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Ga2Cu(SO)2

High-Entropy Materials HEA

MP-ID: mp-1147755 · Space group: I4/mmm (#139)

Basic Information

Formula
Ga2Cu(SO)2
MP-ID
mp-1147755
Elements
4
Sites
7
Density
4.0095
g/cm³
Volume
123.88
ų
Cell a
8.0485
Å
Cell b
8.0485
Å
Cell c
8.0485
Å
α Angle
150.79
°
β Angle
150.79
°
γ Angle
41.78
°
Space Group
I4/mmm
Point Group
4/mmm
Crystal System
Tetragonal
Bravais Lattice
Tetragonal I
Stability
No
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
11.77 7.5194 55.4 (1,1,-1)
22.69 3.9187 100.0 (1,0,-1)
23.66 3.7597 90.5 (2,2,-2)
31.16 2.8701 4.0 (1,-1,0)
33.42 2.6814 76.2 (2,0,-1)
37.21 2.4166 22.6 (3,2,-3)
39.50 2.2813 44.7 (3,1,-2)
44.65 2.0295 69.8 (1,-1,1)
46.34 1.9594 7.7 (2,0,-2)
47.91 1.8988 13.6 (4,3,-4)
48.20 1.8879 71.0 (4,2,-3)
48.42 1.8799 14.2 (4,4,-4)
50.65 1.8021 20.1 (2,-1,-1)
51.15 1.7859 42.1 (3,1,-3)
58.71 1.5726 10.3 (5,3,-4)
59.48 1.5541 10.4 (4,1,-3)
61.68 1.5039 1.2 (5,5,-5)
64.99 1.4351 20.8 (2,-2,0)
66.31 1.4096 3.0 (3,-1,-1)
67.56 1.3866 9.0 (5,2,-4)
67.97 1.3791 18.8 (5,3,-5)
69.79 1.3475 3.6 (2,-1,-2)
70.20 1.3407 14.8 (4,0,-2)
70.72 1.3321 7.6 (6,4,-5)
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Energy Properties

Formation Energy/atom
-0.18400
eV/atom
Energy/atom
-4.23058
eV/atom
Energy above Hull
1.2737
eV/atom
Uncorrected Energy
-3.8906
eV/atom
Volume/atom
17.70
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
1.3787
μB
Mag. Ordering
FM
Mag. Sites
3
Magnetization/Volume
0.011130
μB/ų

Elastic Properties

Elastic data not available

Feature Analysis

Composition Overview

Element Composition (atomic fraction)
Composition Info
Major / Matrix Element
Ga · 0.286
Element Family
PostTransition-Noble
Solute Fraction
0.714
Interstitial Fraction
0.000

High-Entropy Alloy Features

Composite Radar (normalized)
Element-Class Share
Mix Entropy ΔS/R
1.3518
HEA criterion (>1.0 = high entropy)
Mix Entropy ΔS
11.2387
J/mol·K
Ω Parameter
0.2225
Ω > 1.1 favors solid solution
Atomic Size Mismatch δr
29.166%
δr < 6.6% favors single-phase solid solution
Electronegativity Diff Δχ
0.6646
smaller = more stable mixing
VEC
5.286
valence electron concentration, affects phase stability
Mix Enthalpy ΔH_mix
-20.563
kJ/mol; negative = exothermic mixing
Entropy Norm
0.9751
SS Former
0
Phase Tendency
AM

Related Tasks

Citation & References

Materials Project Page
https://materialsproject.org/materials/mp-1147755
Reference Citation

The crystal structure and related material properties of Ga2Cu(SO)2 were obtained from the Materials Project database (MP-ID: mp-1147755, 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_Ga2Cu(SO)2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   8.04852482
_cell_length_b   8.04852482
_cell_length_c   8.04852482
_cell_angle_alpha   150.78997301
_cell_angle_beta   150.78997301
_cell_angle_gamma   41.78303079
_symmetry_Int_Tables_number   1
_chemical_formula_structural   Ga2Cu(SO)2
_chemical_formula_sum   'Ga2 Cu1 S2 O2'
_cell_volume   123.88170982
_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
  Ga  Ga0  1  0.25000000  0.75000000  0.50000000  1.0
  Ga  Ga1  1  0.75000000  0.25000000  0.50000000  1.0
  Cu  Cu2  1  0.00000000  0.00000000  0.00000000  1.0
  S  S3  1  0.83662800  0.83662800  0.00000000  1.0
  S  S4  1  0.16337200  0.16337200  0.00000000  1.0
  O  O5  1  0.00000000  0.50000000  0.50000000  1.0
  O  O6  1  0.50000000  0.00000000  0.50000000  1.0
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