EuAg

Traditional Materials TRA

MP-ID: mp-665747 · Space group: Pnma (#62)

Materials Project API

Basic Information

Formula

EuAg

MP-ID

mp-665747

Elements

Sites

Density

7.4379

g/cm³

Volume

232.04

Å³

Cell a

4.7120

Cell b

6.1554

Cell c

8.0000

α Angle

89.99

β Angle

90.00

γ Angle

90.00

Space Group

Pnma

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
18.18	4.8790	6.6	(0,1,1)
18.19	4.8780	6.6	(0,1,-1)
23.78	3.7416	5.9	(1,1,0)
26.29	3.3894	26.5	(1,1,1)
26.30	3.3891	26.5	(1,1,-1)
26.57	3.3543	6.2	(0,1,2)
26.58	3.3537	6.2	(0,1,-2)
29.29	3.0494	100.0	(1,0,2)
31.13	2.8727	40.4	(0,2,1)
31.14	2.8723	40.4	(0,2,-1)
32.77	2.7327	55.7	(1,1,2)
32.78	2.7323	55.7	(1,1,-2)
36.64	2.4528	60.4	(1,2,1)
36.64	2.4526	60.3	(1,2,-1)
36.73	2.4471	25.6	(0,1,3)
36.73	2.4467	25.6	(0,1,-3)
38.20	2.3560	62.0	(2,0,0)
41.59	2.1717	7.6	(1,1,3)
41.59	2.1714	7.6	(1,1,-3)
42.61	2.1216	1.3	(2,1,1)
42.62	2.1215	1.3	(2,1,-1)
47.14	1.9280	2.7	(2,1,2)
47.14	1.9278	2.7	(2,1,-2)
47.82	1.9022	13.8	(0,1,4)

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Energy Properties

Formation Energy/atom

-0.30951

eV/atom

Energy/atom

-30.24789

eV/atom

Energy above Hull

0.0000

eV/atom

Uncorrected Energy

-30.2479

eV/atom

Volume/atom

29.00

Å³

c/a Ratio

1.6978

Electronic Properties

Metallic

Metal

Band Gap

Direct Gap

CBM

N/A

Magnetic Properties

Magnetic

Yes

Total Mag. Moment

29.4504

μB

Mag. Ordering

Unknown

Mag. Sites

Magnetization/Volume

0.126920

μB/Å³

Elastic Properties

Elastic data not available

Feature Analysis

Composition Overview

Element Composition (atomic fraction)

Composition Info

Major / Matrix Element

Eu · 0.500

Element Family

N/A

Solute Fraction

0.500

Interstitial Fraction

0.000

Traditional Material Features

ROM Blended-Feature Radar

Rating & Classification

Tier

Score

0.624

Family

Binary Alloy

Matrix Element

Eu · 0.500

Related Tasks

Related computation task IDs (2)

aaaeljhu aaafaepi

Citation & References

Materials Project Page

https://materialsproject.org/materials/mp-665747

Reference Citation

The crystal structure and related material properties of EuAg were obtained from the Materials Project database (MP-ID: mp-665747, 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_EuAg
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   4.71200782
_cell_length_b   6.15542763
_cell_length_c   7.99999891
_cell_angle_alpha   89.98836649
_cell_angle_beta   90.00000000
_cell_angle_gamma   90.00000000
_symmetry_Int_Tables_number   1
_chemical_formula_structural   EuAg
_chemical_formula_sum   'Eu4 Ag4'
_cell_volume   232.03534844
_cell_formula_units_Z   4
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
  Eu  Eu0  1  0.75000000  0.86750709  0.82029287  1.0
  Eu  Eu1  1  0.25000000  0.36745476  0.67969951  1.0
  Eu  Eu2  1  0.75000000  0.63254524  0.32030049  1.0
  Eu  Eu3  1  0.25000000  0.13249291  0.17970713  1.0
  Ag  Ag4  1  0.25000000  0.62650763  0.03570675  1.0
  Ag  Ag5  1  0.75000000  0.12652738  0.46429364  1.0
  Ag  Ag6  1  0.75000000  0.37349237  0.96429325  1.0
  Ag  Ag7  1  0.25000000  0.87347262  0.53570636  1.0

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