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HEAS Data Platform · Materials Science Database

TmF3

Elasticity Data ELA

MP-ID: mp-865194 · Space group: I4/mmm (#139)

Basic Information

Formula
TmF3
MP-ID
mp-865194
Elements
2
Sites
4
Density
9.4405
g/cm³
Volume
39.74
ų
Cell a
4.0263
Å
Cell b
4.0263
Å
Cell c
4.0263
Å
α Angle
127.61
°
β Angle
127.61
°
γ Angle
77.25
°
Space Group
I4/mmm
Point Group
4/mmm
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 17)
2θd (Å)Ihkl
28.37 3.1455 26.1 (1,1,-1)
28.85 3.0946 100.0 (1,0,-1)
35.72 2.5134 28.9 (1,-1,0)
46.24 1.9635 63.6 (2,0,-1)
50.53 1.8061 22.4 (2,1,-2)
51.42 1.7772 22.8 (1,-1,1)
58.70 1.5728 7.5 (2,2,-2)
59.77 1.5473 13.8 (2,0,-2)
60.03 1.5412 27.2 (2,-1,-1)
70.65 1.3332 8.5 (2,2,-3)
74.97 1.2668 14.5 (3,0,-2)
75.68 1.2567 6.7 (2,-2,0)
81.08 1.1861 6.0 (3,2,-3)
81.77 1.1778 10.9 (3,1,-3)
82.69 1.1670 5.7 (3,-1,-1)
82.92 1.1643 5.7 (2,-1,-2)
86.61 1.1240 5.2 (2,-2,1)
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Energy Properties

Formation Energy/atom
-4.11875
eV/atom
Energy/atom
-6.67530
eV/atom
Energy above Hull
0.0000
eV/atom
Uncorrected Energy
-15.3068
eV/atom
Volume/atom
9.93
ų
c/a Ratio
1.0000

Electronic Properties

Metallic
Non-metal
Band Gap
5.380
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
152.068
GPa
GVRH
39.096
GPa
Young's Modulus E
108.030
GPa
Poisson Ratio ν
0.382
Pugh Ratio K/G
3.890
Vickers Hardness Est.
0.485
GPa
Ductility
Brittle
Anisotropy
1.880
Lame λ
126.004
GPa

Feature Analysis

Composition Overview

Element Composition (atomic fraction)
Composition Info
Major / Matrix Element
F · 0.750
Element Family
Metalloid-Nonmetal
Solute Fraction
0.250
Interstitial Fraction
0.000

Elasticity Features

Elastic Modulus Comparison (GPa)
Elastic Features
Elastic Anisotropy AU
1.8800
Homogeneous Poisson ν
0.3820
Homogeneity
0.3820

Related Tasks

Citation & References

Materials Project Page
https://materialsproject.org/materials/mp-865194
Reference Citation

The crystal structure and related material properties of TmF3 were obtained from the Materials Project database (MP-ID: mp-865194, 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_TmF3
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   4.02631245
_cell_length_b   4.02631245
_cell_length_c   4.02631245
_cell_angle_alpha   127.61378148
_cell_angle_beta   127.61378148
_cell_angle_gamma   77.25152736
_symmetry_Int_Tables_number   1
_chemical_formula_structural   TmF3
_chemical_formula_sum   'Tm1 F3'
_cell_volume   39.73995853
_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
  Tm  Tm0  1  0.00000000  0.00000000  0.00000000  1.0
  F  F1  1  0.75000200  0.25000000  0.50000300  1.0
  F  F2  1  0.25000000  0.75000200  0.50000300  1.0
  F  F3  1  0.50000000  0.50000000  0.00000000  1.0
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