Ag3Ge

Traditional Materials TRA Elasticity Data ELA

MP-ID: mp-985282 · Space group: Pm-3m (#221)

Materials Project API

Basic Information

Formula

Ag3Ge

MP-ID

mp-985282

Elements

Sites

Density

9.1211

g/cm³

Volume

72.14

Å³

Cell a

4.1628

Cell b

4.1628

Cell c

4.1628

α Angle

90.00

β Angle

90.00

γ Angle

90.00

Space Group

Pm-3m

Point Group

m-3m

Crystal System

Cubic

Bravais Lattice

Stability

Packing Fraction

0.5236

X-ray Diffraction

Diffraction Pattern

Target / Radiation

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

Diffraction Peaks (Top 8)

2θ	d (Å)	I	hkl
21.34	4.1628	2.6	(1,0,0)
30.37	2.9436	2.2	(1,1,0)
37.42	2.4034	100.0	(1,1,1)
43.48	2.0814	48.4	(2,0,0)
48.93	1.8617	1.0	(2,1,0)
63.18	1.4718	30.2	(2,2,0)
75.79	1.2551	35.1	(3,1,1)
79.81	1.2017	10.2	(2,2,2)

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Energy Properties

Formation Energy/atom

0.09973

eV/atom

Energy/atom

-19.38517

eV/atom

Energy above Hull

0.0997

eV/atom

Uncorrected Energy

-3.1804

eV/atom

Volume/atom

18.03

Å³

c/a Ratio

1.0000

Electronic Properties

Metallic

Metal

Band Gap

Direct Gap

CBM

N/A

Magnetic Properties

Magnetic

Total Mag. Moment

0.0011

μB

Mag. Ordering

Mag. Sites

Magnetization/Volume

0.000020

μB/Å³

Elastic Properties

K_VRH

83.095

GPa

G_VRH

17.741

GPa

Young's Modulus E

49.687

GPa

Poisson Ratio ν

0.400

Pugh Ratio K/G

4.684

Vickers Hardness Est.

0.000

GPa

Ductility

Brittle

Anisotropy

0.170

Lame λ

71.268

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

0.1700

Homogeneous Poisson ν

0.4000

Debye Temperature

179.2

Sound Velocity

1,578.8

m/s

Homogeneity

0.4000

Related Tasks

Related computation task IDs (5)

aaaddovy aaadnzuo aaadusod aaaetfrv aaafjbbo

Citation & References

Materials Project Page

https://materialsproject.org/materials/mp-985282

Reference Citation

The crystal structure and related material properties of Ag3Ge were obtained from the Materials Project database (MP-ID: mp-985282, 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   4.16282500
_cell_length_b   4.16282500
_cell_length_c   4.16282500
_cell_angle_alpha   90.00000000
_cell_angle_beta   90.00000000
_cell_angle_gamma   90.00000000
_symmetry_Int_Tables_number   1
_chemical_formula_structural   Ag3Ge
_chemical_formula_sum   'Ag3 Ge1'
_cell_volume   72.13806058
_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  0.50000000  0.00000000  0.50000000  1.0
  Ag  Ag1  1  0.50000000  0.50000000  0.00000000  1.0
  Ag  Ag2  1  0.00000000  0.50000000  0.50000000  1.0
  Ge  Ge3  1  0.00000000  0.00000000  0.00000000  1.0

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