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HEAS Data Platform · Materials Science Database

MP-ID: mp-1007761 · Space group: P6_3/mmc (#194)

Basic Information

Formula
HW
MP-ID
mp-1007761
Elements
2
Sites
4
Density
17.1058
g/cm³
Volume
35.89
ų
Cell a
2.9490
Å
Cell b
2.9490
Å
Cell c
4.7652
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
hP
Stability
No
Packing Fraction
0.7405

X-ray Diffraction

Diffraction Pattern
X-axis: 2θ (°); Y-axis: relative intensity; Cu Kα ; λ=1.5418 Å
Diffraction Peaks (Top 17)
2θd (Å)Ihkl
35.14 2.5539 34.6 (1,0,-1,0)
37.76 2.3826 38.6 (0,0,0,2)
40.06 2.2510 50.0 (1,-1,0,1)
40.06 2.2510 100.0 (1,0,-1,1)
52.53 1.7422 23.5 (1,0,-1,2)
63.05 1.4745 17.9 (2,-1,-1,0)
63.05 1.4745 9.0 (1,1,-2,0)
69.72 1.3488 29.8 (1,0,-1,3)
74.27 1.2769 1.4 (2,-2,0,0)
74.27 1.2769 2.7 (2,0,-2,0)
75.88 1.2538 20.8 (2,-1,-1,2)
75.88 1.2538 10.4 (1,1,-2,2)
77.37 1.2334 7.5 (2,-2,0,1)
77.37 1.2334 14.9 (2,0,-2,1)
80.65 1.1913 4.5 (0,0,0,4)
86.47 1.1255 1.9 (2,-2,0,2)
86.47 1.1255 3.9 (2,0,-2,2)
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Energy Properties

Formation Energy/atom
0.15777
eV/atom
Energy/atom
-27.25368
eV/atom
Energy above Hull
0.1578
eV/atom
Uncorrected Energy
-8.0177
eV/atom
Volume/atom
8.97
ų
c/a Ratio
1.6159

Electronic Properties

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

Magnetic Properties

Magnetic
No
Total Mag. Moment
0.0001
μB
Mag. Ordering
NM
Mag. Sites
0
Magnetization/Volume
0.000000
μB/ų

Elastic Properties

KVRH
295.549
GPa
GVRH
163.378
GPa
Young's Modulus E
413.872
GPa
Poisson Ratio ν
0.267
Pugh Ratio K/G
1.809
Vickers Hardness Est.
16.704
GPa
Ductility
Brittle
Anisotropy
0.080
Lame λ
186.630
GPa

Feature Analysis

Element Composition (atomic fraction)
Composition Info
Major / Matrix Element
H · 0.500
Element Family
Alkali-AlkEarth
Solute Fraction
0.500
Interstitial Fraction
0.000
Elastic Modulus Comparison (GPa)
Elastic Features
Elastic Anisotropy AU
0.0800
Homogeneous Poisson ν
0.2670
Debye Temperature
493.3
K
Sound Velocity
3,437.8
m/s
Homogeneity
0.2670

Related Tasks

Citation & References

Materials Project Page
https://materialsproject.org/materials/mp-1007761
Reference Citation

The crystal structure and related material properties of HW were obtained from the Materials Project database (MP-ID: mp-1007761, 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

3D Crystal Structure Rendering

Loading 3D structure…

Style: Ball & Stick
Raw CIF Data
# generated using pymatgen
data_HW
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   2.94895840
_cell_length_b   2.94895840
_cell_length_c   4.76520400
_cell_angle_alpha   90.00000000
_cell_angle_beta   90.00000000
_cell_angle_gamma   120.00000889
_symmetry_Int_Tables_number   1
_chemical_formula_structural   HW
_chemical_formula_sum   'H2 W2'
_cell_volume   35.88801036
_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
  H  H0  1  0.00000000  0.00000000  0.00000000  1.0
  H  H1  1  0.00000000  0.00000000  0.50000000  1.0
  W  W2  1  0.66666700  0.33333300  0.25000000  1.0
  W  W3  1  0.33333300  0.66666700  0.75000000  1.0
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