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Sr2Cd2Cu(SO)2

High-Entropy Materials HEA

MP-ID: mp-1094069 · Space group: I4/mmm (#139)

Basic Information

Formula
Sr2Cd2Cu(SO)2
MP-ID
mp-1094069
Elements
5
Sites
9
Density
5.3799
g/cm³
Volume
172.77
ų
Cell a
10.8577
Å
Cell b
10.8577
Å
Cell c
10.8577
Å
α Angle
158.44
°
β Angle
158.44
°
γ Angle
30.68
°
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
8.44 10.4709 7.9 (1,1,-1)
16.94 5.2355 41.9 (2,2,-2)
22.29 3.9877 3.8 (1,0,-1)
25.52 3.4903 24.2 (3,3,-3)
30.66 2.9159 36.8 (3,2,-3)
31.14 2.8723 1.1 (1,-1,0)
32.32 2.7699 100.0 (2,0,-1)
34.26 2.6177 10.8 (4,4,-4)
35.65 2.5182 65.5 (3,1,-2)
37.33 2.4089 51.4 (4,3,-4)
40.68 2.2178 8.2 (4,2,-3)
43.20 2.0942 2.1 (5,5,-5)
44.62 2.0310 54.3 (1,-1,1)
44.89 2.0191 3.1 (5,4,-5)
46.96 1.9348 22.2 (5,3,-4)
48.05 1.8935 11.0 (3,1,-3)
50.43 1.8098 1.1 (2,-1,-1)
52.10 1.7554 14.6 (4,2,-4)
52.43 1.7452 12.1 (6,6,-6)
53.13 1.7239 2.0 (6,5,-6)
54.20 1.6922 11.4 (6,4,-5)
55.11 1.6666 13.6 (4,1,-3)
57.43 1.6047 8.5 (5,3,-5)
59.54 1.5527 24.8 (5,2,-4)
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Energy Properties

Formation Energy/atom
-1.44210
eV/atom
Energy/atom
-4.50597
eV/atom
Energy above Hull
0.3092
eV/atom
Uncorrected Energy
-4.2415
eV/atom
Volume/atom
19.20
ų
c/a Ratio
1.0000

Electronic Properties

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

Magnetic Properties

Magnetic
No
Total Mag. Moment
0.0126
μB
Mag. Ordering
NM
Mag. Sites
0
Magnetization/Volume
0.000070
μB/ų

Elastic Properties

Elastic data not available

Feature Analysis

Composition Overview

Element Composition (atomic fraction)
Composition Info
Major / Matrix Element
Sr · 0.222
Element Family
Alkali-AlkEarth
Solute Fraction
0.778
Interstitial Fraction
0.000

High-Entropy Alloy Features

Composite Radar (normalized)
Element-Class Share
Mix Entropy ΔS/R
1.5811
HEA criterion (>1.0 = high entropy)
Mix Entropy ΔS
13.1452
J/mol·K
Ω Parameter
0.6441
Ω > 1.1 favors solid solution
Atomic Size Mismatch δr
38.424%
δr < 6.6% favors single-phase solid solution
Electronegativity Diff Δχ
0.8858
smaller = more stable mixing
VEC
6.556
valence electron concentration, affects phase stability
Mix Enthalpy ΔH_mix
-12.546
kJ/mol; negative = exothermic mixing
Entropy Norm
0.9824
SS Former
0
Phase Tendency
IM

Related Tasks

Citation & References

Materials Project Page
https://materialsproject.org/materials/mp-1094069
Reference Citation

The crystal structure and related material properties of Sr2Cd2Cu(SO)2 were obtained from the Materials Project database (MP-ID: mp-1094069, 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_Sr2Cd2Cu(SO)2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   10.85773349
_cell_length_b   10.85773349
_cell_length_c   10.85773349
_cell_angle_alpha   158.43816629
_cell_angle_beta   158.43816629
_cell_angle_gamma   30.67858931
_symmetry_Int_Tables_number   1
_chemical_formula_structural   Sr2Cd2Cu(SO)2
_chemical_formula_sum   'Sr2 Cd2 Cu1 S2 O2'
_cell_volume   172.76615443
_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
  Sr  Sr0  1  0.57848300  0.57848300  0.00000000  1.0
  Sr  Sr1  1  0.42151700  0.42151700  0.00000000  1.0
  Cd  Cd2  1  0.25000000  0.75000000  0.50000000  1.0
  Cd  Cd3  1  0.75000000  0.25000000  0.50000000  1.0
  Cu  Cu4  1  0.00000000  0.00000000  0.00000000  1.0
  S  S5  1  0.85544400  0.85544400  0.00000000  1.0
  S  S6  1  0.14455600  0.14455600  0.00000000  1.0
  O  O7  1  0.00000000  0.50000000  0.50000000  1.0
  O  O8  1  0.50000000  0.00000000  0.50000000  1.0
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