Research/Sitter/MAGNDATA / 1.527_CsNiF3.mcif

CsNiF₃

MAGNDATA entry 1.527 · 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 ¹2/¹m × ²1: each symmetry marked ¹ keeps every spin, ² swaps up and down.

ordered ≤ 2.7 K (−270 °C)Colour: where that sits relative to 25 °C. Saturation: how much margin it has.

Structure · 10 properties

Magnetic group	P_B n n m BNS 58.402
Parent space group	P 6₃/m m c No. 194
Spins	collinear · net moment 0 μ_B per cell
Propagation	[1/2 0 0] 1k
Cell	a 12.472 · b 6.236 · c 5.225 Å · α 90° · β 90° · γ 120°
Transition	2.67 K (−270 °C)
Measured at	1.74 K
Magnetic ions	Ni
Largest moment component	2.25 μ_B
Method	NSD

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 m →

Atom sites · 4 sites · CSV

site	element	x	y	z	m_a	m_b	m_c	\|m\| (μ_B)
Ni1	Ni	0	0	0	0	2.25	0	2.25
Cs1	Cs	0.1667	0.6667	0.75
F1_1	F	0.0716	0.2862	0.25
F1_2	F	0.8569	0.8569	0.25

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

M. Steiner et al. Solid State Communications (1972) · doi:10.1016/0038-1098(72)91133-7

Cite the original paper and MAGNDATA, not this mirror.

Original file

⬇ 1.527_CsNiF3.mcif from MAGNDATA · entry page

sha256 of this copy: 399415f00f408990181fc59548517c36d2055065ae76b30ebba7414150be007d
The mirror keeps the bytes Bilbao served, so the original should hash the same unless MAGNDATA has revised the entry since: shasum -a 256 1.527_CsNiF3.mcif.