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GdSi2Rh3

High-Entropy Materials HEA Traditional Materials TRA

MP-ID: mp-622508 · Space group: P6/mmm (#191)

Basic Information

Formula
GdSi2Rh3
MP-ID
mp-622508
Elements
3
Sites
6
Density
9.0275
g/cm³
Volume
96.04
ų
Cell a
5.5130
Å
Cell b
5.5130
Å
Cell c
3.6489
Å
α Angle
90.00
°
β Angle
90.00
°
γ Angle
120.00
°
Space Group
P6/mmm
Point Group
6/mmm
Crystal System
Hexagonal
Bravais Lattice
Hexagonal P
Stability
Yes
Packing Fraction
0.7400

X-ray Diffraction

Diffraction Pattern
X-axis: 2θ (°); Y-axis: relative intensity; CuKa ; λ=1.5406 Å
Diffraction Peaks (Top 24)
2θd (Å)Ihkl
24.39 3.6489 17.8 (0,0,0,1)
30.84 2.8992 46.9 (1,-1,0,1)
30.84 2.8992 46.9 (1,-1,0,-1)
30.84 2.8992 46.9 (1,0,-1,1)
30.84 2.8992 46.9 (0,1,-1,-1)
30.84 2.8992 93.7 (1,0,-1,-1)
32.48 2.7565 8.6 (2,-1,-1,0)
32.48 2.7565 8.6 (1,-2,1,0)
32.48 2.7565 8.6 (1,1,-2,0)
37.68 2.3872 100.0 (2,-2,0,0)
37.68 2.3872 100.0 (2,0,-2,0)
37.68 2.3872 100.0 (0,2,-2,0)
41.04 2.1995 40.2 (2,-1,-1,1)
41.04 2.1995 40.2 (1,-2,1,1)
41.04 2.1995 40.2 (2,-1,-1,-1)
41.04 2.1995 40.2 (1,-2,1,-1)
41.04 2.1994 80.4 (1,1,-2,1)
45.40 1.9977 10.6 (2,-2,0,1)
45.40 1.9977 10.6 (2,-2,0,-1)
45.40 1.9977 10.6 (2,0,-2,1)
45.40 1.9977 21.3 (2,0,-2,-1)
45.40 1.9977 10.6 (0,2,-2,1)
49.99 1.8245 62.5 (0,0,0,2)
56.93 1.6176 8.3 (3,-2,-1,1)
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Energy Properties

Formation Energy/atom
-1.01924
eV/atom
Energy/atom
-8.85585
eV/atom
Energy above Hull
0.0000
eV/atom
Uncorrected Energy
-23.2911
eV/atom
Volume/atom
16.01
ų
c/a Ratio
0.6619

Electronic Properties

Metallic
Metal
Band Gap
0
eV
Direct Gap
No
CBM
N/A
eV

Magnetic Properties

Magnetic
Yes
Total Mag. Moment
7.0861
μB
Mag. Ordering
Unknown
Mag. Sites
0
Magnetization/Volume
0.073780
μB/ų

Elastic Properties

Elastic data not available

Feature Analysis

Composition Overview

Element Composition (atomic fraction)
Composition Info
Major / Matrix Element
Rh · 0.500
Element Family
4d-TM
Solute Fraction
0.500
Interstitial Fraction
0.333

High-Entropy Alloy Features

Composite Radar (normalized)
Element-Class Share
Mix Entropy ΔS/R
1.0114
HEA criterion (>1.0 = high entropy)
Mix Entropy ΔS
8.4088
J/mol·K
Ω Parameter
0.6315
Ω > 1.1 favors solid solution
Atomic Size Mismatch δr
15.511%
δr < 6.6% favors single-phase solid solution
Electronegativity Diff Δχ
0.3853
smaller = more stable mixing
VEC
6.333
valence electron concentration, affects phase stability
Mix Enthalpy ΔH_mix
-25.900
kJ/mol; negative = exothermic mixing
Entropy Norm
0.9206
SS Former
0
Phase Tendency
AM

Traditional Material Features

ROM Blended-Feature Radar
Rating & Classification
Tier
B
Score
0.518
Family
Interstitial Alloy
Matrix Element
Rh · 0.500

Related Tasks

Citation & References

Materials Project Page
https://materialsproject.org/materials/mp-622508
Reference Citation

The crystal structure and related material properties of GdSi2Rh3 were obtained from the Materials Project database (MP-ID: mp-622508, 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_GdSi2Rh3
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   5.51299630
_cell_length_b   5.51299322
_cell_length_c   3.64893402
_cell_angle_alpha   90.00003542
_cell_angle_beta   89.99996281
_cell_angle_gamma   120.00102638
_symmetry_Int_Tables_number   1
_chemical_formula_structural   GdSi2Rh3
_chemical_formula_sum   'Gd1 Si2 Rh3'
_cell_volume   96.04335221
_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
  Gd  Gd0  1  0.00000010  -0.00000000  0.00000259  1.0
  Si  Si1  1  0.66669105  0.33331346  0.99999916  1.0
  Si  Si2  1  0.33330951  0.66668654  -0.00000080  1.0
  Rh  Rh3  1  0.49999350  -0.00000000  0.49999913  1.0
  Rh  Rh4  1  -0.00000016  0.49999386  0.49999975  1.0
  Rh  Rh5  1  0.50000600  0.50000614  0.49999917  1.0
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