La2Nb2N2O5
High-Entropy Materials HEAMP-ID: mp-856200 · Space group: P1 (#1)
Basic Information
Formula
La2Nb2N2O5
MP-ID
mp-856200
Elements
4
Sites
44
Density
6.0592
g/cm³
Volume
626.64
ų
Cell a
8.0221
Å
Cell b
13.7704
Å
Cell c
5.7343
Å
α Angle
90.47
°
β Angle
90.04
°
γ Angle
98.40
°
Space Group
P1
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)
| 2θ | d (Å) | I | hkl |
|---|---|---|---|
| 12.06 | 7.3394 | 1.3 | (1,-1,0) |
| 13.00 | 6.8111 | 100.0 | (0,2,0) |
| 15.86 | 5.5877 | 3.1 | (1,-2,0) |
| 18.36 | 4.8314 | 2.4 | (1,2,0) |
| 26.17 | 3.4055 | 17.7 | (0,4,0) |
| 26.94 | 3.3097 | 4.8 | (1,-4,0) |
| 30.03 | 2.9760 | 3.4 | (1,4,0) |
| 31.84 | 2.8104 | 1.2 | (0,1,-2) |
| 31.95 | 2.8009 | 1.2 | (0,1,2) |
| 33.53 | 2.6730 | 4.8 | (1,-1,2) |
| 33.59 | 2.6681 | 1.2 | (1,-1,-2) |
| 34.14 | 2.6259 | 1.0 | (1,1,-2) |
| 34.29 | 2.6151 | 4.2 | (1,1,2) |
| 36.94 | 2.4335 | 1.0 | (0,3,-2) |
| 37.83 | 2.3783 | 2.8 | (1,-3,2) |
| 38.08 | 2.3633 | 1.2 | (1,-3,-2) |
| 38.74 | 2.3246 | 3.1 | (2,-1,2) |
| 38.76 | 2.3235 | 3.3 | (2,-1,-2) |
| 39.66 | 2.2724 | 1.1 | (1,-6,0) |
| 39.70 | 2.2704 | 3.0 | (0,6,0) |
| 39.83 | 2.2635 | 2.8 | (2,1,-2) |
| 39.87 | 2.2610 | 2.0 | (1,3,2) |
| 39.99 | 2.2546 | 3.1 | (2,1,2) |
| 42.04 | 2.1492 | 3.7 | (2,-3,2) |
Energy Properties
Formation Energy/atom
2.31290
eV/atom
Energy/atom
-4.18628
eV/atom
Energy above Hull
5.2248
eV/atom
Uncorrected Energy
-3.8740
eV/atom
Volume/atom
14.24
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
6.4809
μB
Mag. Ordering
FiM
Mag. Sites
13
Magnetization/Volume
0.010340
μB/ų
Elastic Properties
Elastic data not available
Feature Analysis
Composition Overview
Element Composition (atomic fraction)
Composition Info
Major / Matrix Element
O · 0.455
Element Family
Metalloid-Nonmetal
Solute Fraction
0.545
Interstitial Fraction
0.182
High-Entropy Alloy Features
Composite Radar (normalized)
Element-Class Share
Mix Entropy ΔS/R
1.2883
HEA criterion (>1.0 = high entropy)
Mix Entropy ΔS
10.7105
J/mol·K
Ω Parameter
0.2688
Ω > 1.1 favors solid solution
Atomic Size Mismatch δr
51.950%
δr < 6.6% favors single-phase solid solution
Electronegativity Diff Δχ
0.9730
smaller = more stable mixing
VEC
4.182
valence electron concentration, affects phase stability
Mix Enthalpy ΔH_mix
-30.013
kJ/mol; negative = exothermic mixing
Entropy Norm
0.9293
SS Former
0
Phase Tendency
AM
Related Tasks
Citation & References
Materials Project Page
https://materialsproject.org/materials/mp-856200
Reference Citation
The crystal structure and related material properties of La2Nb2N2O5 were obtained from the Materials Project database (MP-ID: mp-856200, 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
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Raw CIF Data
# generated using pymatgen
data_La2Nb2N2O5
_symmetry_space_group_name_H-M 'P 1'
_cell_length_a 8.02207200
_cell_length_b 13.77037519
_cell_length_c 5.73433683
_cell_angle_alpha 90.47133377
_cell_angle_beta 90.04116581
_cell_angle_gamma 98.40043274
_symmetry_Int_Tables_number 1
_chemical_formula_structural La2Nb2N2O5
_chemical_formula_sum 'La8 Nb8 N8 O20'
_cell_volume 626.63607615
_cell_formula_units_Z 4
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 0.56877300 0.34468000 0.13302400 1.0
La La1 1 0.91178200 0.76309100 0.21564200 1.0
La La2 1 0.12299100 0.25095300 0.27380200 1.0
La La3 1 0.38330100 0.77276900 0.34085400 1.0
La La4 1 0.60796800 0.28318200 0.66523400 1.0
La La5 1 0.88308100 0.75037200 0.73222300 1.0
La La6 1 0.09500600 0.26421100 0.78043100 1.0
La La7 1 0.43019800 0.83366300 0.86221000 1.0
Nb Nb8 1 0.32186300 0.29439400 0.07040800 1.0
Nb Nb9 1 0.11729800 0.74207600 0.02305100 1.0
Nb Nb10 1 0.67552500 0.79169900 0.41396800 1.0
Nb Nb11 1 0.88249100 0.26361500 0.47254700 1.0
Nb Nb12 1 0.11838000 0.76746000 0.53609800 1.0
Nb Nb13 1 0.32457500 0.28199500 0.59768600 1.0
Nb Nb14 1 0.88311500 0.25887400 0.96922100 1.0
Nb Nb15 1 0.67568000 0.79474400 0.92505500 1.0
N N16 1 0.40986100 0.54994000 0.08734400 1.0
N N17 1 0.18488800 0.45039300 0.02603900 1.0
N N18 1 0.98159800 0.53405400 0.96199000 1.0
N N19 1 0.57340900 0.56117000 0.87043900 1.0
N N20 1 0.10589300 0.81724700 0.77089400 1.0
N N21 1 0.30343700 0.19405100 0.82196900 1.0
N N22 1 0.82119400 0.94395300 0.97469600 1.0
N N23 1 0.59044500 0.05047100 0.91691900 1.0
O O24 1 0.69717200 0.68659500 0.18201500 1.0
O O25 1 0.88729900 0.31991900 0.22771500 1.0
O O26 1 0.42796400 0.05892300 0.13461500 1.0
O O27 1 0.01896400 0.04394300 0.04842600 1.0
O O28 1 0.22261900 0.95578400 0.12524400 1.0
O O29 1 0.61381300 0.07404200 0.37375400 1.0
O O30 1 0.82042300 0.94455900 0.43121100 1.0
O O31 1 0.08489500 0.67206700 0.27543700 1.0
O O32 1 0.30211800 0.34864400 0.32825000 1.0
O O33 1 0.56348900 0.58606000 0.41266300 1.0
O O34 1 0.97897700 0.52257400 0.53356500 1.0
O O35 1 0.77476400 0.45335300 0.50052500 1.0
O O36 1 0.22725100 0.96081200 0.49882100 1.0
O O37 1 0.01907000 0.02964100 0.45962200 1.0
O O38 1 0.43789500 0.08274500 0.58559400 1.0
O O39 1 0.69681000 0.84461400 0.66557100 1.0
O O40 1 0.91271700 0.17065600 0.72180300 1.0
O O41 1 0.17809600 0.44501600 0.56243800 1.0
O O42 1 0.38652000 0.57770500 0.61901500 1.0
O O43 1 0.77638800 0.44827100 0.87197700 1.0
