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Er3Sc2InSb2

High-Entropy Materials HEA

MP-ID: mp-3254328 · Space group: Ama2 (#40)

Basic Information

Formula
Er3Sc2InSb2
MP-ID
mp-3254328
Elements
4
Sites
16
Density
7.7851
g/cm³
Volume
405.28
ų
Cell a
8.6957
Å
Cell b
8.7103
Å
Cell c
6.1820
Å
α Angle
90.00
°
β Angle
90.00
°
γ Angle
120.06
°
Space Group
Ama2
Point Group
mm2
Crystal System
Orthorhombic
Bravais Lattice
Orthorhombic P
Stability
Yes
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
11.74 7.5391 9.8 (0,1,0)
11.76 7.5265 4.6 (1,0,0)
20.39 4.3551 15.3 (1,-2,0)
20.43 4.3478 33.7 (1,1,0)
25.01 3.5604 1.4 (1,-2,1)
25.04 3.5564 2.0 (1,1,1)
28.88 3.0910 90.6 (0,0,2)
31.28 2.8600 6.3 (0,1,2)
31.28 2.8600 6.3 (1,-1,2)
31.28 2.8593 6.2 (1,0,2)
31.38 2.8509 5.9 (1,-3,0)
31.38 2.8509 5.9 (2,-3,0)
31.42 2.8475 8.9 (1,2,0)
31.42 2.8475 8.9 (3,-2,0)
31.44 2.8454 16.1 (2,1,0)
34.65 2.5889 100.0 (1,-3,1)
34.68 2.5863 95.4 (1,2,1)
34.71 2.5848 92.2 (2,1,1)
35.62 2.5207 26.8 (1,-2,2)
35.64 2.5193 56.4 (1,1,2)
35.73 2.5130 14.6 (0,3,0)
35.73 2.5130 14.6 (3,-3,0)
35.79 2.5088 14.9 (3,0,0)
41.54 2.1739 1.8 (2,2,0)
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Energy Properties

Formation Energy/atom
-0.86365
eV/atom
Energy/atom
-25.68421
eV/atom
Energy above Hull
0.0000
eV/atom
Uncorrected Energy
-25.6842
eV/atom
Volume/atom
25.33
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
3.9250
μB
Mag. Ordering
FM
Mag. Sites
10
Magnetization/Volume
0.009680
μB/ų

Elastic Properties

Elastic data not available

Feature Analysis

Composition Overview

Element Composition (atomic fraction)
Composition Info
Major / Matrix Element
Er · 0.375
Element Family
Lanthanide
Solute Fraction
0.625
Interstitial Fraction
0.000

High-Entropy Alloy Features

Composite Radar (normalized)
Element-Class Share
Mix Entropy ΔS/R
1.3209
HEA criterion (>1.0 = high entropy)
Mix Entropy ΔS
10.9819
J/mol·K
Ω Parameter
1.2003
Ω > 1.1 favors solid solution
Atomic Size Mismatch δr
7.175%
δr < 6.6% favors single-phase solid solution
Electronegativity Diff Δχ
0.3378
smaller = more stable mixing
VEC
6.875
valence electron concentration, affects phase stability
Mix Enthalpy ΔH_mix
-12.891
kJ/mol; negative = exothermic mixing
Entropy Norm
0.9528
SS Former
0
Phase Tendency
IM

Related Tasks

Related computation task IDs (1)

Citation & References

Materials Project Page
https://materialsproject.org/materials/mp-3254328
Reference Citation

The crystal structure and related material properties of Er3Sc2InSb2 were obtained from the Materials Project database (MP-ID: mp-3254328, 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_Er3Sc2InSb2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   8.69566485
_cell_length_b   8.71025854
_cell_length_c   6.18203905
_cell_angle_alpha   90.00000000
_cell_angle_beta   90.00000000
_cell_angle_gamma   120.05552416
_symmetry_Int_Tables_number   1
_chemical_formula_structural   Er3Sc2InSb2
_chemical_formula_sum   'Er6 Sc4 In2 Sb4'
_cell_volume   405.27793118
_cell_formula_units_Z   2
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
  Er  Er0  1  0.00285391  0.75819354  0.75000000  1.0
  Er  Er1  1  0.00285391  0.24465937  0.25000000  1.0
  Er  Er2  1  0.75712676  0.75983544  0.25000000  1.0
  Er  Er3  1  0.75712676  0.99729132  0.75000000  1.0
  Er  Er4  1  0.24189534  0.23654593  0.75000000  1.0
  Er  Er5  1  0.24189534  0.00534841  0.25000000  1.0
  Sc  Sc6  1  0.33402597  0.66701349  0.50000000  1.0
  Sc  Sc7  1  0.66383956  0.33191928  0.00000000  1.0
  Sc  Sc8  1  0.66383956  0.33191928  0.50000000  1.0
  Sc  Sc9  1  0.33402597  0.66701349  0.00000000  1.0
  In  In10  1  0.39835424  0.99774548  0.75000000  1.0
  In  In11  1  0.39835424  0.40060876  0.25000000  1.0
  Sb  Sb12  1  0.99908445  0.60637481  0.25000000  1.0
  Sb  Sb13  1  0.99908445  0.39270964  0.75000000  1.0
  Sb  Sb14  1  0.60281975  0.60244322  0.75000000  1.0
  Sb  Sb15  1  0.60281975  0.00037654  0.25000000  1.0
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