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Ac5NdHg10

High-Entropy Materials HEA Traditional Materials TRA

MP-ID: mp-3254366 · Space group: Amm2 (#38)

Basic Information

Formula
Ac5NdHg10
MP-ID
mp-3254366
Elements
3
Sites
16
Density
11.3873
g/cm³
Volume
479.05
ų
Cell a
6.7483
Å
Cell b
6.7483
Å
Cell c
10.8848
Å
α Angle
90.00
°
β Angle
90.00
°
γ Angle
104.88
°
Space Group
Amm2
Point Group
mm2
Crystal System
Orthorhombic
Bravais Lattice
Orthorhombic P
Stability
Yes
Packing Fraction
0.5240

X-ray Diffraction

Diffraction Pattern
X-axis: 2θ (°); Y-axis: relative intensity; CuKa ; λ=1.5406 Å
Diffraction Peaks (Top 24)
2θd (Å)Ihkl
15.84 5.5945 3.3 (1,0,1)
27.17 3.2816 6.0 (1,1,2)
27.25 3.2722 7.7 (2,-1,0)
28.14 3.1706 6.5 (1,0,3)
28.48 3.1336 9.7 (2,-1,1)
28.58 3.1238 3.1 (2,0,1)
31.91 2.8043 21.1 (2,-1,2)
32.00 2.7973 100.0 (2,0,2)
32.91 2.7212 32.9 (0,0,4)
32.92 2.7210 2.2 (1,1,3)
33.50 2.6748 19.8 (2,-2,0)
33.74 2.6565 9.4 (1,2,0)
33.74 2.6565 9.4 (2,1,0)
34.76 2.5807 5.9 (2,1,1)
36.99 2.4299 21.5 (2,-1,3)
37.07 2.4253 9.1 (2,0,3)
42.16 2.1434 1.0 (2,1,3)
43.24 2.0922 3.1 (2,-1,4)
43.84 2.0650 3.6 (1,0,5)
44.03 2.0568 5.5 (2,2,0)
44.54 2.0344 4.0 (3,-2,1)
44.85 2.0210 1.9 (2,2,1)
46.94 1.9355 2.2 (3,-2,2)
47.35 1.9198 4.4 (3,1,0)
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Energy Properties

Formation Energy/atom
-0.55634
eV/atom
Energy/atom
-54.69906
eV/atom
Energy above Hull
0.0000
eV/atom
Uncorrected Energy
-54.6991
eV/atom
Volume/atom
29.94
ų
c/a Ratio
-

Electronic Properties

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

Magnetic Properties

Magnetic
No
Total Mag. Moment
0.1188
μB
Mag. Ordering
NM
Mag. Sites
0
Magnetization/Volume
0.000250
μB/ų

Elastic Properties

Elastic data not available

Feature Analysis

Composition Overview

Element Composition (atomic fraction)
Composition Info
Major / Matrix Element
Hg · 0.625
Element Family
5d-TM
Solute Fraction
0.375
Interstitial Fraction
0.000

High-Entropy Alloy Features

Composite Radar (normalized)
Element-Class Share
Mix Entropy ΔS/R
0.8305
HEA criterion (>1.0 = high entropy)
Mix Entropy ΔS
6.9050
J/mol·K
Ω Parameter
1.0247
Ω > 1.1 favors solid solution
Atomic Size Mismatch δr
12.357%
δr < 6.6% favors single-phase solid solution
Electronegativity Diff Δχ
0.4326
smaller = more stable mixing
VEC
8.313
valence electron concentration, affects phase stability
Mix Enthalpy ΔH_mix
-4.319
kJ/mol; negative = exothermic mixing
Entropy Norm
0.7560
SS Former
0
Phase Tendency
IM

Traditional Material Features

ROM Blended-Feature Radar
Rating & Classification
Tier
B
Score
0.556
Family
Hg-rich Multi-Component
Matrix Element
Hg · 0.625

Related Tasks

Related computation task IDs (1)

Citation & References

Materials Project Page
https://materialsproject.org/materials/mp-3254366
Reference Citation

The crystal structure and related material properties of Ac5NdHg10 were obtained from the Materials Project database (MP-ID: mp-3254366, 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_Ac5NdHg10
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   6.74825300
_cell_length_b   6.74825336
_cell_length_c   10.88476327
_cell_angle_alpha   90.00000000
_cell_angle_beta   90.00000000
_cell_angle_gamma   104.88283653
_symmetry_Int_Tables_number   1
_chemical_formula_structural   Ac5NdHg10
_chemical_formula_sum   'Ac5 Nd1 Hg10'
_cell_volume   479.05181604
_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
  Ac  Ac0  1  0.60438268  0.60438268  0.25000000  1.0
  Ac  Ac1  1  0.20274229  0.79256834  0.50141652  1.0
  Ac  Ac2  1  0.20274229  0.79256834  0.99858348  1.0
  Ac  Ac3  1  0.79256834  0.20274229  0.50141652  1.0
  Ac  Ac4  1  0.79256834  0.20274229  0.99858348  1.0
  Nd  Nd5  1  0.39680482  0.39680482  0.75000000  1.0
  Hg  Hg6  1  0.00632944  0.00632844  0.25000000  1.0
  Hg  Hg7  1  0.01026694  0.01026594  0.75000000  1.0
  Hg  Hg8  1  0.30848027  0.30848027  0.03273451  1.0
  Hg  Hg9  1  0.68928088  0.68928088  0.95146220  1.0
  Hg  Hg10  1  0.30848027  0.30848027  0.46726549  1.0
  Hg  Hg11  1  0.68928088  0.68928088  0.54853780  1.0
  Hg  Hg12  1  0.46904675  0.06666199  0.25000000  1.0
  Hg  Hg13  1  0.93732582  0.52303697  0.75000000  1.0
  Hg  Hg14  1  0.52303697  0.93732582  0.75000000  1.0
  Hg  Hg15  1  0.06666199  0.46904675  0.25000000  1.0
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