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Gd3(CoGe2)2

High-Entropy Materials HEA Traditional Materials TRA

MP-ID: mp-1078863 · Space group: C2/m (#12)

Basic Information

Formula
Gd3(CoGe2)2
MP-ID
mp-1078863
Elements
3
Sites
9
Density
8.3963
g/cm³
Volume
174.07
ų
Cell a
5.7764
Å
Cell b
5.7764
Å
Cell c
8.0816
Å
α Angle
73.64
°
β Angle
73.64
°
γ Angle
42.63
°
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
11.49 7.7035 2.7 (0,0,1)
17.64 5.0280 1.6 (1,1,1)
23.09 3.8518 1.1 (0,0,2)
23.56 3.7754 12.2 (1,1,-1)
24.35 3.6562 7.1 (1,1,2)
24.45 3.6414 39.7 (1,0,1)
30.75 2.9072 4.5 (1,0,2)
33.05 2.7104 94.3 (2,1,1)
33.32 2.6893 16.2 (2,2,1)
33.80 2.6516 88.8 (2,1,0)
33.99 2.6374 40.8 (1,1,3)
34.61 2.5913 100.0 (1,0,-2)
34.94 2.5678 48.5 (0,0,3)
34.99 2.5648 4.6 (2,2,0)
35.72 2.5140 15.9 (2,2,2)
36.35 2.4714 12.4 (2,1,2)
38.41 2.3439 15.4 (2,1,-1)
39.80 2.2650 16.0 (1,0,3)
40.28 2.2390 29.3 (2,2,-1)
41.57 2.1725 6.1 (2,2,3)
42.90 2.1080 58.2 (2,1,3)
43.08 2.0995 64.8 (1,-1,0)
43.95 2.0604 7.1 (1,1,-3)
44.46 2.0378 5.9 (1,0,-3)
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Energy Properties

Formation Energy/atom
-0.70179
eV/atom
Energy/atom
-9.03372
eV/atom
Energy above Hull
0.0123
eV/atom
Uncorrected Energy
-9.0337
eV/atom
Volume/atom
19.34
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
7.1328
μB
Mag. Ordering
FiM
Mag. Sites
3
Magnetization/Volume
0.040980
μB/ų

Elastic Properties

Elastic data not available

Feature Analysis

Composition Overview

Element Composition (atomic fraction)
Composition Info
Major / Matrix Element
Ge · 0.444
Element Family
PostTransition-Noble
Solute Fraction
0.556
Interstitial Fraction
0.000

High-Entropy Alloy Features

Composite Radar (normalized)
Element-Class Share
Mix Entropy ΔS/R
1.0609
HEA criterion (>1.0 = high entropy)
Mix Entropy ΔS
8.8200
J/mol·K
Ω Parameter
0.4364
Ω > 1.1 favors solid solution
Atomic Size Mismatch δr
18.089%
δr < 6.6% favors single-phase solid solution
Electronegativity Diff Δχ
0.3649
smaller = more stable mixing
VEC
4.778
valence electron concentration, affects phase stability
Mix Enthalpy ΔH_mix
-29.500
kJ/mol; negative = exothermic mixing
Entropy Norm
0.9656
SS Former
0
Phase Tendency
AM

Traditional Material Features

ROM Blended-Feature Radar
Rating & Classification
Tier
B
Score
0.474
Family
Ge-rich Multi-Component
Matrix Element
Ge · 0.444

Related Tasks

Citation & References

Materials Project Page
https://materialsproject.org/materials/mp-1078863
Reference Citation

The crystal structure and related material properties of Gd3(CoGe2)2 were obtained from the Materials Project database (MP-ID: mp-1078863, 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_Gd3(CoGe2)2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   5.77636320
_cell_length_b   5.77636320
_cell_length_c   8.08163557
_cell_angle_alpha   73.64306855
_cell_angle_beta   73.64306855
_cell_angle_gamma   42.62702055
_symmetry_Int_Tables_number   1
_chemical_formula_structural   Gd3(CoGe2)2
_chemical_formula_sum   'Gd3 Co2 Ge4'
_cell_volume   174.07262777
_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  0.37743900  0.37743900  0.69195100  1.0
  Gd  Gd1  1  0.62256100  0.62256100  0.30804900  1.0
  Gd  Gd2  1  0.00000000  0.00000000  0.00000000  1.0
  Co  Co3  1  0.30725600  0.30725600  0.37330600  1.0
  Co  Co4  1  0.69274400  0.69274400  0.62669400  1.0
  Ge  Ge5  1  0.10095300  0.10095300  0.59958300  1.0
  Ge  Ge6  1  0.89904700  0.89904700  0.40041700  1.0
  Ge  Ge7  1  0.71096500  0.71096500  0.91961900  1.0
  Ge  Ge8  1  0.28903500  0.28903500  0.08038100  1.0
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