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ErMg2MnH8

Alexandria ALEX

Alex-ID: agm002340752 · Space group: P-3m1 (#164)

Alexandria Database API

Basic Information

Formula
ErMg2MnH8
Alex-ID
agm002340752
Elements
4
Sites
12
Space group
P-3m1 (#164)
Crystal system
trigonal
Volume
99.64
ų
Cell a
4.4562
Å
Cell b
4.4562
Å
Cell c
5.7940
Å
α angle
90.00
°
β angle
90.00
°
γ angle
60.00
°

Composition

Element Composition (atomic fraction)
Composition Info
Formula
ErMg2MnH8
H
8.00 · 66.7%
Mg
2.00 · 16.7%
Mn
1.00 · 8.3%
Er
1.00 · 8.3%

Energy & Stability

Energy above hull
0.0179
eV/atom
Formation energy
-0.4323
eV/atom
Corrected total energy
-48.0272
eV
Raw total energy
-48.0272
eV

Electronic Structure

Indirect band gap
1.2043
eV
Direct band gap
1.7977
eV
DOS at Fermi level
-0.0100
Total magnetisation
-0.0002
μB

Additional Information

Prototype ID

ABC2D8_24_spg164

Decomposition

ErH3 Mn4H3 Mg3MnH7 MnH2

Computed at

2019-02-26 23:17:17

Citation

Alexandria website
https://alexandria.icams.rub.de/
Attribution

The crystal structure and related material properties of this entry were obtained from the Alexandria database (Alex-ID: agm002340752).

Reference

Th. Cavignac, J. Schmidt, P.-P. De Breuck, A. Loew, T. F. T. Cerqueira, H.-C. Wang, A. Bochkarev, Y. Lysogorskiy, A. H. Romero, R. Drautz, S. Botti and M. A. L. Marques. AI-Driven expansion and application of the Alexandria database. J. Phys. Mater. 9, 025014 (2026). https://doi.org/10.1088/2515-7639/ae6620

BibTeX 
@article{Cavignac2026Alexandria,
  author  = {Cavignac, Th{\'e}o and Schmidt, Jonathan and De Breuck, Pierre-Paul and Loew, Antoine
             and Cerqueira, Tiago F. T. and Wang, Hai-Chen and Bochkarev, Anton
             and Lysogorskiy, Yury and Romero, Aldo H. and Drautz, Ralf and Botti, Silvana
             and Marques, Miguel A. L.},
  title   = {{AI}-Driven expansion and application of the {A}lexandria database},
  journal = {Journal of Physics: Materials},
  year    = {2026},
  volume  = {9},
  number  = {2},
  pages   = {025014},
  doi     = {10.1088/2515-7639/ae6620},
  url     = {https://doi.org/10.1088/2515-7639/ae6620}
}

3D Crystal Structure Rendering

Loading 3D structure…

Style: Ball & Stick
Raw CIF Data 
# CIF generated by HEAS from Alexandria entry agm002340752
data_agm002340752
_cell_length_a     4.45624
_cell_length_b     4.45624
_cell_length_c     5.79405
_cell_angle_alpha  90.00045
_cell_angle_beta   90.00050
_cell_angle_gamma  59.99817
_cell_volume       99.64176
_symmetry_space_group_name_H-M 'P 1'
_symmetry_Int_Tables_number 1
loop_
_symmetry_equiv_pos_as_xyz
  'x, y, z'
loop_
_atom_site_label
_atom_site_type_symbol
_atom_site_fract_x
_atom_site_fract_y
_atom_site_fract_z
_atom_site_occupancy
  H1 H 0.83408 0.83407 0.82841 1.00000
  H2 H 0.33186 0.83407 0.82841 1.00000
  H3 H 0.83407 0.33186 0.82841 1.00000
  H4 H 0.16592 0.16593 0.17159 1.00000
  H5 H 0.66814 0.16593 0.17159 1.00000
  H6 H 0.16593 0.66814 0.17159 1.00000
  H7 H 0.66666 0.66666 0.46574 1.00000
  H8 H 0.33334 0.33334 0.53426 1.00000
  Mg1 Mg 0.66667 0.66667 0.12559 1.00000
  Mg2 Mg 0.33333 0.33333 0.87441 1.00000
  Mn1 Mn 0.00000 0.00000 0.00000 1.00000
  Er1 Er 0.00000 0.00000 0.50000 1.00000
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