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CsCeMg14O16

High-Entropy Materials HEA

MP-ID: mp-1034728 · Space group: P4/mmm (#123)

Basic Information

Formula
CsCeMg14O16
MP-ID
mp-1034728
Elements
4
Sites
32
Density
3.9429
g/cm³
Volume
366.09
ų
Cell a
8.9198
Å
Cell b
8.9198
Å
Cell c
4.6013
Å
α Angle
90.00
°
β Angle
90.00
°
γ Angle
90.00
°
Space Group
P4/mmm
Point Group
4/mmm
Crystal System
Tetragonal
Bravais Lattice
Tetragonal P
Stability
No
Packing Fraction
0.6800

X-ray Diffraction

Diffraction Pattern
X-axis: 2θ (°); Y-axis: relative intensity; CuKa ; λ=1.5406 Å
Diffraction Peaks (Top 24)
2θd (Å)Ihkl
14.04 6.3072 58.3 (1,1,0)
19.29 4.6013 21.0 (0,0,1)
19.91 4.4599 41.1 (2,0,0)
23.94 3.7173 48.3 (1,1,1)
27.86 3.2025 35.4 (2,0,1)
28.30 3.1536 18.0 (2,2,0)
31.72 2.8207 32.4 (3,1,0)
34.48 2.6013 55.8 (2,2,1)
37.40 2.4048 31.9 (3,1,1)
39.16 2.3007 57.8 (0,0,2)
40.45 2.2299 100.0 (4,0,0)
41.79 2.1614 8.3 (1,1,2)
43.02 2.1024 11.0 (3,3,0)
44.30 2.0446 10.2 (2,0,2)
45.18 2.0067 8.5 (4,0,1)
45.48 1.9945 8.1 (4,2,0)
47.55 1.9123 8.3 (3,3,1)
49.01 1.8586 7.8 (2,2,2)
49.83 1.8300 13.5 (4,2,1)
51.24 1.7828 16.4 (3,1,2)
52.30 1.7493 2.3 (5,1,0)
56.26 1.6351 10.1 (5,1,1)
57.56 1.6012 63.8 (4,0,2)
58.54 1.5768 28.8 (4,4,0)
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Energy Properties

Formation Energy/atom
-2.67305
eV/atom
Energy/atom
-6.07426
eV/atom
Energy above Hull
0.3574
eV/atom
Uncorrected Energy
-5.7308
eV/atom
Volume/atom
11.44
ų
c/a Ratio
0.5159

Electronic Properties

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

Magnetic Properties

Magnetic
Yes
Total Mag. Moment
0.8228
μB
Mag. Ordering
FM
Mag. Sites
1
Magnetization/Volume
0.002250
μB/ų

Elastic Properties

Elastic data not available

Feature Analysis

Composition Overview

Element Composition (atomic fraction)
Composition Info
Major / Matrix Element
O · 0.500
Element Family
Metalloid-Nonmetal
Solute Fraction
0.500
Interstitial Fraction
0.000

High-Entropy Alloy Features

Composite Radar (normalized)
Element-Class Share
Mix Entropy ΔS/R
0.9249
HEA criterion (>1.0 = high entropy)
Mix Entropy ΔS
7.6892
J/mol·K
Ω Parameter
4.1655
Ω > 1.1 favors solid solution
Atomic Size Mismatch δr
49.720%
δr < 6.6% favors single-phase solid solution
Electronegativity Diff Δχ
1.0911
smaller = more stable mixing
VEC
3.000
valence electron concentration, affects phase stability
Mix Enthalpy ΔH_mix
-0.875
kJ/mol; negative = exothermic mixing
Entropy Norm
0.6671
SS Former
0
Phase Tendency
IM

Related Tasks

Related computation task IDs (2)

Citation & References

Materials Project Page
https://materialsproject.org/materials/mp-1034728
Reference Citation

The crystal structure and related material properties of CsCeMg14O16 were obtained from the Materials Project database (MP-ID: mp-1034728, 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_CsCeMg14O16
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   8.91977244
_cell_length_b   8.91977244
_cell_length_c   4.60131751
_cell_angle_alpha   90.00000000
_cell_angle_beta   90.00000000
_cell_angle_gamma   90.00000000
_symmetry_Int_Tables_number   1
_chemical_formula_structural   CsCeMg14O16
_chemical_formula_sum   'Cs1 Ce1 Mg14 O16'
_cell_volume   366.09158993
_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
  Cs  Cs0  1  0.50000000  0.50000000  -0.00000000  1.0
  Ce  Ce1  1  0.00000000  0.00000000  -0.00000000  1.0
  Mg  Mg2  1  0.00000000  0.50000000  -0.00000000  1.0
  Mg  Mg3  1  0.50000000  0.00000000  -0.00000000  1.0
  Mg  Mg4  1  0.00000000  0.26667735  0.50000000  1.0
  Mg  Mg5  1  0.00000000  0.73332265  0.50000000  1.0
  Mg  Mg6  1  0.50000000  0.24309179  0.50000000  1.0
  Mg  Mg7  1  0.50000000  0.75690821  0.50000000  1.0
  Mg  Mg8  1  0.26667735  0.00000000  0.50000000  1.0
  Mg  Mg9  1  0.24309179  0.50000000  0.50000000  1.0
  Mg  Mg10  1  0.73332265  0.00000000  0.50000000  1.0
  Mg  Mg11  1  0.75690821  0.50000000  0.50000000  1.0
  Mg  Mg12  1  0.25686197  0.25686197  0.00000000  1.0
  Mg  Mg13  1  0.25686197  0.74313803  -0.00000000  1.0
  Mg  Mg14  1  0.74313803  0.25686197  0.00000000  1.0
  Mg  Mg15  1  0.74313803  0.74313803  -0.00000000  1.0
  O  O16  1  0.25881149  0.00000000  0.00000000  1.0
  O  O17  1  0.21403659  0.50000000  0.00000000  1.0
  O  O18  1  0.74118851  0.00000000  -0.00000000  1.0
  O  O19  1  0.78596341  0.50000000  -0.00000000  1.0
  O  O20  1  0.24885015  0.24885015  0.50000000  1.0
  O  O21  1  0.24885015  0.75114985  0.50000000  1.0
  O  O22  1  0.75114985  0.24885015  0.50000000  1.0
  O  O23  1  0.75114985  0.75114985  0.50000000  1.0
  O  O24  1  0.00000000  0.00000000  0.50000000  1.0
  O  O25  1  0.00000000  0.50000000  0.50000000  1.0
  O  O26  1  0.50000000  0.00000000  0.50000000  1.0
  O  O27  1  0.50000000  0.50000000  0.50000000  1.0
  O  O28  1  0.00000000  0.25881149  0.00000000  1.0
  O  O29  1  0.00000000  0.74118851  -0.00000000  1.0
  O  O30  1  0.50000000  0.21403659  0.00000000  1.0
  O  O31  1  0.50000000  0.78596341  -0.00000000  1.0
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