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AlAgTe2

Elasticity Data ELA

MP-ID: mp-14092 · Space group: I-42d (#122)

Basic Information

Formula
AlAgTe2
MP-ID
mp-14092
Elements
3
Sites
8
Density
5.2860
g/cm³
Volume
245.06
ų
Cell a
6.3518
Å
Cell b
6.3518
Å
Cell c
7.5543
Å
α Angle
114.86
°
β Angle
114.86
°
γ Angle
90.00
°
Space Group
I-42d
Point Group
-42m
Crystal System
Tetragonal
Bravais Lattice
Tetragonal I
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
15.74 5.6288 8.7 (1,0,-1)
24.65 3.6114 100.0 (1,-1,1)
24.65 3.6114 33.3 (1,1,0)
26.10 3.4145 8.5 (1,0,-2)
28.10 3.1759 6.3 (2,0,-1)
29.41 3.0370 3.0 (0,0,2)
32.37 2.7660 11.6 (2,1,-1)
38.72 2.3255 3.0 (2,-1,-2)
39.72 2.2693 1.4 (1,0,-3)
39.72 2.2693 1.4 (1,0,2)
40.15 2.2457 16.2 (2,-2,0)
40.15 2.2457 16.2 (2,2,-2)
41.12 2.1950 31.0 (2,0,-3)
41.12 2.1950 31.0 (2,0,1)
43.38 2.0858 4.3 (3,0,-2)
47.69 1.9071 41.5 (3,-1,-2)
49.36 1.8464 1.5 (2,-1,-3)
49.37 1.8458 19.7 (1,1,-4)
50.55 1.8057 1.2 (2,-2,2)
50.55 1.8057 1.2 (2,2,-4)
57.01 1.6154 4.0 (3,-2,-2)
58.09 1.5880 10.2 (4,0,-2)
60.59 1.5283 1.3 (4,-1,-2)
61.02 1.5185 4.8 (0,0,4)
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Energy Properties

Formation Energy/atom
-0.43926
eV/atom
Energy/atom
-20.16987
eV/atom
Energy above Hull
0.0000
eV/atom
Uncorrected Energy
-20.1699
eV/atom
Volume/atom
30.63
ų
c/a Ratio
1.1893

Electronic Properties

Metallic
Non-metal
Band Gap
1.047
eV
Direct Gap
Yes
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
42.200
GPa
GVRH
16.770
GPa
Young's Modulus E
44.425
GPa
Poisson Ratio ν
0.325
Pugh Ratio K/G
2.516
Vickers Hardness Est.
0.536
GPa
Ductility
Brittle
Anisotropy
0.701
Lame λ
31.020
GPa

Feature Analysis

Composition Overview

Element Composition (atomic fraction)
Composition Info
Major / Matrix Element
Te · 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
0.7010
Homogeneous Poisson ν
0.3250
Debye Temperature
270.5
K
Sound Velocity
1,995.8
m/s
Homogeneity
0.3250

Related Tasks

Citation & References

Materials Project Page
https://materialsproject.org/materials/mp-14092
Reference Citation

The crystal structure and related material properties of AlAgTe2 were obtained from the Materials Project database (MP-ID: mp-14092, 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_AlAgTe2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   6.35181268
_cell_length_b   6.35181277
_cell_length_c   7.55426112
_cell_angle_alpha   114.86063870
_cell_angle_beta   114.86063874
_cell_angle_gamma   90.00000495
_symmetry_Int_Tables_number   1
_chemical_formula_structural   AlAgTe2
_chemical_formula_sum   'Al2 Ag2 Te4'
_cell_volume   245.06077562
_cell_formula_units_Z   2
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
  Al  Al0  1  0.75000000  0.25000000  0.50000000  1.0
  Al  Al1  1  0.50000000  0.50000000  0.00000000  1.0
  Ag  Ag2  1  0.25000000  0.75000000  0.50000000  1.0
  Ag  Ag3  1  0.00000000  0.00000000  0.00000000  1.0
  Te  Te4  1  0.39626036  0.37500000  0.25000000  1.0
  Te  Te5  1  0.12500000  0.60373964  0.75000000  1.0
  Te  Te6  1  0.62500000  0.14626036  0.75000000  1.0
  Te  Te7  1  0.85373964  0.87500000  0.25000000  1.0
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