Ag3Ge

Traditional Materials TRA Elasticity Data ELA

MP-ID: mp-985283 · Space group: Fm-3m (#225)

Materials Project API

Basic Information

Formula

Ag3Ge

MP-ID

mp-985283

Elements

Sites

Density

9.0163

g/cm³

Volume

72.98

Å³

Cell a

4.6907

Cell b

4.6907

Cell c

4.6907

α Angle

60.00

β Angle

60.00

γ Angle

60.00

Space Group

Fm-3m

Point Group

m-3m

Crystal System

Cubic

Bravais Lattice

Stability

Packing Fraction

0.7405

X-ray Diffraction

Diffraction Pattern

Target / Radiation

X-axis: 2θ (°); Y-axis: relative intensity; Cu Kα ; λ=1.5418 Å

Diffraction Peaks (Top 6)

2θ	d (Å)	I	hkl
23.22	3.8299	2.0	(1,1,1)
26.88	3.3168	1.1	(1,1,0)
38.38	2.3453	100.0	(2,1,1)
55.40	1.6584	16.4	(2,2,0)
69.41	1.3541	32.4	(3,3,2)
82.21	1.1727	10.2	(4,2,2)

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Energy Properties

Formation Energy/atom

0.10020

eV/atom

Energy/atom

-19.38470

eV/atom

Energy above Hull

0.1002

eV/atom

Uncorrected Energy

-3.1800

eV/atom

Volume/atom

18.24

Å³

c/a Ratio

1.0000

Electronic Properties

Metallic

Metal

Band Gap

Direct Gap

CBM

N/A

Magnetic Properties

Magnetic

Total Mag. Moment

0.0002

μB

Mag. Ordering

Mag. Sites

Magnetization/Volume

0.000000

μB/Å³

Elastic Properties

K_VRH

82.772

GPa

G_VRH

10.842

GPa

Young's Modulus E

31.165

GPa

Poisson Ratio ν

0.437

Pugh Ratio K/G

7.634

Vickers Hardness Est.

0.000

GPa

Ductility

Brittle

Anisotropy

40.721

Lame λ

75.544

GPa

Feature Analysis

Composition Overview

Element Composition (atomic fraction)

Composition Info

Major / Matrix Element

Ag · 0.750

Element Family

N/A

Solute Fraction

0.250

Interstitial Fraction

0.000

Traditional Material Features

ROM Blended-Feature Radar

Rating & Classification

Tier

Score

0.820

Family

Binary Alloy

Matrix Element

Ag · 0.750

Elasticity Features

Elastic Modulus Comparison (GPa)

Elastic Features

Elastic Anisotropy A^U

40.7210

Homogeneous Poisson ν

0.4370

Debye Temperature

141.1

Sound Velocity

1,247.6

m/s

Homogeneity

0.4370

Related Tasks

Related computation task IDs (5)

aaadhpru aaadobqp aaadwmos aaaevlhu aaafczfb

Citation & References

Materials Project Page

https://materialsproject.org/materials/mp-985283

Reference Citation

The crystal structure and related material properties of Ag3Ge were obtained from the Materials Project database (MP-ID: mp-985283, 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

3D Crystal Structure Rendering

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Raw CIF Data

# generated using pymatgen
data_Ag3Ge
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   4.69065223
_cell_length_b   4.69065223
_cell_length_c   4.69065223
_cell_angle_alpha   60.00000000
_cell_angle_beta   60.00000000
_cell_angle_gamma   60.00000000
_symmetry_Int_Tables_number   1
_chemical_formula_structural   Ag3Ge
_chemical_formula_sum   'Ag3 Ge1'
_cell_volume   72.97678178
_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
  Ag  Ag0  1  0.25000000  0.25000000  0.25000000  1.0
  Ag  Ag1  1  0.75000000  0.75000000  0.75000000  1.0
  Ag  Ag2  1  0.50000000  0.50000000  0.50000000  1.0
  Ge  Ge3  1  0.00000000  0.00000000  0.00000000  1.0

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