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Dy2Ge2O7

Elasticity Data ELA

MP-ID: mp-768241 · Space group: C2 (#5)

Basic Information

Formula
Dy2Ge2O7
MP-ID
mp-768241
Elements
3
Sites
11
Density
6.2453
g/cm³
Volume
154.82
ų
Cell a
5.7500
Å
Cell b
5.7500
Å
Cell c
4.9622
Å
α Angle
82.63
°
β Angle
97.37
°
γ Angle
74.89
°
Space Group
C2
Point Group
2
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
16.20 5.4713 19.8 (1,0,0)
18.29 4.8504 26.0 (0,0,1)
19.44 4.5652 3.0 (1,1,0)
22.35 3.9786 1.7 (1,0,-1)
26.08 3.4171 5.6 (1,-1,0)
26.54 3.3587 35.5 (1,0,1)
26.82 3.3243 100.0 (1,1,1)
28.60 3.1209 58.2 (1,-1,-1)
32.20 2.7802 30.8 (2,1,0)
32.74 2.7357 41.7 (2,0,0)
34.82 2.5764 2.2 (2,0,-1)
35.17 2.5514 18.5 (1,-1,1)
35.82 2.5067 17.4 (2,1,-1)
37.07 2.4252 12.7 (0,0,2)
37.96 2.3705 7.6 (1,0,-2)
38.69 2.3274 14.6 (2,1,1)
39.48 2.2826 4.8 (2,2,0)
40.50 2.2272 6.8 (2,0,1)
40.83 2.2103 4.4 (2,-1,0)
40.83 2.2102 7.9 (1,-1,-2)
41.27 2.1875 9.2 (2,-1,-1)
42.19 2.1417 5.4 (1,1,2)
43.83 2.0653 1.7 (2,2,1)
45.60 1.9893 19.9 (2,0,-2)
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Energy Properties

Formation Energy/atom
-3.05290
eV/atom
Energy/atom
-7.88185
eV/atom
Energy above Hull
0.0063
eV/atom
Uncorrected Energy
-14.9988
eV/atom
Volume/atom
14.07
ų
c/a Ratio
-

Electronic Properties

Metallic
Non-metal
Band Gap
3.858
eV
Direct Gap
No
CBM
N/A
eV

Magnetic Properties

Magnetic
Yes
Total Mag. Moment
0.0000
μB
Mag. Ordering
Unknown
Mag. Sites
0
Magnetization/Volume
0.000000
μB/ų

Elastic Properties

KVRH
125.554
GPa
GVRH
48.501
GPa
Young's Modulus E
128.905
GPa
Poisson Ratio ν
0.329
Pugh Ratio K/G
2.589
Vickers Hardness Est.
3.366
GPa
Ductility
Brittle
Anisotropy
1.008
Lame λ
93.220
GPa

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

Elasticity Features

Elastic Modulus Comparison (GPa)
Elastic Features
Elastic Anisotropy AU
1.0080
Homogeneous Poisson ν
0.3290
Debye Temperature
611.8
K
Sound Velocity
3,124.4
m/s
Homogeneity
0.3290

Related Tasks

Citation & References

Materials Project Page
https://materialsproject.org/materials/mp-768241
Reference Citation

The crystal structure and related material properties of Dy2Ge2O7 were obtained from the Materials Project database (MP-ID: mp-768241, 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_Dy2Ge2O7
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   5.74998111
_cell_length_b   5.74998111
_cell_length_c   4.96221687
_cell_angle_alpha   82.62559141
_cell_angle_beta   97.37440859
_cell_angle_gamma   74.88863757
_symmetry_Int_Tables_number   1
_chemical_formula_structural   Dy2Ge2O7
_chemical_formula_sum   'Dy2 Ge2 O7'
_cell_volume   154.81938555
_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  0.69815611  0.69815611  0.00000000  1.0
  Dy  Dy1  1  0.30972919  0.30972919  0.00000000  1.0
  Ge  Ge2  1  0.23439399  0.77637273  0.41007798  1.0
  Ge  Ge3  1  0.77637273  0.23439399  0.58992202  1.0
  O  O4  1  0.08492325  0.60899505  0.21338162  1.0
  O  O5  1  0.40516828  0.92163255  0.21332467  1.0
  O  O6  1  0.40217002  0.60488661  0.72425169  1.0
  O  O7  1  0.01438921  0.01438921  0.50000000  1.0
  O  O8  1  0.60488661  0.40217002  0.27574831  1.0
  O  O9  1  0.92163255  0.40516828  0.78667533  1.0
  O  O10  1  0.60899505  0.08492325  0.78661838  1.0
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