SrEu(BiPt)2

高熵材料 HEA

MP-ID: mp-3293958 · Space group: P2_1/m (#11)

Materials Project API

Basic Information

Formula

SrEu(BiPt)2

MP-ID

mp-3293958

Elements

Sites

Density

11.3178

g/cm³

Volume

307.44

Å³

Cell a

4.8044

Cell b

7.7801

Cell c

8.2250

α Angle

90.08

β Angle

90.00

γ Angle

90.00

Space Group

P2_1/m

Point Group

2/m

Crystal System

Monoclinic

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
11.37	7.7801	7.6	(0,1,0)
15.67	5.6562	14.4	(0,1,-1)
15.69	5.6480	12.3	(0,1,1)
21.42	4.1485	17.2	(1,0,1)
21.61	4.1125	7.3	(0,0,2)
22.86	3.8901	24.4	(0,2,0)
29.55	3.0233	4.2	(1,2,0)
30.83	2.9003	35.8	(1,1,-2)
30.85	2.8981	32.2	(1,1,2)
31.52	2.8387	57.9	(1,2,-1)
31.54	2.8366	48.7	(1,2,1)
31.64	2.8281	17.5	(0,2,-2)
31.68	2.8240	21.1	(0,2,2)
34.68	2.5870	2.3	(0,1,-3)
34.71	2.5846	2.6	(0,1,3)
36.31	2.4744	28.0	(0,3,-1)
36.34	2.4723	31.6	(0,3,1)
37.44	2.4022	65.5	(2,0,0)
37.78	2.3812	100.0	(1,0,3)
40.27	2.2395	1.7	(0,2,3)
40.81	2.2111	2.8	(2,1,-1)
40.82	2.2106	2.4	(2,1,1)
41.06	2.1983	3.0	(1,3,1)
41.12	2.1951	2.0	(0,3,-2)

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Energy Properties

Formation Energy/atom

-0.89275

eV/atom

Energy/atom

-46.50050

eV/atom

Energy above Hull

0.0000

eV/atom

Uncorrected Energy

-46.5005

eV/atom

Volume/atom

25.62

Å³

c/a Ratio

1.7120

Electronic Properties

Metallic

Metal

Band Gap

Direct Gap

CBM

N/A

Magnetic Properties

Magnetic

Yes

Total Mag. Moment

13.8078

μB

Mag. Ordering

Mag. Sites

Magnetization/Volume

0.044910

μB/Å³

Elastic Properties

Elastic data not available

Feature Analysis

Element Composition (atomic fraction)

Composition Info

Major / Matrix Element

Bi · 0.333

Element Family

PostTransition-Noble

Solute Fraction

0.667

Interstitial Fraction

0.000

Composite Radar (normalized)

Element-Class Share

Mix Entropy ΔS/R

1.3297

HEA criterion (>1.0 = high entropy)

Mix Entropy ΔS

11.0548

J/mol·K

Ω Parameter

5.9601

Ω > 1.1 favors solid solution

Atomic Size Mismatch δr

13.691%

δr < 6.6% favors single-phase solid solution

Electronegativity Diff Δχ

0.5228

smaller = more stable mixing

VEC

6.500

valence electron concentration, affects phase stability

Mix Enthalpy ΔH_mix

2.263

kJ/mol; negative = exothermic mixing

Entropy Norm

0.9591

SS Former

Phase Tendency

Related Tasks

Related computation task IDs (1)

aaahfkss

Citation & References

Materials Project Page

https://materialsproject.org/materials/mp-3293958

Reference Citation

The crystal structure and related material properties of SrEu(BiPt)2 were obtained from the Materials Project database (MP-ID: mp-3293958, 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_SrEu(BiPt)2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   4.80440248
_cell_length_b   7.78013792
_cell_length_c   8.22495946
_cell_angle_alpha   90.08351774
_cell_angle_beta   90.00000000
_cell_angle_gamma   90.00000000
_symmetry_Int_Tables_number   1
_chemical_formula_structural   SrEu(BiPt)2
_chemical_formula_sum   'Sr2 Eu2 Bi4 Pt4'
_cell_volume   307.43972519
_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  0.25000000  0.48721517  0.80230017  1.0
  Sr  Sr1  1  0.75000000  0.51278483  0.19769983  1.0
  Eu  Eu2  1  0.75000000  0.01069808  0.30586864  1.0
  Eu  Eu3  1  0.25000000  0.98930192  0.69413136  1.0
  Bi  Bi4  1  0.75000000  0.68276908  0.58969999  1.0
  Bi  Bi5  1  0.25000000  0.31723092  0.41030001  1.0
  Bi  Bi6  1  0.25000000  0.82182323  0.08849698  1.0
  Bi  Bi7  1  0.75000000  0.17817677  0.91150302  1.0
  Pt  Pt8  1  0.75000000  0.80607410  0.91232917  1.0
  Pt  Pt9  1  0.25000000  0.19392590  0.08767083  1.0
  Pt  Pt10  1  0.25000000  0.71074527  0.41658641  1.0
  Pt  Pt11  1  0.75000000  0.28925473  0.58341359  1.0

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