Research/Sitter/MAGNDATA / 1.900_Cs2AgFeCl6.mcif

Cs₂AgFeCl₆

MAGNDATA entry 1.900 · 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 ≤ 17.5 K (−256 °C)Colour: where that sits relative to 25 °C. Saturation: how much margin it has.

Structure · 10 properties

Magnetic group	P_I n n m BNS 58.404
Parent space group	F m 3 m No. 225
Spins	collinear · net moment 0 μ_B per cell
Propagation	[0 0 1] 1k
Cell	a 7.2285 · b 7.2285 · c 10.1914 Å · α 90° · β 90° · γ 90°
Transition	17.5 K (−256 °C)
Measured at	1.5 K
Magnetic ions	Fe
Largest moment component	3.5 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_I n n m →

Atom sites · 5 sites · CSV

site	element	x	y	z	m_a	m_b	m_c	\|m\| (μ_B)
Fe1	Fe	0	0	0	0	3.5	0	3.5
Ag1	Ag	0	0	0.5
Cs1	Cs	0	0.5	0.25
Cl1	Cl	0.234	0.766	0
Cl2	Cl	0	0	0.234

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

Chem. Mater. (2025) · doi:10.1021/acs.chemmater.5c00610

Cite the original paper and MAGNDATA, not this mirror.

Original file

⬇ 1.900_Cs2AgFeCl6.mcif from MAGNDATA · entry page

sha256 of this copy: c59093aeffe9b544f31f1a55dabfe12e580897a673ebddd37bd743ba5ffdfbcc
The mirror keeps the bytes Bilbao served, so the original should hash the same unless MAGNDATA has revised the entry since: shasum -a 256 1.900_Cs2AgFeCl6.mcif.