Sr(Zn2Pt)2

高熵材料 HEA 传统材料 TRA

MP-ID: mp-3295405 · Space group: P4_2/mnm (#136)

Materials Project API

Basic Information

Formula

Sr(Zn2Pt)2

MP-ID

mp-3295405

Elements

Sites

Density

9.8681

g/cm³

Volume

248.85

Å³

Cell a

7.7278

Cell b

7.7278

Cell c

4.1670

α Angle

90.00

β Angle

90.00

γ Angle

90.00

Space Group

P4_2/mnm

Point Group

4/mmm

Crystal System

Tetragonal

Bravais Lattice

Stability

Yes

Packing Fraction

X-ray Diffraction

Diffraction Pattern

Target / Radiation

X-axis: 2θ (°); Y-axis: relative intensity; Cu Kα ; λ=1.5418 Å

Diffraction Peaks (Top 24)

2θ	d (Å)	I	hkl
16.22	5.4644	2.5	(1,1,0)
23.02	3.8639	37.5	(2,0,0)
25.78	3.4560	9.6	(2,1,0)
26.91	3.3135	48.2	(1,1,1)
32.78	2.7322	36.9	(2,2,0)
33.69	2.6601	45.7	(2,1,1)
36.78	2.4437	11.5	(3,1,0)
39.44	2.2849	26.4	(2,2,1)
41.20	2.1911	8.0	(3,0,1)
42.90	2.1080	100.0	(3,1,1)
43.43	2.0835	32.4	(0,0,2)
47.04	1.9320	2.4	(4,0,0)
47.72	1.9060	8.9	(3,2,1)
48.58	1.8743	23.6	(4,1,0)
49.72	1.8339	10.0	(2,0,2)
50.08	1.8215	1.7	(3,3,0)
51.20	1.7843	3.1	(2,1,2)
52.99	1.7280	5.2	(4,2,0)
53.62	1.7093	1.5	(4,1,1)
55.02	1.6690	4.1	(3,3,1)
55.46	1.6568	16.9	(2,2,2)
58.19	1.5855	5.7	(3,1,2)
59.84	1.5456	1.0	(5,0,0)
61.15	1.5155	4.2	(5,1,0)

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Energy Properties

Formation Energy/atom

-0.62422

eV/atom

Energy/atom

-22.59043

eV/atom

Energy above Hull

0.0000

eV/atom

Uncorrected Energy

-22.5904

eV/atom

Volume/atom

17.77

Å³

c/a Ratio

0.5392

Electronic Properties

Metallic

Metal

Band Gap

Direct Gap

CBM

N/A

Magnetic Properties

Magnetic

Total Mag. Moment

0.0029

μB

Mag. Ordering

Mag. Sites

Magnetization/Volume

0.000010

μB/Å³

Elastic Properties

Elastic data not available

Feature Analysis

Element Composition (atomic fraction)

Composition Info

Major / Matrix Element

Zn · 0.571

Element Family

3d-TM

Solute Fraction

0.429

Interstitial Fraction

0.000

Composite Radar (normalized)

Element-Class Share

Mix Entropy ΔS/R

0.9557

HEA criterion (>1.0 = high entropy)

Mix Entropy ΔS

7.9457

J/mol·K

Ω Parameter

0.5970

Ω > 1.1 favors solid solution

Atomic Size Mismatch δr

15.614%

δr < 6.6% favors single-phase solid solution

Electronegativity Diff Δχ

0.4207

smaller = more stable mixing

VEC

10.000

valence electron concentration, affects phase stability

Mix Enthalpy ΔH_mix

-15.026

kJ/mol; negative = exothermic mixing

Entropy Norm

0.8699

SS Former

Phase Tendency

Related Tasks

Related computation task IDs (1)

aaahfmwj

Citation & References

Materials Project Page

https://materialsproject.org/materials/mp-3295405

Reference Citation

The crystal structure and related material properties of Sr(Zn2Pt)2 were obtained from the Materials Project database (MP-ID: mp-3295405, 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…

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Raw CIF Data

# generated using pymatgen
data_Sr(Zn2Pt)2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   7.72779217
_cell_length_b   7.72779217
_cell_length_c   4.16702652
_cell_angle_alpha   90.00000000
_cell_angle_beta   90.00000000
_cell_angle_gamma   90.00000000
_symmetry_Int_Tables_number   1
_chemical_formula_structural   Sr(Zn2Pt)2
_chemical_formula_sum   'Sr2 Zn8 Pt4'
_cell_volume   248.84970549
_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
  Sr  Sr0  1  0.50000000  0.50000000  0.50000000  1.0
  Sr  Sr1  1  0.00000000  0.00000000  0.00000000  1.0
  Zn  Zn2  1  0.35131825  0.09131127  0.50000000  1.0
  Zn  Zn3  1  0.64868175  0.90868873  0.50000000  1.0
  Zn  Zn4  1  0.85131825  0.40868873  0.00000000  1.0
  Zn  Zn5  1  0.14868175  0.59131127  0.00000000  1.0
  Zn  Zn6  1  0.09131127  0.35131825  0.50000000  1.0
  Zn  Zn7  1  0.90868873  0.64868175  0.50000000  1.0
  Zn  Zn8  1  0.40868873  0.85131825  0.00000000  1.0
  Zn  Zn9  1  0.59131127  0.14868175  0.00000000  1.0
  Pt  Pt10  1  0.77895574  0.22104426  0.50000000  1.0
  Pt  Pt11  1  0.22104426  0.77895574  0.50000000  1.0
  Pt  Pt12  1  0.27895574  0.27895574  0.00000000  1.0
  Pt  Pt13  1  0.72104426  0.72104426  0.00000000  1.0

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