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Mg2Mn9O13

High-Entropy Materials HEA Traditional Materials TRA

MP-ID: mp-1045866 · Space group: P-1 (#2)

Basic Information

Formula
Mg2Mn9O13
MP-ID
mp-1045866
Elements
3
Sites
24
Density
4.7027
g/cm³
Volume
265.19
ų
Cell a
3.0387
Å
Cell b
5.3310
Å
Cell c
17.1474
Å
α Angle
97.89
°
β Angle
90.28
°
γ Angle
105.26
°
Space Group
P-1
Point Group
-1
Crystal System
Triclinic
Bravais Lattice
Triclinic P
Stability
No
Packing Fraction
0.5240

X-ray Diffraction

Diffraction Pattern
X-axis: 2θ (°); Y-axis: relative intensity; CuKa ; λ=1.5406 Å
Diffraction Peaks (Top 24)
2θd (Å)Ihkl
5.21 16.9692 3.5 (0,0,1)
10.43 8.4846 95.5 (0,0,2)
15.67 5.6564 4.1 (0,0,3)
17.42 5.0896 8.5 (0,1,0)
19.00 4.6706 5.9 (0,1,-2)
20.94 4.2423 3.6 (0,0,4)
21.61 4.1117 1.6 (0,1,2)
26.26 3.3939 1.5 (0,0,5)
29.28 3.0503 17.4 (0,1,4)
29.46 3.0319 14.6 (0,1,-5)
30.52 2.9288 3.7 (1,0,0)
30.76 2.9072 4.8 (1,0,-1)
30.90 2.8936 3.8 (1,-1,0)
31.15 2.8712 5.6 (1,-1,1)
31.21 2.8656 7.4 (1,0,1)
31.57 2.8341 8.6 (1,-1,-1)
31.89 2.8060 13.7 (1,0,-2)
32.29 2.7721 13.8 (1,-1,2)
32.77 2.7325 17.7 (1,0,2)
33.10 2.7065 18.2 (1,-1,-2)
33.78 2.6532 100.0 (0,1,5)
33.85 2.6478 9.5 (1,0,-3)
33.98 2.6384 95.8 (0,1,-6)
34.25 2.6181 10.0 (1,-1,3)
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Energy Properties

Formation Energy/atom
-2.10298
eV/atom
Energy/atom
-8.35476
eV/atom
Energy above Hull
0.1076
eV/atom
Uncorrected Energy
-7.3571
eV/atom
Volume/atom
11.05
ų
c/a Ratio
-

Electronic Properties

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

Magnetic Properties

Magnetic
Yes
Total Mag. Moment
41.0152
μB
Mag. Ordering
FM
Mag. Sites
9
Magnetization/Volume
0.154660
μB/ų

Elastic Properties

Elastic data not available

Feature Analysis

Composition Overview

Element Composition (atomic fraction)
Composition Info
Major / Matrix Element
O · 0.542
Element Family
Metalloid-Nonmetal
Solute Fraction
0.458
Interstitial Fraction
0.000

High-Entropy Alloy Features

Composite Radar (normalized)
Element-Class Share
Mix Entropy ΔS/R
0.9070
HEA criterion (>1.0 = high entropy)
Mix Entropy ΔS
7.5407
J/mol·K
Ω Parameter
3.3995
Ω > 1.1 favors solid solution
Atomic Size Mismatch δr
39.996%
δr < 6.6% favors single-phase solid solution
Electronegativity Diff Δχ
0.9655
smaller = more stable mixing
VEC
4.958
valence electron concentration, affects phase stability
Mix Enthalpy ΔH_mix
1.500
kJ/mol; negative = exothermic mixing
Entropy Norm
0.8256
SS Former
0
Phase Tendency
IM

Traditional Material Features

ROM Blended-Feature Radar
Rating & Classification
Tier
B
Score
0.496
Family
O-rich Multi-Component
Matrix Element
O · 0.542

Related Tasks

Related computation task IDs (2)

Citation & References

Materials Project Page
https://materialsproject.org/materials/mp-1045866
Reference Citation

The crystal structure and related material properties of Mg2Mn9O13 were obtained from the Materials Project database (MP-ID: mp-1045866, 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_Mg2Mn9O13
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   3.03871200
_cell_length_b   5.33097892
_cell_length_c   17.14738755
_cell_angle_alpha   97.89282879
_cell_angle_beta   90.28278470
_cell_angle_gamma   105.26277951
_symmetry_Int_Tables_number   1
_chemical_formula_structural   Mg2Mn9O13
_chemical_formula_sum   'Mg2 Mn9 O13'
_cell_volume   265.19421166
_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
  Mg  Mg0  1  0.22519800  0.43422500  0.22763500  1.0
  Mg  Mg1  1  0.77480200  0.56577500  0.77236500  1.0
  Mn  Mn2  1  0.50000000  0.00000000  0.50000000  1.0
  Mn  Mn3  1  0.64709400  0.29332500  0.04102400  1.0
  Mn  Mn4  1  0.35290600  0.70667500  0.95897600  1.0
  Mn  Mn5  1  0.75139600  0.49801600  0.41554800  1.0
  Mn  Mn6  1  0.24860400  0.50198400  0.58445200  1.0
  Mn  Mn7  1  0.94037400  0.87381500  0.12827800  1.0
  Mn  Mn8  1  0.05962600  0.12618500  0.87172200  1.0
  Mn  Mn9  1  0.99549400  0.98354300  0.32673300  1.0
  Mn  Mn10  1  0.00450600  0.01645700  0.67326700  1.0
  O  O11  1  0.00000000  0.00000000  0.00000000  1.0
  O  O12  1  0.85283300  0.70584100  0.22827800  1.0
  O  O13  1  0.14716700  0.29415900  0.77172200  1.0
  O  O14  1  0.29957800  0.59307100  0.06650200  1.0
  O  O15  1  0.70042200  0.40692900  0.93349800  1.0
  O  O16  1  0.59071500  0.18179100  0.14458300  1.0
  O  O17  1  0.40928500  0.81820900  0.85541700  1.0
  O  O18  1  0.63106300  0.26067200  0.30752600  1.0
  O  O19  1  0.36893700  0.73932800  0.69247400  1.0
  O  O20  1  0.39255500  0.78634600  0.39326200  1.0
  O  O21  1  0.60744500  0.21365400  0.60673800  1.0
  O  O22  1  0.13500000  0.25562000  0.46479200  1.0
  O  O23  1  0.86500000  0.74438000  0.53520800  1.0
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