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La2Nd3(IrO6)2

High-Entropy Materials HEA

MP-ID: mp-3291769 · Space group: Cm (#8)

Basic Information

Formula
La2Nd3(IrO6)2
MP-ID
mp-3291769
Elements
4
Sites
19
Density
7.5048
g/cm³
Volume
284.76
ų
Cell a
7.1018
Å
Cell b
7.1018
Å
Cell c
7.5773
Å
α Angle
74.80
°
β Angle
74.80
°
γ Angle
51.15
°
Space Group
Cm
Point Group
m
Crystal System
Monoclinic
Bravais Lattice
Monoclinic C
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
12.21 7.2499 39.4 (0,0,1)
14.45 6.1293 3.6 (1,1,0)
15.99 5.5421 26.7 (1,1,1)
16.16 5.4836 2.1 (1,0,0)
18.98 4.6759 2.2 (1,0,1)
18.98 4.6759 2.2 (0,1,1)
21.54 4.1264 17.8 (1,1,-1)
21.55 4.1231 7.9 (1,0,-1)
24.56 3.6250 16.6 (0,0,2)
24.63 3.6144 17.6 (1,1,2)
26.12 3.4122 3.1 (2,1,1)
26.12 3.4122 3.1 (1,2,1)
26.21 3.4003 95.7 (2,1,0)
27.68 3.2229 100.0 (1,0,2)
28.12 3.1730 8.6 (2,2,1)
29.13 3.0656 6.0 (1,-1,0)
29.14 3.0647 30.0 (2,2,0)
31.30 2.8578 11.4 (1,0,-2)
31.42 2.8475 11.8 (2,1,2)
31.65 2.8268 2.6 (2,1,-1)
31.69 2.8236 36.7 (1,-1,1)
32.14 2.7854 47.1 (1,1,-2)
32.31 2.7711 45.8 (2,2,2)
32.66 2.7418 39.8 (2,0,0)
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Energy Properties

Formation Energy/atom
-2.80196
eV/atom
Energy/atom
-19.86158
eV/atom
Energy above Hull
0.0008
eV/atom
Uncorrected Energy
-19.8616
eV/atom
Volume/atom
14.99
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
3.0000
μB
Mag. Ordering
FM
Mag. Sites
2
Magnetization/Volume
0.010540
μB/ų

Elastic Properties

Elastic data not available

Feature Analysis

Composition Overview

Element Composition (atomic fraction)
Composition Info
Major / Matrix Element
O · 0.632
Element Family
Metalloid-Nonmetal
Solute Fraction
0.368
Interstitial Fraction
0.000

High-Entropy Alloy Features

Composite Radar (normalized)
Element-Class Share
Mix Entropy ΔS/R
1.0556
HEA criterion (>1.0 = high entropy)
Mix Entropy ΔS
8.7765
J/mol·K
Ω Parameter
1.0582
Ω > 1.1 favors solid solution
Atomic Size Mismatch δr
55.782%
δr < 6.6% favors single-phase solid solution
Electronegativity Diff Δχ
1.0129
smaller = more stable mixing
VEC
4.263
valence electron concentration, affects phase stability
Mix Enthalpy ΔH_mix
-5.418
kJ/mol; negative = exothermic mixing
Entropy Norm
0.7615
SS Former
0
Phase Tendency
IM

Related Tasks

Related computation task IDs (1)

Citation & References

Materials Project Page
https://materialsproject.org/materials/mp-3291769
Reference Citation

The crystal structure and related material properties of La2Nd3(IrO6)2 were obtained from the Materials Project database (MP-ID: mp-3291769, 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_La2Nd3(IrO6)2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   7.10183232
_cell_length_b   7.10183168
_cell_length_c   7.57725036
_cell_angle_alpha   74.79549393
_cell_angle_beta   74.79549273
_cell_angle_gamma   51.14689234
_symmetry_Int_Tables_number   1
_chemical_formula_structural   La2Nd3(IrO6)2
_chemical_formula_sum   'La2 Nd3 Ir2 O12'
_cell_volume   284.75750173
_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
  La  La0  1  0.30601457  0.30601457  0.35887958  1.0
  La  La1  1  0.99959238  0.99959238  0.50142359  1.0
  Nd  Nd2  1  0.69432438  0.69432438  0.64337543  1.0
  Nd  Nd3  1  0.69405556  0.69405556  0.16560978  1.0
  Nd  Nd4  1  0.30524594  0.30524594  0.83584910  1.0
  Ir  Ir5  1  0.75386675  0.24646958  0.99907050  1.0
  Ir  Ir6  1  0.24646958  0.75386675  0.99907050  1.0
  O  O7  1  0.09190313  0.59622013  0.58236007  1.0
  O  O8  1  0.99949801  0.99949801  0.17079290  1.0
  O  O9  1  0.40708707  0.90216745  0.42205253  1.0
  O  O10  1  0.50204622  0.50204622  0.17233077  1.0
  O  O11  1  0.09903628  0.58055732  0.07564846  1.0
  O  O12  1  0.90216745  0.40708707  0.42205253  1.0
  O  O13  1  0.00193190  0.00193190  0.82756074  1.0
  O  O14  1  0.59622013  0.09190213  0.58236007  1.0
  O  O15  1  0.49936132  0.49936132  0.82429610  1.0
  O  O16  1  0.58055732  0.09903628  0.07564846  1.0
  O  O17  1  0.42178713  0.89883488  0.92081045  1.0
  O  O18  1  0.89883488  0.42178713  0.92081045  1.0
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