Research/Sitter/MAGNDATA / 1.313_GdFeZnGe4O12.mcif

GdFeZnGe₄O₁₂

MAGNDATA entry 1.313 · source

antiferromagnet

No net magnetisation, and up and down sublattices are related by a shift or by inversion, so the bands stay spin-degenerate: a conventional antiferromagnet.

Spin group ¹4/¹m¹m¹m × ²1: each symmetry marked ¹ keeps every spin, ² swaps up and down.

ordered ≤ 13.8 K (−259 °C)Colour: where that sits relative to 25 °C. Saturation: how much margin it has.

Structure · 10 properties

Magnetic group	P_b n n a BNS 52.315
Parent space group	P 4/n b m No. 125
Spins	collinear · net moment 0 μ_B per cell
Propagation	[0 0 1/2] 1k
Cell	a 9.7298 · b 9.7298 · c 9.503 Å · α 90° · β 90° · γ 90°
Transition	13.8 K (−259 °C)
Measured at	3.6 K
Magnetic ions	Fe, Gd
Largest moment component	6.02 μ_B
Method	NPD

Symmetry

Stereogram of the magnetic point group: each operation applied to one direction. Filled = upper hemisphere, ring = lower; red operations include time reversal. Lines are mirrors; polygons are 2/3/4/6-fold axes; the centre ring is inversion.

Every structure in P_b n n a →

Atom sites · 8 sites · CSV

site	element	x	y	z	m_a	m_b	m_c	\|m\| (μ_B)
Gd1	Gd	0.25	0.25	0.25	6.02	0	0	6.02
Fe1	Fe	0	0	0.25	3.84	0	0	3.84
Zn1	Zn	0	0	0.25
Ge1_1	Ge	0.5264	0.25	0
Ge1_2	Ge	0.25	0.5264	0
O1	O	0.635	0.365	0.089
O2_1	O	0.154	0.054	0.1295
O2_2	O	0.446	0.154	0.1295

Moment components are along the crystal axes a, b, c (μ_B), as magCIF writes them. Symmetry generates the rest of the cell from these sites.

Source

D. Xu et al. Journal of Solid State Chemistry (2019) · doi:10.1016/j.jssc.2018.11.022

Cite the original paper and MAGNDATA, not this mirror.

Original file

⬇ 1.313_GdFeZnGe4O12.mcif from MAGNDATA · entry page

sha256 of this copy: d9956b5cd02cb47715a255b422a8f8ea65999126c04a6a32e6a86d95c08f1e42
The mirror keeps the bytes Bilbao served, so the original should hash the same unless MAGNDATA has revised the entry since: shasum -a 256 1.313_GdFeZnGe4O12.mcif.