Navigation

HEAS Data Platform · Materials Science Database

GeAs2

Elasticity Data ELA

MP-ID: mp-17524 · Space group: Pbam (#55)

Basic Information

Formula
GeAs2
MP-ID
mp-17524
Elements
2
Sites
24
Density
4.8882
g/cm³
Volume
604.62
ų
Cell a
3.7358
Å
Cell b
10.5975
Å
Cell c
15.2723
Å
α Angle
90.00
°
β Angle
90.00
°
γ Angle
90.00
°
Space Group
Pbam
Point Group
mmm
Crystal System
Orthorhombic
Bravais Lattice
Orthorhombic P
Stability
Yes
Packing Fraction
0.5240

X-ray Diffraction

Diffraction Pattern
X-axis: 2θ (°); Y-axis: relative intensity; CuKa ; λ=1.5406 Å
Diffraction Peaks (Top 24)
2θd (Å)Ihkl
10.16 8.7066 15.1 (0,1,1)
11.59 7.6361 19.8 (0,0,2)
14.30 6.1953 12.2 (0,1,2)
16.73 5.2987 5.9 (0,2,0)
19.34 4.5888 2.6 (0,1,3)
23.30 3.8181 7.3 (0,0,4)
24.24 3.6710 15.9 (0,2,3)
24.79 3.5921 29.7 (0,1,4)
25.89 3.4416 12.2 (0,3,1)
27.89 3.1992 2.6 (1,1,2)
28.82 3.0977 31.3 (0,2,4)
29.25 3.0532 3.1 (1,2,0)
29.84 2.9940 100.0 (1,2,1)
30.46 2.9350 2.9 (0,1,5)
30.81 2.9022 5.2 (0,3,3)
30.86 2.8971 1.1 (1,1,3)
31.56 2.8350 26.3 (1,2,2)
33.56 2.6702 2.7 (1,0,4)
33.87 2.6463 1.8 (0,2,5)
34.25 2.6184 2.0 (1,2,3)
34.59 2.5929 10.9 (0,3,4)
34.64 2.5893 7.7 (1,1,4)
35.26 2.5454 1.2 (0,0,6)
35.88 2.5030 3.4 (0,4,2)
Get direct link

Energy Properties

Formation Energy/atom
-0.06242
eV/atom
Energy/atom
-14.49144
eV/atom
Energy above Hull
0.0000
eV/atom
Uncorrected Energy
-14.4914
eV/atom
Volume/atom
25.19
ų
c/a Ratio
-

Electronic Properties

Metallic
Non-metal
Band Gap
0.720
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
13.477
GPa
GVRH
10.712
GPa
Young's Modulus E
25.405
GPa
Poisson Ratio ν
0.186
Pugh Ratio K/G
1.258
Vickers Hardness Est.
3.121
GPa
Ductility
Ductile
Anisotropy
7.814
Lame λ
6.336
GPa

Feature Analysis

Composition Overview

Element Composition (atomic fraction)
Composition Info
Major / Matrix Element
As · 0.667
Element Family
Metalloid-Nonmetal
Solute Fraction
0.333
Interstitial Fraction
0.000

Elasticity Features

Elastic Modulus Comparison (GPa)
Elastic Features
Elastic Anisotropy AU
7.8140
Homogeneous Poisson ν
0.1860
Debye Temperature
240.6
K
Sound Velocity
1,631.8
m/s
Homogeneity
0.1860

Related Tasks

Citation & References

Materials Project Page
https://materialsproject.org/materials/mp-17524
Reference Citation

The crystal structure and related material properties of GeAs2 were obtained from the Materials Project database (MP-ID: mp-17524, database version v2026.09.28).

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_GeAs2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   3.73576641
_cell_length_b   10.59744722
_cell_length_c   15.27225394
_cell_angle_alpha   90.00000000
_cell_angle_beta   90.00000000
_cell_angle_gamma   90.00000000
_symmetry_Int_Tables_number   1
_chemical_formula_structural   GeAs2
_chemical_formula_sum   'Ge8 As16'
_cell_volume   604.62223148
_cell_formula_units_Z   8
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  -0.00000000  0.57718836  0.85139974  1.0
  Ge  Ge1  1  0.00000000  0.42281164  0.14860026  1.0
  Ge  Ge2  1  -0.00000000  0.07718836  0.64860026  1.0
  Ge  Ge3  1  -0.00000000  0.92281164  0.35139974  1.0
  Ge  Ge4  1  0.50000000  0.79304435  0.72959325  1.0
  Ge  Ge5  1  0.50000000  0.20695565  0.27040675  1.0
  Ge  Ge6  1  0.50000000  0.29304435  0.77040675  1.0
  Ge  Ge7  1  0.50000000  0.70695565  0.22959325  1.0
  As  As8  1  -0.00000000  0.64946237  0.69981318  1.0
  As  As9  1  -0.00000000  0.35053763  0.30018682  1.0
  As  As10  1  -0.00000000  0.14946237  0.80018682  1.0
  As  As11  1  -0.00000000  0.85053763  0.19981318  1.0
  As  As12  1  0.00000000  0.76117630  0.95003863  1.0
  As  As13  1  -0.00000000  0.23882370  0.04996137  1.0
  As  As14  1  -0.00000000  0.26117630  0.54996137  1.0
  As  As15  1  -0.00000000  0.73882370  0.45003863  1.0
  As  As16  1  0.50000000  0.88244865  0.88194717  1.0
  As  As17  1  0.50000000  0.11755135  0.11805283  1.0
  As  As18  1  0.50000000  0.38244865  0.61805283  1.0
  As  As19  1  0.50000000  0.61755135  0.38194717  1.0
  As  As20  1  0.50000000  0.94178233  0.60615475  1.0
  As  As21  1  0.50000000  0.05821767  0.39384525  1.0
  As  As22  1  0.50000000  0.44178333  0.89384525  1.0
  As  As23  1  0.50000000  0.55821767  0.10615475  1.0
Get direct link