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Be6Si6TcRh11

High-Entropy Materials HEA

MP-ID: mp-3291327 · Space group: Pmm2 (#25)

Basic Information

Formula
Be6Si6TcRh11
MP-ID
mp-3291327
Elements
4
Sites
24
Density
8.6817
g/cm³
Volume
277.83
ų
Cell a
4.0273
Å
Cell b
5.7030
Å
Cell c
12.0964
Å
α Angle
90.00
°
β Angle
90.00
°
γ Angle
90.00
°
Space Group
Pmm2
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
27.08 3.2924 3.5 (0,1,3)
27.11 3.2897 3.5 (1,1,0)
31.37 2.8515 71.1 (0,2,0)
31.39 2.8494 70.7 (1,0,-3)
31.39 2.8494 70.7 (1,0,3)
44.96 2.0161 49.6 (0,0,6)
44.97 2.0156 100.0 (1,2,-3)
44.97 2.0156 100.0 (1,2,3)
45.02 2.0136 50.0 (2,0,0)
55.85 1.6462 27.0 (0,2,6)
55.90 1.6449 27.2 (2,2,0)
65.46 1.4258 16.0 (0,4,0)
65.52 1.4247 15.8 (2,0,-6)
65.52 1.4247 15.8 (2,0,6)
74.40 1.2751 11.2 (1,4,-3)
74.40 1.2751 11.2 (1,4,3)
74.41 1.2749 5.5 (1,0,-9)
74.41 1.2749 5.5 (1,0,9)
74.44 1.2745 11.1 (2,2,-6)
74.44 1.2745 11.1 (2,2,6)
74.50 1.2737 5.6 (3,0,-3)
74.50 1.2737 5.6 (3,0,3)
82.94 1.1641 16.3 (0,4,6)
82.96 1.1639 16.1 (1,2,-9)
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Energy Properties

Formation Energy/atom
-0.83523
eV/atom
Energy/atom
-16.25746
eV/atom
Energy above Hull
0.0000
eV/atom
Uncorrected Energy
-16.2575
eV/atom
Volume/atom
11.58
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
0.0031
μB
Mag. Ordering
NM
Mag. Sites
0
Magnetization/Volume
0.000010
μB/ų

Elastic Properties

Elastic data not available

Feature Analysis

Composition Overview

Element Composition (atomic fraction)
Composition Info
Major / Matrix Element
Rh · 0.458
Element Family
4d-TM
Solute Fraction
0.542
Interstitial Fraction
0.250

High-Entropy Alloy Features

Composite Radar (normalized)
Element-Class Share
Mix Entropy ΔS/R
1.1831
HEA criterion (>1.0 = high entropy)
Mix Entropy ΔS
9.8366
J/mol·K
Ω Parameter
0.7415
Ω > 1.1 favors solid solution
Atomic Size Mismatch δr
8.007%
δr < 6.6% favors single-phase solid solution
Electronegativity Diff Δχ
0.2916
smaller = more stable mixing
VEC
5.833
valence electron concentration, affects phase stability
Mix Enthalpy ΔH_mix
-25.713
kJ/mol; negative = exothermic mixing
Entropy Norm
0.8535
SS Former
0
Phase Tendency
AM

Related Tasks

Related computation task IDs (1)

Citation & References

Materials Project Page
https://materialsproject.org/materials/mp-3291327
Reference Citation

The crystal structure and related material properties of Be6Si6TcRh11 were obtained from the Materials Project database (MP-ID: mp-3291327, 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_Be6Si6TcRh11
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   4.02726191
_cell_length_b   5.70302509
_cell_length_c   12.09642786
_cell_angle_alpha   90.00000000
_cell_angle_beta   90.00023100
_cell_angle_gamma   90.00000000
_symmetry_Int_Tables_number   1
_chemical_formula_structural   Be6Si6TcRh11
_chemical_formula_sum   'Be6 Si6 Tc1 Rh11'
_cell_volume   277.82562273
_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
  Be  Be0  1  0.00000000  0.49729540  0.99999800  1.0
  Be  Be1  1  0.49994083  0.00292959  0.16369135  1.0
  Be  Be2  1  0.99993190  0.49971385  0.33258459  1.0
  Be  Be3  1  0.50000100  0.99891980  0.50000000  1.0
  Be  Be4  1  0.00006310  0.49971485  0.66741641  1.0
  Be  Be5  1  0.50006017  0.00292859  0.83630865  1.0
  Si  Si6  1  0.00000000  0.00820843  0.00000000  1.0
  Si  Si7  1  0.49990810  0.49597099  0.16281559  1.0
  Si  Si8  1  0.99989403  0.99929555  0.33318269  1.0
  Si  Si9  1  0.50000000  0.50038150  0.50000000  1.0
  Si  Si10  1  0.00010597  0.99929455  0.66681731  1.0
  Si  Si11  1  0.50009290  0.49596999  0.83718341  1.0
  Tc  Tc12  1  0.50000000  0.24978392  0.00000000  1.0
  Rh  Rh13  1  0.50000000  0.75151674  0.00000000  1.0
  Rh  Rh14  1  0.99993618  0.25051384  0.17280919  1.0
  Rh  Rh15  1  0.99992474  0.75043735  0.16886407  1.0
  Rh  Rh16  1  0.49992888  0.24979206  0.33624378  1.0
  Rh  Rh17  1  0.49992305  0.74886524  0.33348352  1.0
  Rh  Rh18  1  0.00000000  0.24927877  0.50000000  1.0
  Rh  Rh19  1  0.99999900  0.74958850  0.50000000  1.0
  Rh  Rh20  1  0.50007112  0.24979106  0.66375622  1.0
  Rh  Rh21  1  0.50007695  0.74886424  0.66651648  1.0
  Rh  Rh22  1  0.00006382  0.25051084  0.82719081  1.0
  Rh  Rh23  1  0.00007626  0.75043635  0.83113493  1.0
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