Navigation

HEAS Data Platform · Materials Science Database

SmTm3

Traditional Materials TRA Elasticity Data ELA

MP-ID: mp-979026 · Space group: P6_3/mmc (#194)

Basic Information

Formula
SmTm3
MP-ID
mp-979026
Elements
2
Sites
8
Density
8.7134
g/cm³
Volume
250.48
ų
Cell a
7.2085
Å
Cell b
7.2085
Å
Cell c
5.5660
Å
α Angle
90.00
°
β Angle
90.00
°
γ Angle
120.00
°
Space Group
P6_3/mmc
Point Group
6/mmm
Crystal System
Hexagonal
Bravais Lattice
Hexagonal P
Stability
No
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
28.60 3.1214 12.0 (2,0,-2,0)
28.60 3.1214 12.0 (0,2,-2,0)
28.60 3.1214 12.0 (2,-2,0,0)
32.16 2.7830 35.4 (0,0,0,2)
32.90 2.7225 100.0 (2,0,-2,1)
32.90 2.7225 50.0 (2,-2,0,1)
43.57 2.0773 15.4 (2,0,-2,2)
43.57 2.0773 7.7 (2,-2,0,2)
50.65 1.8021 10.0 (2,2,-4,0)
50.65 1.8021 10.0 (4,-2,-2,0)
50.65 1.8021 10.0 (2,-4,2,0)
57.81 1.5949 20.2 (2,0,-2,3)
57.81 1.5949 10.1 (2,-2,0,3)
59.20 1.5607 1.6 (4,0,-4,0)
59.20 1.5607 1.6 (0,4,-4,0)
59.20 1.5607 1.6 (4,-4,0,0)
61.28 1.5127 11.3 (2,2,-4,2)
61.28 1.5127 22.5 (4,-2,-2,2)
61.73 1.5027 8.3 (4,0,-4,1)
61.73 1.5027 8.3 (0,4,-4,1)
61.73 1.5027 8.3 (4,-4,0,1)
67.29 1.3915 4.3 (0,0,0,4)
68.99 1.3613 2.0 (4,0,-4,2)
68.99 1.3613 2.0 (0,4,-4,2)
Get direct link

Energy Properties

Formation Energy/atom
0.00836
eV/atom
Energy/atom
-33.76566
eV/atom
Energy above Hull
0.0084
eV/atom
Uncorrected Energy
-33.7657
eV/atom
Volume/atom
31.31
ų
c/a Ratio
0.7721

Electronic Properties

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

Magnetic Properties

Magnetic
Yes
Total Mag. Moment
0.0001
μB
Mag. Ordering
Unknown
Mag. Sites
0
Magnetization/Volume
0.000000
μB/ų

Elastic Properties

KVRH
41.991
GPa
GVRH
26.898
GPa
Young's Modulus E
66.496
GPa
Poisson Ratio ν
0.236
Pugh Ratio K/G
1.561
Vickers Hardness Est.
5.149
GPa
Ductility
Ductile
Anisotropy
0.015
Lame λ
24.059
GPa

Feature Analysis

Composition Overview

Element Composition (atomic fraction)
Composition Info
Major / Matrix Element
Tm · 0.750
Element Family
N/A
Solute Fraction
0.250
Interstitial Fraction
0.000

Traditional Material Features

ROM Blended-Feature Radar
Rating & Classification
Tier
A
Score
0.636
Family
Binary Alloy
Matrix Element
Tm · 0.750

Elasticity Features

Elastic Modulus Comparison (GPa)
Elastic Features
Elastic Anisotropy AU
0.0150
Homogeneous Poisson ν
0.2360
Homogeneity
0.2360

Related Tasks

Citation & References

Materials Project Page
https://materialsproject.org/materials/mp-979026
Reference Citation

The crystal structure and related material properties of SmTm3 were obtained from the Materials Project database (MP-ID: mp-979026, 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_SmTm3
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   7.20851996
_cell_length_b   7.20851904
_cell_length_c   5.56600296
_cell_angle_alpha   90.00000000
_cell_angle_beta   90.00000000
_cell_angle_gamma   119.99995954
_symmetry_Int_Tables_number   1
_chemical_formula_structural   SmTm3
_chemical_formula_sum   'Sm2 Tm6'
_cell_volume   250.47616032
_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
  Sm  Sm0  1  0.33333300  0.66666700  0.75000100  1.0
  Sm  Sm1  1  0.66666700  0.33333300  0.25000000  1.0
  Tm  Tm2  1  0.16475500  0.32950899  0.25000000  1.0
  Tm  Tm3  1  0.67049001  0.83524500  0.25000000  1.0
  Tm  Tm4  1  0.16475400  0.83524500  0.25000000  1.0
  Tm  Tm5  1  0.83524500  0.67049001  0.75000100  1.0
  Tm  Tm6  1  0.32950999  0.16475500  0.75000100  1.0
  Tm  Tm7  1  0.83524500  0.16475500  0.75000100  1.0
Get direct link