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Dy3(CoGe2)2

High-Entropy Materials HEA Traditional Materials TRA

MP-ID: mp-1079307 · Space group: C2/m (#12)

Basic Information

Formula
Dy3(CoGe2)2
MP-ID
mp-1079307
Elements
3
Sites
9
Density
8.8878
g/cm³
Volume
167.39
ų
Cell a
5.6495
Å
Cell b
5.6495
Å
Cell c
8.0174
Å
α Angle
73.55
°
β Angle
73.55
°
γ Angle
43.38
°
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
11.59 7.6360 1.6 (0,0,1)
18.00 4.9273 2.0 (1,1,1)
24.06 3.6982 10.1 (1,1,-1)
24.63 3.6151 39.7 (1,0,1)
24.65 3.6114 9.7 (1,1,2)
30.98 2.8869 5.0 (1,0,2)
33.60 2.6673 78.5 (2,1,1)
34.17 2.6240 17.8 (2,2,1)
34.32 2.6130 34.9 (1,1,3)
34.43 2.6051 92.1 (2,1,0)
34.97 2.5657 100.0 (1,0,-2)
35.26 2.5453 49.0 (0,0,3)
35.92 2.4999 5.4 (2,2,0)
36.47 2.4637 13.4 (2,2,2)
36.85 2.4393 11.8 (2,1,2)
39.10 2.3036 12.9 (2,1,-1)
40.10 2.2487 14.5 (1,0,3)
41.28 2.1869 26.2 (2,2,-1)
42.25 2.1390 5.3 (2,2,3)
43.34 2.0879 62.1 (1,-1,0)
43.38 2.0858 59.6 (2,1,3)
44.60 2.0317 6.6 (1,1,-3)
44.93 2.0176 3.8 (1,0,-3)
46.66 1.9468 7.6 (2,1,-2)
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Energy Properties

Formation Energy/atom
-0.70995
eV/atom
Energy/atom
-5.88929
eV/atom
Energy above Hull
0.0075
eV/atom
Uncorrected Energy
-20.5061
eV/atom
Volume/atom
18.60
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
2.0233
μB
Mag. Ordering
Unknown
Mag. Sites
0
Magnetization/Volume
0.012090
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
9.6306
Ω > 1.1 favors solid solution
Atomic Size Mismatch δr
16.638%
δr < 6.6% favors single-phase solid solution
Electronegativity Diff Δχ
0.3555
smaller = more stable mixing
VEC
7.111
valence electron concentration, affects phase stability
Mix Enthalpy ΔH_mix
1.366
kJ/mol; negative = exothermic mixing
Entropy Norm
0.9656
SS Former
0
Phase Tendency
IM

Traditional Material Features

ROM Blended-Feature Radar
Rating & Classification
Tier
C
Score
0.429
Family
Ge-rich Multi-Component
Matrix Element
Ge · 0.444

Related Tasks

Citation & References

Materials Project Page
https://materialsproject.org/materials/mp-1079307
Reference Citation

The crystal structure and related material properties of Dy3(CoGe2)2 were obtained from the Materials Project database (MP-ID: mp-1079307, 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_Dy3(CoGe2)2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   5.64949871
_cell_length_b   5.64949871
_cell_length_c   8.01737192
_cell_angle_alpha   73.54951679
_cell_angle_beta   73.54951679
_cell_angle_gamma   43.37893893
_symmetry_Int_Tables_number   1
_chemical_formula_structural   Dy3(CoGe2)2
_chemical_formula_sum   'Dy3 Co2 Ge4'
_cell_volume   167.38910452
_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
  Dy  Dy0  1  0.37490940  0.37490940  0.69150590  1.0
  Dy  Dy1  1  0.62509060  0.62509060  0.30849410  1.0
  Dy  Dy2  1  0.00000000  0.00000000  -0.00000000  1.0
  Co  Co3  1  0.31536642  0.31536642  0.36162058  1.0
  Co  Co4  1  0.68463358  0.68463358  0.63837942  1.0
  Ge  Ge5  1  0.09804211  0.09804211  0.59725259  1.0
  Ge  Ge6  1  0.90195789  0.90195789  0.40274741  1.0
  Ge  Ge7  1  0.71038424  0.71038424  0.92050216  1.0
  Ge  Ge8  1  0.28961576  0.28961576  0.07949784  1.0
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