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Gd3RhO7

High-Entropy Materials HEA Traditional Materials TRA

MP-ID: mp-3254570 · Space group: Cmcm (#63)

Basic Information

Formula
Gd3RhO7
MP-ID
mp-3254570
Elements
3
Sites
22
Density
7.7795
g/cm³
Volume
293.13
ų
Cell a
6.4569
Å
Cell b
6.4569
Å
Cell c
7.4582
Å
α Angle
90.00
°
β Angle
90.00
°
γ Angle
109.49
°
Space Group
Cmcm
Point Group
mmm
Crystal System
Orthorhombic
Bravais Lattice
Orthorhombic 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
14.55 6.0870 1.8 (1,0,0)
18.82 4.7158 2.6 (1,0,1)
20.63 4.3054 3.7 (1,-1,1)
29.34 3.0446 98.2 (1,-1,2)
29.35 3.0435 100.0 (2,0,0)
31.75 2.8179 1.0 (2,0,1)
34.01 2.6363 20.4 (2,-2,0)
34.01 2.6362 46.2 (1,1,2)
36.14 2.4856 2.5 (2,-2,1)
37.16 2.4194 2.3 (2,-1,2)
37.18 2.4185 2.0 (2,1,0)
39.16 2.3006 1.9 (2,1,1)
40.10 2.2487 1.8 (1,-1,3)
43.78 2.0679 4.8 (3,-1,1)
46.38 1.9578 2.2 (3,0,1)
47.21 1.9254 1.1 (2,0,3)
48.84 1.8646 16.8 (0,0,4)
48.86 1.8641 56.8 (3,-1,2)
48.87 1.8636 13.8 (2,2,0)
51.25 1.7825 1.1 (3,-2,2)
52.81 1.7335 1.4 (2,1,3)
53.57 1.7107 2.6 (3,-3,1)
56.56 1.6272 2.1 (3,-1,3)
58.01 1.5899 29.1 (2,0,4)
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Energy Properties

Formation Energy/atom
-2.38683
eV/atom
Energy/atom
-20.21728
eV/atom
Energy above Hull
0.4336
eV/atom
Uncorrected Energy
-20.2173
eV/atom
Volume/atom
13.32
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
26.0936
μB
Mag. Ordering
FiM
Mag. Sites
6
Magnetization/Volume
0.089020
μB/ų

Elastic Properties

Elastic data not available

Feature Analysis

Composition Overview

Element Composition (atomic fraction)
Composition Info
Major / Matrix Element
O · 0.636
Element Family
Metalloid-Nonmetal
Solute Fraction
0.364
Interstitial Fraction
0.000

High-Entropy Alloy Features

Composite Radar (normalized)
Element-Class Share
Mix Entropy ΔS/R
0.8600
HEA criterion (>1.0 = high entropy)
Mix Entropy ΔS
7.1498
J/mol·K
Ω Parameter
1.2721
Ω > 1.1 favors solid solution
Atomic Size Mismatch δr
53.851%
δr < 6.6% favors single-phase solid solution
Electronegativity Diff Δχ
0.9887
smaller = more stable mixing
VEC
4.182
valence electron concentration, affects phase stability
Mix Enthalpy ΔH_mix
-3.769
kJ/mol; negative = exothermic mixing
Entropy Norm
0.7828
SS Former
0
Phase Tendency
IM

Traditional Material Features

ROM Blended-Feature Radar
Rating & Classification
Tier
C
Score
0.417
Family
O-rich Multi-Component
Matrix Element
O · 0.636

Related Tasks

Related computation task IDs (1)

Citation & References

Materials Project Page
https://materialsproject.org/materials/mp-3254570
Reference Citation

The crystal structure and related material properties of Gd3RhO7 were obtained from the Materials Project database (MP-ID: mp-3254570, 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_Gd3RhO7
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   6.45688366
_cell_length_b   6.45688376
_cell_length_c   7.45822387
_cell_angle_alpha   90.00000000
_cell_angle_beta   90.00000000
_cell_angle_gamma   109.48745173
_symmetry_Int_Tables_number   1
_chemical_formula_structural   Gd3RhO7
_chemical_formula_sum   'Gd6 Rh2 O14'
_cell_volume   293.13087662
_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
  Gd  Gd0  1  0.50000000  0.50000000  0.50000000  1.0
  Gd  Gd1  1  0.50000000  0.50000000  0.00000000  1.0
  Gd  Gd2  1  0.53470937  0.99874425  0.75000000  1.0
  Gd  Gd3  1  0.99874425  0.53470937  0.25000000  1.0
  Gd  Gd4  1  0.46529063  0.00125575  0.25000000  1.0
  Gd  Gd5  1  0.00125575  0.46529063  0.75000000  1.0
  Rh  Rh6  1  0.00000000  0.00000000  0.50000000  1.0
  Rh  Rh7  1  0.00000000  0.00000000  0.00000000  1.0
  O  O8  1  0.68260938  0.92741818  0.47100502  1.0
  O  O9  1  0.92741818  0.68260938  0.52899498  1.0
  O  O10  1  0.68260938  0.92741818  0.02899498  1.0
  O  O11  1  0.92741818  0.68260938  0.97100502  1.0
  O  O12  1  0.31739062  0.07258182  0.52899498  1.0
  O  O13  1  0.07258182  0.31739062  0.47100502  1.0
  O  O14  1  0.31739062  0.07258182  0.97100502  1.0
  O  O15  1  0.07258182  0.31739062  0.02899498  1.0
  O  O16  1  0.93185813  0.06814187  0.75000000  1.0
  O  O17  1  0.06814187  0.93185813  0.25000000  1.0
  O  O18  1  0.36942315  0.63057685  0.75000000  1.0
  O  O19  1  0.63057685  0.36942315  0.25000000  1.0
  O  O20  1  0.63533830  0.36466170  0.75000000  1.0
  O  O21  1  0.36466170  0.63533830  0.25000000  1.0
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