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LiYS2

Elasticity Data ELA

MP-ID: mp-15788 · Space group: R-3m (#166)

Basic Information

Formula
LiYS2
MP-ID
mp-15788
Elements
3
Sites
4
Density
3.2758
g/cm³
Volume
81.09
ų
Cell a
6.5364
Å
Cell b
6.5364
Å
Cell c
6.5364
Å
α Angle
34.78
°
β Angle
34.78
°
γ Angle
34.78
°
Space Group
R-3m
Point Group
-3m
Crystal System
Trigonal
Bravais Lattice
Trigonal R
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
14.44 6.1349 68.5 (1,1,1)
26.79 3.3277 16.0 (0,0,1)
26.79 3.3277 32.0 (1,0,0)
28.10 3.1756 4.4 (1,1,0)
29.11 3.0674 1.4 (2,2,2)
32.86 2.7258 100.0 (2,1,1)
36.06 2.4910 7.3 (2,2,1)
36.06 2.4910 14.6 (2,1,2)
43.60 2.0761 8.0 (3,2,2)
43.60 2.0761 4.0 (2,2,3)
44.29 2.0450 4.1 (3,3,3)
46.49 1.9534 35.4 (1,0,-1)
47.81 1.9024 10.8 (3,3,2)
47.81 1.9024 21.7 (3,2,3)
48.93 1.8614 17.3 (2,1,0)
54.47 1.6846 6.3 (1,1,-1)
55.79 1.6477 1.8 (3,2,1)
58.09 1.5878 5.9 (2,2,0)
58.09 1.5878 11.8 (2,0,2)
60.20 1.5372 4.7 (3,1,1)
60.35 1.5337 5.2 (4,4,4)
61.86 1.4998 1.4 (4,4,3)
61.86 1.4998 2.7 (4,3,4)
65.62 1.4227 1.1 (3,3,1)
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Energy Properties

Formation Energy/atom
-2.08829
eV/atom
Energy/atom
-6.26149
eV/atom
Energy above Hull
0.0000
eV/atom
Uncorrected Energy
-11.8093
eV/atom
Volume/atom
20.27
ų
c/a Ratio
1.0000

Electronic Properties

Metallic
Non-metal
Band Gap
1.920
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
48.397
GPa
GVRH
27.464
GPa
Young's Modulus E
69.286
GPa
Poisson Ratio ν
0.261
Pugh Ratio K/G
1.762
Vickers Hardness Est.
4.159
GPa
Ductility
Brittle
Anisotropy
0.707
Lame λ
30.088
GPa

Feature Analysis

Composition Overview

Element Composition (atomic fraction)
Composition Info
Major / Matrix Element
S · 0.500
Element Family
Metalloid-Nonmetal
Solute Fraction
0.500
Interstitial Fraction
0.000

Elasticity Features

Elastic Modulus Comparison (GPa)
Elastic Features
Elastic Anisotropy AU
0.7070
Homogeneous Poisson ν
0.2610
Debye Temperature
351.4
K
Sound Velocity
3,218.9
m/s
Homogeneity
0.2610

Related Tasks

Citation & References

Materials Project Page
https://materialsproject.org/materials/mp-15788
Reference Citation

The crystal structure and related material properties of LiYS2 were obtained from the Materials Project database (MP-ID: mp-15788, 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_LiYS2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   6.53637511
_cell_length_b   6.53637511
_cell_length_c   6.53637485
_cell_angle_alpha   34.77765681
_cell_angle_beta   34.77765681
_cell_angle_gamma   34.77765343
_symmetry_Int_Tables_number   1
_chemical_formula_structural   LiYS2
_chemical_formula_sum   'Li1 Y1 S2'
_cell_volume   81.09398008
_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
  Li  Li0  1  0.50000000  0.50000000  0.50000000  1.0
  Y  Y1  1  -0.00000000  -0.00000000  -0.00000000  1.0
  S  S2  1  0.24956317  0.24956317  0.24956317  1.0
  S  S3  1  0.75043683  0.75043683  0.75043683  1.0
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