Research/Sitter/MAGNDATA / 2.66_FeSn2.mcif

FeSn₂

MAGNDATA entry 2.66 · 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 ≤ 93 K (−180 °C)Colour: where that sits relative to 25 °C. Saturation: how much margin it has.

Structure · 10 properties

Magnetic group	C c′ c a BNS 68.513
Parent space group	I 4/m c m No. 140
Spins	coplanar · net moment 0 μ_B per cell
Propagation	[1 1 1] · [0 0 0] 2k
Cell	a 6.537 · b 6.537 · c 5.316 Å · α 90° · β 90° · γ 90°
Transition	93 K (−180 °C)
Measured at	5 K
Magnetic ions	Fe
Largest moment component	1.46 μ_B
Method	NPD and Mossbauer spectrosc.

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 C c′ c a →

Atom sites · 3 sites · CSV

site	element	x	y	z	m_a	m_b	m_c	\|m\| (μ_B)
Fe1	Fe	0	0	0.25	1.46	0.74	0	1.6368
Sn1_1	Sn	0.1611	0.6611	0
Sn1_2	Sn	0.3389	0.1611	0

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

G Venturini et al. J. Phys. F: Met. Phys. (1985) · doi:10.1088/0305-4608/15/2/016

Cite the original paper and MAGNDATA, not this mirror.

Original file

⬇ 2.66_FeSn2.mcif from MAGNDATA · entry page

sha256 of this copy: 15ccb78fb76ce2b2eb79469b4158ea369bfb5598c65c1edceeb3be08b701bcaf
The mirror keeps the bytes Bilbao served, so the original should hash the same unless MAGNDATA has revised the entry since: shasum -a 256 2.66_FeSn2.mcif.