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Ca2NdF7

Alexandria ALEX

Alex-ID: agm005257293 · Space group: P3m1 (#156)

Basic Information

Formula
Ca2NdF7
Alex-ID
agm005257293
Elements
3
Sites
30
Space group
P3m1 (#156)
Crystal system
trigonal
Volume
413.86
ų
Cell a
3.9382
Å
Cell b
3.9382
Å
Cell c
30.8030
Å
α angle
89.89
°
β angle
89.89
°
γ angle
60.03
°

Composition

Element Composition (atomic fraction)
Composition Info
Formula
Ca2NdF7
Ca
6.00 · 20.0%
Nd
3.00 · 10.0%
F
21.00 · 70.0%

Energy & Stability

Energy above hull
0.1375
eV/atom
Formation energy
-4.1895
eV/atom
Corrected total energy
-181.8456
eV
Raw total energy
-181.8456
eV

Electronic Structure

Indirect band gap
5.0427
eV
Direct band gap
5.2629
eV
DOS at Fermi level
0.0000
Total magnetisation
0.0796
μB

Additional Information

Prototype ID

AB2C7_214_spg8

Decomposition

NdF3 CaF2

Computed at

2023-05-14 03:32:09.929413

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: agm005257293).

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 agm005257293
data_agm005257293
_cell_length_a     3.93820
_cell_length_b     3.93820
_cell_length_c     30.80301
_cell_angle_alpha  89.88893
_cell_angle_beta   89.88893
_cell_angle_gamma  60.03035
_cell_volume       413.85861
_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
  Ca1 Ca 0.96401 0.96401 0.02006 1.00000
  Ca2 Ca 0.29610 0.29610 0.12755 1.00000
  Ca3 Ca 0.62831 0.62831 0.22994 1.00000
  Ca4 Ca 0.96064 0.96064 0.33257 1.00000
  Ca5 Ca 0.29386 0.29386 0.43426 1.00000
  Ca6 Ca 0.63108 0.63108 0.91754 1.00000
  Nd1 Nd 0.62765 0.62765 0.55753 1.00000
  Nd2 Nd 0.29835 0.29835 0.80780 1.00000
  Nd3 Nd 0.96484 0.96484 0.68305 1.00000
  F1 F 0.96314 0.96314 0.09816 1.00000
  F2 F 0.62920 0.62920 0.15064 1.00000
  F3 F 0.29524 0.29524 0.20168 1.00000
  F4 F 0.96140 0.96140 0.25301 1.00000
  F5 F 0.62741 0.62741 0.40561 1.00000
  F6 F 0.62761 0.62761 0.30375 1.00000
  F7 F 0.29390 0.29390 0.35394 1.00000
  F8 F 0.96095 0.96095 0.55833 1.00000
  F9 F 0.96028 0.96028 0.45516 1.00000
  F10 F 0.29387 0.29387 0.51296 1.00000
  F11 F 0.29800 0.29800 0.68687 1.00000
  F12 F 0.29414 0.29414 0.59478 1.00000
  F13 F 0.62872 0.62872 0.63819 1.00000
  F14 F 0.63167 0.63167 0.81281 1.00000
  F15 F 0.63153 0.63153 0.71991 1.00000
  F16 F 0.96498 0.96498 0.76310 1.00000
  F17 F 0.96432 0.96432 0.94027 1.00000
  F18 F 0.96481 0.96481 0.84439 1.00000
  F19 F 0.29794 0.29794 0.88687 1.00000
  F20 F 0.29767 0.29767 0.99115 1.00000
  F21 F 0.63044 0.63044 0.04090 1.00000
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