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Ba2CeNbO6

High-Entropy Materials HEA

MP-ID: mp-1079632 · Space group: C2/m (#12)

Basic Information

Formula
Ba2CeNbO6
MP-ID
mp-1079632
Elements
4
Sites
10
Density
6.1801
g/cm³
Volume
162.20
ų
Cell a
6.1034
Å
Cell b
6.1034
Å
Cell c
6.1645
Å
α Angle
59.91
°
β Angle
59.91
°
γ Angle
60.03
°
Space Group
C2/m
Point Group
2/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
17.80 4.9825 1.8 (1,0,0)
28.97 3.0822 48.9 (1,1,2)
29.16 3.0628 100.0 (1,0,-1)
29.25 3.0532 49.2 (1,-1,0)
29.27 3.0516 99.3 (2,1,1)
34.16 2.6247 2.0 (1,0,2)
34.37 2.6095 1.1 (1,-1,1)
34.51 2.5986 1.2 (2,2,1)
35.73 2.5131 1.7 (0,0,2)
35.91 2.5008 1.8 (2,2,2)
36.05 2.4912 3.9 (2,0,0)
41.64 2.1691 59.1 (2,0,2)
41.93 2.1545 28.1 (2,2,0)
45.74 1.9835 1.1 (2,0,-1)
51.39 1.7780 21.0 (1,0,3)
51.60 1.7714 21.9 (3,2,3)
51.64 1.7702 11.0 (1,1,-2)
51.81 1.7646 19.6 (2,-1,-1)
51.88 1.7625 20.6 (3,0,1)
51.91 1.7616 9.7 (3,3,2)
51.94 1.7603 21.0 (3,1,0)
60.03 1.5411 8.9 (2,2,4)
60.45 1.5314 17.6 (2,0,-2)
60.66 1.5266 9.4 (2,-2,0)
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Energy Properties

Formation Energy/atom
-3.37557
eV/atom
Energy/atom
-8.33197
eV/atom
Energy above Hull
0.0087
eV/atom
Uncorrected Energy
-7.9198
eV/atom
Volume/atom
16.22
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
1.0000
μB
Mag. Ordering
FM
Mag. Sites
2
Magnetization/Volume
0.006170
μB/ų

Elastic Properties

Elastic data not available

Feature Analysis

Composition Overview

Element Composition (atomic fraction)
Composition Info
Major / Matrix Element
O · 0.600
Element Family
Metalloid-Nonmetal
Solute Fraction
0.400
Interstitial Fraction
0.000

High-Entropy Alloy Features

Composite Radar (normalized)
Element-Class Share
Mix Entropy ΔS/R
1.0889
HEA criterion (>1.0 = high entropy)
Mix Entropy ΔS
9.0531
J/mol·K
Ω Parameter
13.9927
Ω > 1.1 favors solid solution
Atomic Size Mismatch δr
59.123%
δr < 6.6% favors single-phase solid solution
Electronegativity Diff Δχ
1.1488
smaller = more stable mixing
VEC
3.600
valence electron concentration, affects phase stability
Mix Enthalpy ΔH_mix
0.398
kJ/mol; negative = exothermic mixing
Entropy Norm
0.7855
SS Former
0
Phase Tendency
IM

Related Tasks

Citation & References

Materials Project Page
https://materialsproject.org/materials/mp-1079632
Reference Citation

The crystal structure and related material properties of Ba2CeNbO6 were obtained from the Materials Project database (MP-ID: mp-1079632, 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_Ba2CeNbO6
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   6.10344267
_cell_length_b   6.10344267
_cell_length_c   6.16449630
_cell_angle_alpha   59.91162973
_cell_angle_beta   59.91162973
_cell_angle_gamma   60.03301319
_symmetry_Int_Tables_number   1
_chemical_formula_structural   Ba2CeNbO6
_chemical_formula_sum   'Ba2 Ce1 Nb1 O6'
_cell_volume   162.20300578
_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
  Ba  Ba0  1  0.75124500  0.75124500  0.74516500  1.0
  Ba  Ba1  1  0.24875500  0.24875500  0.25483500  1.0
  Ce  Ce2  1  0.00000000  0.00000000  0.00000000  1.0
  Nb  Nb3  1  0.50000000  0.50000000  0.50000000  1.0
  O  O4  1  0.73480400  0.73480400  0.21226800  1.0
  O  O5  1  0.26519600  0.26519600  0.78773200  1.0
  O  O6  1  0.29120700  0.76508500  0.70583600  1.0
  O  O7  1  0.23491500  0.70879300  0.29416400  1.0
  O  O8  1  0.70879300  0.23491500  0.29416400  1.0
  O  O9  1  0.76508500  0.29120700  0.70583600  1.0
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