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Sr8Ga7

Traditional Materials TRA

MP-ID: mp-30667 · Space group: P2_13 (#198)

Materials Project API

Basic Information

Formula
Sr8Ga7
MP-ID
mp-30667
Elements
2
Sites
60
Density
4.0985
g/cm³
Volume
1,926.96
ų
Cell a
12.4439
Å
Cell b
12.4439
Å
Cell c
12.4439
Å
α Angle
90.00
°
β Angle
90.00
°
γ Angle
90.00
°
Space Group
P2_13
Point Group
23
Crystal System
Cubic
Bravais Lattice
cP
Stability
Yes
Packing Fraction
0.5236

X-ray Diffraction

Diffraction Pattern
X-axis: 2θ (°); Y-axis: relative intensity; Cu Kα ; λ=1.5418 Å
Diffraction Peaks (Top 24)
2θd (Å)Ihkl
10.05 8.7992 2.3 (1,1,0)
12.32 7.1845 7.0 (1,1,1)
14.23 6.2220 9.9 (2,0,0)
15.93 5.5651 18.0 (2,1,0)
17.46 5.0802 5.4 (2,1,1)
20.18 4.3996 2.0 (2,2,0)
22.60 3.9351 2.1 (3,1,0)
23.71 3.7520 2.6 (3,1,1)
24.78 3.5923 15.3 (2,2,2)
25.81 3.4513 17.2 (3,2,0)
26.81 3.3258 54.5 (3,2,1)
28.70 3.1110 26.4 (4,0,0)
29.60 3.0181 100.0 (3,2,2)
30.48 2.9331 84.2 (4,1,1)
31.33 2.8548 2.7 (3,3,1)
32.17 2.7826 33.4 (4,2,0)
32.99 2.7155 30.7 (4,2,1)
33.79 2.6531 7.5 (3,3,2)
35.34 2.5401 18.1 (4,2,2)
36.09 2.4888 32.5 (4,3,0)
36.83 2.4405 62.8 (4,3,1)
37.56 2.3948 5.8 (5,1,1)
38.98 2.3108 67.2 (5,2,0)
39.67 2.2719 5.0 (5,2,1)
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Energy Properties

Formation Energy/atom
-0.46025
eV/atom
Energy/atom
-13.87790
eV/atom
Energy above Hull
0.0000
eV/atom
Uncorrected Energy
-13.8779
eV/atom
Volume/atom
32.12
ų
c/a Ratio
1.0000

Electronic Properties

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

Magnetic Properties

Magnetic
Yes
Total Mag. Moment
11.8701
μB
Mag. Ordering
Unknown
Mag. Sites
0
Magnetization/Volume
0.006160
μB/ų

Elastic Properties

Elastic data not available

Feature Analysis

Composition Overview

Element Composition (atomic fraction)
Composition Info
Major / Matrix Element
Sr · 0.533
Element Family
N/A
Solute Fraction
0.467
Interstitial Fraction
0.000

Traditional Material Features

ROM Blended-Feature Radar
Rating & Classification
Tier
A
Score
0.637
Family
Binary Alloy
Matrix Element
Sr · 0.533

Related Tasks

Related computation task IDs (1)
aaaektij

Citation & References

Materials Project Page
https://materialsproject.org/materials/mp-30667
Reference Citation

The crystal structure and related material properties of Sr8Ga7 were obtained from the Materials Project database (MP-ID: mp-30667, 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

Loading 3D structure…

Style: Ball & Stick
Raw CIF Data 
# generated using pymatgen
data_Sr8Ga7
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   12.44393140
_cell_length_b   12.44393140
_cell_length_c   12.44393140
_cell_angle_alpha   90.00000000
_cell_angle_beta   90.00000000
_cell_angle_gamma   90.00000000
_symmetry_Int_Tables_number   1
_chemical_formula_structural   Sr8Ga7
_chemical_formula_sum   'Sr32 Ga28'
_cell_volume   1926.96055578
_cell_formula_units_Z   4
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  0.18547253  0.18547253  0.18547253  1.0
  Sr  Sr1  1  0.31452747  0.81452747  0.68547253  1.0
  Sr  Sr2  1  0.68547253  0.31452747  0.81452747  1.0
  Sr  Sr3  1  0.81452747  0.68547253  0.31452747  1.0
  Sr  Sr4  1  0.81272207  0.81272207  0.81272207  1.0
  Sr  Sr5  1  0.68727793  0.18727793  0.31272207  1.0
  Sr  Sr6  1  0.31272207  0.68727793  0.18727793  1.0
  Sr  Sr7  1  0.18727793  0.31272207  0.68727793  1.0
  Sr  Sr8  1  0.52163986  0.70420908  0.93831332  1.0
  Sr  Sr9  1  0.93831332  0.52163986  0.70420908  1.0
  Sr  Sr10  1  0.70420908  0.93831332  0.52163986  1.0
  Sr  Sr11  1  0.79579092  0.06168668  0.02163986  1.0
  Sr  Sr12  1  0.43831332  0.97836014  0.29579092  1.0
  Sr  Sr13  1  0.29579092  0.43831332  0.97836014  1.0
  Sr  Sr14  1  0.56168668  0.47836014  0.20420908  1.0
  Sr  Sr15  1  0.06168668  0.02163986  0.79579092  1.0
  Sr  Sr16  1  0.20420908  0.56168668  0.47836014  1.0
  Sr  Sr17  1  0.02163986  0.79579092  0.06168668  1.0
  Sr  Sr18  1  0.47836014  0.20420908  0.56168668  1.0
  Sr  Sr19  1  0.97836014  0.29579092  0.43831332  1.0
  Sr  Sr20  1  0.79882136  0.55760424  0.00464625  1.0
  Sr  Sr21  1  0.00464625  0.79882136  0.55760424  1.0
  Sr  Sr22  1  0.55760424  0.00464625  0.79882136  1.0
  Sr  Sr23  1  0.94239576  0.99535375  0.29882136  1.0
  Sr  Sr24  1  0.50464625  0.70117864  0.44239576  1.0
  Sr  Sr25  1  0.44239576  0.50464625  0.70117864  1.0
  Sr  Sr26  1  0.49535375  0.20117864  0.05760424  1.0
  Sr  Sr27  1  0.99535375  0.29882136  0.94239576  1.0
  Sr  Sr28  1  0.05760424  0.49535375  0.20117864  1.0
  Sr  Sr29  1  0.29882136  0.94239576  0.99535375  1.0
  Sr  Sr30  1  0.20117864  0.05760424  0.49535375  1.0
  Sr  Sr31  1  0.70117864  0.44239576  0.50464625  1.0
  Ga  Ga32  1  0.43332094  0.43332094  0.43332094  1.0
  Ga  Ga33  1  0.06667906  0.56667906  0.93332094  1.0
  Ga  Ga34  1  0.93332094  0.06667906  0.56667906  1.0
  Ga  Ga35  1  0.56667906  0.93332094  0.06667906  1.0
  Ga  Ga36  1  0.74958516  0.68743320  0.57964787  1.0
  Ga  Ga37  1  0.57964787  0.74958516  0.68743320  1.0
  Ga  Ga38  1  0.68743320  0.57964787  0.74958516  1.0
  Ga  Ga39  1  0.81256680  0.42035213  0.24958516  1.0
  Ga  Ga40  1  0.07964787  0.75041484  0.31256680  1.0
  Ga  Ga41  1  0.31256680  0.07964787  0.75041484  1.0
  Ga  Ga42  1  0.92035213  0.25041484  0.18743320  1.0
  Ga  Ga43  1  0.42035213  0.24958516  0.81256680  1.0
  Ga  Ga44  1  0.18743320  0.92035213  0.25041484  1.0
  Ga  Ga45  1  0.24958516  0.81256680  0.42035213  1.0
  Ga  Ga46  1  0.25041484  0.18743320  0.92035213  1.0
  Ga  Ga47  1  0.75041484  0.31256680  0.07964787  1.0
  Ga  Ga48  1  0.75534598  0.19351464  0.57444299  1.0
  Ga  Ga49  1  0.57444299  0.75534598  0.19351464  1.0
  Ga  Ga50  1  0.19351464  0.57444299  0.75534598  1.0
  Ga  Ga51  1  0.30648536  0.42555701  0.25534598  1.0
  Ga  Ga52  1  0.07444299  0.74465402  0.80648536  1.0
  Ga  Ga53  1  0.80648536  0.07444299  0.74465402  1.0
  Ga  Ga54  1  0.92555701  0.24465402  0.69351464  1.0
  Ga  Ga55  1  0.42555701  0.25534598  0.30648536  1.0
  Ga  Ga56  1  0.69351464  0.92555701  0.24465402  1.0
  Ga  Ga57  1  0.25534598  0.30648536  0.42555701  1.0
  Ga  Ga58  1  0.24465402  0.69351464  0.92555701  1.0
  Ga  Ga59  1  0.74465402  0.80648536  0.07444299  1.0
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