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Dy2Fe2Si2C

High-Entropy Materials HEA Elasticity Data ELA

MP-ID: mp-11705 · Space group: C2/m (#12)

Basic Information

Formula
Dy2Fe2Si2C
MP-ID
mp-11705
Elements
4
Sites
7
Density
7.8044
g/cm³
Volume
107.42
ų
Cell a
5.6264
Å
Cell b
5.6264
Å
Cell c
6.7226
Å
α Angle
53.47
°
β Angle
53.47
°
γ Angle
40.80
°
Space Group
C2/m
Point Group
2/m
Crystal System
Monoclinic
Bravais Lattice
Monoclinic C
Stability
Yes
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
17.13 5.1776 7.6 (1,1,1)
21.82 4.0736 14.9 (1,1,0)
25.20 3.5343 67.5 (1,0,0)
26.52 3.3613 32.2 (1,1,2)
34.40 2.6068 28.2 (1,0,-1)
34.46 2.6029 72.8 (2,1,1)
34.54 2.5965 23.2 (0,0,2)
34.65 2.5888 20.5 (2,2,2)
35.62 2.5207 30.5 (1,1,-1)
35.69 2.5154 31.7 (2,2,1)
36.88 2.4372 100.0 (1,0,2)
36.93 2.4341 28.7 (2,1,2)
40.40 2.2328 32.4 (2,1,0)
41.77 2.1623 4.1 (1,1,3)
41.84 2.1589 24.0 (2,2,3)
46.29 1.9613 34.8 (1,-1,0)
48.92 1.8620 1.1 (1,0,-2)
49.04 1.8578 2.3 (3,2,2)
49.71 1.8341 1.1 (2,0,1)
51.73 1.7671 3.2 (2,0,0)
52.15 1.7540 10.6 (3,2,3)
52.38 1.7468 17.8 (2,1,-1)
52.45 1.7445 5.6 (3,2,1)
52.46 1.7443 2.8 (1,1,-2)
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Energy Properties

Formation Energy/atom
-0.68766
eV/atom
Energy/atom
-7.29601
eV/atom
Energy above Hull
0.0000
eV/atom
Uncorrected Energy
-7.2960
eV/atom
Volume/atom
15.35
ų
c/a Ratio
-

Electronic Properties

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

Magnetic Properties

Magnetic
No
Total Mag. Moment
0.0024
μB
Mag. Ordering
NM
Mag. Sites
0
Magnetization/Volume
0.000020
μB/ų

Elastic Properties

KVRH
129.258
GPa
GVRH
81.477
GPa
Young's Modulus E
201.990
GPa
Poisson Ratio ν
0.240
Pugh Ratio K/G
1.586
Vickers Hardness Est.
12.293
GPa
Ductility
Ductile
Anisotropy
0.529
Lame λ
74.940
GPa

Feature Analysis

Composition Overview

Element Composition (atomic fraction)
Composition Info
Major / Matrix Element
Dy · 0.286
Element Family
Lanthanide
Solute Fraction
0.714
Interstitial Fraction
0.429

High-Entropy Alloy Features

Composite Radar (normalized)
Element-Class Share
Mix Entropy ΔS/R
1.3518
HEA criterion (>1.0 = high entropy)
Mix Entropy ΔS
11.2387
J/mol·K
Ω Parameter
1.0726
Ω > 1.1 favors solid solution
Atomic Size Mismatch δr
24.636%
δr < 6.6% favors single-phase solid solution
Electronegativity Diff Δχ
0.4232
smaller = more stable mixing
VEC
6.857
valence electron concentration, affects phase stability
Mix Enthalpy ΔH_mix
-21.224
kJ/mol; negative = exothermic mixing
Entropy Norm
0.9751
SS Former
0
Phase Tendency
AM

Elasticity Features

Elastic Modulus Comparison (GPa)
Elastic Features
Elastic Anisotropy AU
0.5290
Homogeneous Poisson ν
0.2400
Debye Temperature
605.3
K
Sound Velocity
3,582.8
m/s
Homogeneity
0.2400

Related Tasks

Citation & References

Materials Project Page
https://materialsproject.org/materials/mp-11705
Reference Citation

The crystal structure and related material properties of Dy2Fe2Si2C were obtained from the Materials Project database (MP-ID: mp-11705, 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_Dy2Fe2Si2C
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   5.62642196
_cell_length_b   5.62642196
_cell_length_c   6.72257532
_cell_angle_alpha   53.47164392
_cell_angle_beta   53.47164392
_cell_angle_gamma   40.80175094
_symmetry_Int_Tables_number   1
_chemical_formula_structural   Dy2Fe2Si2C
_chemical_formula_sum   'Dy2 Fe2 Si2 C1'
_cell_volume   107.42100168
_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  0.94094600  0.94094600  0.79362300  1.0
  Dy  Dy1  1  0.05905400  0.05905400  0.20637700  1.0
  Fe  Fe2  1  0.70108300  0.70108300  0.40454300  1.0
  Fe  Fe3  1  0.29891700  0.29891700  0.59545700  1.0
  Si  Si4  1  0.33785700  0.33785700  0.21690400  1.0
  Si  Si5  1  0.66214300  0.66214300  0.78309600  1.0
  C  C6  1  0.50000000  0.50000000  0.50000000  1.0
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