angle
90.00
°
β Angle
90.00
°
γ Angle
120.00
°
Space Group
P-3m1
Point Group
-3m
Crystal System
Trigonal
Bravais Lattice
Trigonal P
Stability
Yes
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
17.23 5.1479 4.9 (0,0,0,1)
30.42 2.9382 100.0 (1,0,-1,1)
30.42 2.9382 50.0 (1,-1,0,1)
34.86 2.5739 12.8 (0,0,0,2)
43.30 2.0895 37.0 (1,0,-1,2)
43.82 2.0660 36.9 (1,1,-2,0)
43.82 2.0660 18.5 (2,-1,-1,0)
47.42 1.9173 2.1 (2,-1,-1,1)
53.39 1.7160 2.6 (0,0,0,3)
54.28 1.6900 9.5 (0,2,-2,1)
54.28 1.6900 19.1 (2,0,-2,1)
57.17 1.6112 6.0 (1,1,-2,2)
57.17 1.6112 12.0 (2,-1,-1,2)
59.77 1.5473 16.2 (1,0,-1,3)
63.30 1.4691 7.8 (2,0,-2,2)
63.30 1.4691 3.9 (2,-2,0,2)
71.47 1.3200 6.6 (2,-1,-1,3)
72.22 1.3081 8.1 (2,1,-3,1)
72.22 1.3081 16.1 (3,-1,-2,1)
77.00 1.2384 7.7 (2,0,-2,3)
79.08 1.2110 9.6 (1,0,-1,4)
80.17 1.1973 2.0 (1,2,-3,2)
80.17 1.1973 4.0 (2,1,-3,2)
80.17 1.1973 5.9 (3,-1,-2,2)
Get direct link

Energy Properties

Formation Energy/atom
-0.55810
eV/atom
Energy/atom
-14.85464
eV/atom
Energy above Hull
0.0000
eV/atom
Uncorrected Energy
-14.8546
eV/atom
Volume/atom
25.37
ų
c/a Ratio
1.2459

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

KVRH
46.921
GPa
GVRH
25.775
GPa
Young's Modulus E
65.357
GPa
Poisson Ratio ν
0.268
Pugh Ratio K/G
1.820
Vickers Hardness Est.
3.640
GPa
Ductility
Brittle
Anisotropy
1.675
Lame λ
29.738
GPa

Feature Analysis

Composition Overview

Element Composition (atomic fraction)
Composition Info
Major / Matrix Element
Ge · 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
0.623
Family
Binary Alloy
Matrix Element
Ge · 0.667

Elasticity Features

Elastic Modulus Comparison (GPa)
Elastic Features
Elastic Anisotropy AU
1.6750
Homogeneous Poisson ν
0.2680
Debye Temperature
297.1
K
Sound Velocity
2,505.8
m/s
Homogeneity
0.2680

Related Tasks

Citation & References

Materials Project Page
https://materialsproject.org/materials/mp-7390
Reference Citation

The crystal structure and related material properties of SrGe2 were obtained from the Materials Project database (MP-ID: mp-7390, 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_SrGe2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   4.13190910
_cell_length_b   4.13190929
_cell_length_c   5.14788355
_cell_angle_alpha   90.00000000
_cell_angle_beta   90.00000000
_cell_angle_gamma   119.99999032
_symmetry_Int_Tables_number   1
_chemical_formula_structural   SrGe2
_chemical_formula_sum   'Sr1 Ge2'
_cell_volume   76.11336550
_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
  Sr  Sr0  1  0.00000000  0.00000000  0.00000000  1.0
  Ge  Ge1  1  0.66666700  0.33333300  0.59503290  1.0
  Ge  Ge2  1  0.33333300  0.66666700  0.40496710  1.0
Get direct link