Research/Sitter/MAGNDATA / 0.327_CsMnF4.mcif

CsMnF₄

MAGNDATA entry 0.327 · source

s-wave ferromagnet

All moments add up to a net magnetisation: an ordinary magnet. Spin splitting is the same in every direction (s-wave).

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

ordered ≤ 18.9 K (−254 °C)Colour: where that sits relative to 25 °C. Saturation: how much margin it has.

Structure · 10 properties

Magnetic group	P m m′ n′ BNS 59.410
Parent space group	P 4/n m m No. 129
Spins	collinear · net moment 16 μ_B per cell
Propagation	[0 0 0] 1k
Cell	a 7.944 · b 7.944 · c 6.3376 Å · α 90° · β 90° · γ 90°
Transition	18.9 K (−254 °C)
Measured at	2.2 K
Magnetic ions	Mn
Largest moment component	4 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 m m′ n′ →

Atom sites · 6 sites · CSV

site	element	x	y	z	m_a	m_b	m_c	\|m\| (μ_B)
Mn1	Mn	0	0	0	4	0	0	4
Cs1	Cs	0.75	0.25	0.5
Cs2	Cs	0.25	0.25	0.4494
F1_1	F	0.25	0.9967	0.048
F1_2	F	0.5033	0.25	0.048
F2	F	0.9724	0.9724	0.2814

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

W. Massa et al. J. Solid State Chem. (1980)

Cite the original paper and MAGNDATA, not this mirror.

Original file

⬇ 0.327_CsMnF4.mcif from MAGNDATA · entry page

sha256 of this copy: 78bf2bfef97d30a04195e6e8a04cf34ead6c98db7af404bf7f07b6d892f904fc
The mirror keeps the bytes Bilbao served, so the original should hash the same unless MAGNDATA has revised the entry since: shasum -a 256 0.327_CsMnF4.mcif.