Research/Sitter/MAGNDATA / 1.345_NaMnF4.mcif

NaMnF₄

MAGNDATA entry 1.345 · source

noncollinear antiferromagnet

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

ordered ≤ 13 K (−260 °C)Colour: where that sits relative to 25 °C. Saturation: how much margin it has.

Structure · 10 properties

Magnetic group	P_a 2₁/c BNS 14.80
Parent space group	P 2₁/c No. 14
Spins	coplanar · net moment 0 μ_B per cell
Propagation	[1/2 0 0] 1k
Cell	a 11.51 · b 4.892 · c 5.76 Å · α 90° · β 108.62° · γ 90°
Transition	13 K (−260 °C)
Measured at	4 K
Magnetic ions	Mn
Largest moment component	3.7 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_a 2₁/c →

Atom sites · 4 sites · CSV

site	element	x	y	z	m_a	m_b	m_c	\|m\| (μ_B)
Na1	Na	0.25	0	0.5
Mn1	Mn	0	0	0	1	0.4	3.7	3.5337
F1	F	0.439	0.767	0.66
F2	F	0.152	0.651	0.615

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. Molinier et al. Zeitschrift fuer Naturforschung B (1991) · doi:10.1515/znb-1991-1214

Cite the original paper and MAGNDATA, not this mirror.

Original file

⬇ 1.345_NaMnF4.mcif from MAGNDATA · entry page

sha256 of this copy: 0237ba6937774b5f4861e4c395bcff620714b2be2dd6790f4be45a40656a6410
The mirror keeps the bytes Bilbao served, so the original should hash the same unless MAGNDATA has revised the entry since: shasum -a 256 1.345_NaMnF4.mcif.