Y3Ti(P3Pd4)2

High-Entropy Materials HEA

MP-ID: mp-3295255 · Space group: Pmmn (#59)

Materials Project API

Basic Information

Formula

Y3Ti(P3Pd4)2

MP-ID

mp-3295255

Elements

Sites

Density

7.6173

g/cm³

Volume

589.37

Å³

Cell a

3.9420

Cell b

11.2987

Cell c

13.2324

α Angle

90.00

β Angle

90.00

γ Angle

90.00

Space Group

Pmmn

Point Group

mmm

Crystal System

Orthorhombic

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
13.38	6.6162	3.3	(0,0,2)
15.52	5.7094	3.6	(0,1,2)
20.13	4.4108	5.7	(0,0,3)
23.55	3.7779	2.2	(1,0,1)
24.58	3.6224	1.5	(0,3,1)
25.62	3.4766	1.4	(0,2,3)
26.95	3.3081	6.5	(0,0,4)
27.25	3.2731	12.4	(0,3,2)
28.42	3.1404	5.9	(1,2,1)
30.41	2.9392	1.5	(1,0,3)
30.78	2.9046	2.6	(1,2,2)
34.39	2.6074	2.7	(1,2,3)
34.53	2.5978	3.2	(0,4,2)
34.82	2.5767	1.4	(0,1,5)
35.42	2.5340	43.6	(1,0,4)
35.65	2.5182	100.0	(1,3,2)
36.33	2.4726	7.7	(1,1,4)
37.53	2.3966	7.3	(0,2,5)
37.82	2.3787	1.1	(0,4,3)
38.87	2.3171	3.0	(1,3,3)
38.95	2.3121	4.5	(1,2,4)
39.85	2.2623	4.5	(1,4,1)
40.50	2.2275	5.0	(0,5,1)
41.73	2.1646	2.6	(0,1,6)

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Energy Properties

Formation Energy/atom

-1.04693

eV/atom

Energy/atom

-18.35664

eV/atom

Energy above Hull

0.0000

eV/atom

Uncorrected Energy

-18.3566

eV/atom

Volume/atom

16.37

Å³

c/a Ratio

3.3568

Electronic Properties

Metallic

Metal

Band Gap

Direct Gap

CBM

N/A

Magnetic Properties

Magnetic

Total Mag. Moment

0.0030

μB

Mag. Ordering

Mag. Sites

Magnetization/Volume

0.000010

μB/Å³

Elastic Properties

Elastic data not available

Feature Analysis

Composition Overview

Element Composition (atomic fraction)

Composition Info

Major / Matrix Element

Pd · 0.444

Element Family

4d-TM

Solute Fraction

0.556

Interstitial Fraction

0.333

High-Entropy Alloy Features

Composite Radar (normalized)

Element-Class Share

Mix Entropy ΔS/R

1.1858

HEA criterion (>1.0 = high entropy)

Mix Entropy ΔS

9.8589

J/mol·K

Ω Parameter

0.2845

Ω > 1.1 favors solid solution

Atomic Size Mismatch δr

17.359%

δr < 6.6% favors single-phase solid solution

Electronegativity Diff Δχ

0.3781

smaller = more stable mixing

VEC

6.833

valence electron concentration, affects phase stability

Mix Enthalpy ΔH_mix

-45.943

kJ/mol; negative = exothermic mixing

Entropy Norm

0.8554

SS Former

Phase Tendency

Related Tasks

Related computation task IDs (1)

aaahfmqp

Citation & References

Materials Project Page

https://materialsproject.org/materials/mp-3295255

Reference Citation

The crystal structure and related material properties of Y3Ti(P3Pd4)2 were obtained from the Materials Project database (MP-ID: mp-3295255, 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

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Raw CIF Data

# generated using pymatgen
data_Y3Ti(P3Pd4)2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   3.94201255
_cell_length_b   11.29871719
_cell_length_c   13.23240814
_cell_angle_alpha   90.00000000
_cell_angle_beta   90.00000000
_cell_angle_gamma   90.00000000
_symmetry_Int_Tables_number   1
_chemical_formula_structural   Y3Ti(P3Pd4)2
_chemical_formula_sum   'Y6 Ti2 P12 Pd16'
_cell_volume   589.36728969
_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
  Y  Y0  1  0.00000000  0.50000000  0.52031357  1.0
  Y  Y1  1  0.50000000  0.00000000  0.47968643  1.0
  Y  Y2  1  0.50000000  0.81571577  0.20633202  1.0
  Y  Y3  1  0.50000000  0.18428423  0.20633202  1.0
  Y  Y4  1  0.00000000  0.68428423  0.79366798  1.0
  Y  Y5  1  0.00000000  0.31571577  0.79366798  1.0
  Ti  Ti6  1  0.50000000  0.50000000  0.15797801  1.0
  Ti  Ti7  1  0.00000000  0.00000000  0.84202199  1.0
  P  P8  1  0.50000000  0.50000000  0.87181225  1.0
  P  P9  1  0.00000000  0.00000000  0.12818775  1.0
  P  P10  1  0.50000000  0.50000000  0.35015090  1.0
  P  P11  1  0.00000000  0.00000000  0.64984910  1.0
  P  P12  1  0.50000000  0.31975104  0.61645811  1.0
  P  P13  1  0.50000000  0.68024896  0.61645811  1.0
  P  P14  1  0.00000000  0.18024896  0.38354189  1.0
  P  P15  1  0.00000000  0.81975104  0.38354189  1.0
  P  P16  1  0.50000000  0.85022472  0.88248138  1.0
  P  P17  1  0.50000000  0.14977528  0.88248138  1.0
  P  P18  1  0.00000000  0.64977528  0.11751862  1.0
  P  P19  1  0.00000000  0.35022472  0.11751862  1.0
  Pd  Pd20  1  0.50000000  0.50000000  0.69875206  1.0
  Pd  Pd21  1  0.00000000  0.00000000  0.30124794  1.0
  Pd  Pd22  1  0.00000000  0.50000000  0.98936003  1.0
  Pd  Pd23  1  0.50000000  0.00000000  0.01063997  1.0
  Pd  Pd24  1  0.50000000  0.32899934  0.97114039  1.0
  Pd  Pd25  1  0.50000000  0.67100066  0.97114039  1.0
  Pd  Pd26  1  0.00000000  0.17100066  0.02885961  1.0
  Pd  Pd27  1  0.00000000  0.82899934  0.02885961  1.0
  Pd  Pd28  1  0.50000000  0.30345130  0.43392382  1.0
  Pd  Pd29  1  0.50000000  0.69654870  0.43392382  1.0
  Pd  Pd30  1  0.00000000  0.19654870  0.56607618  1.0
  Pd  Pd31  1  0.00000000  0.80345130  0.56607618  1.0
  Pd  Pd32  1  0.50000000  0.87412346  0.70580976  1.0
  Pd  Pd33  1  0.50000000  0.12587654  0.70580976  1.0
  Pd  Pd34  1  0.00000000  0.62587654  0.29419024  1.0
  Pd  Pd35  1  0.00000000  0.37412346  0.29419024  1.0

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