Research/Sitter/MAGNDATA / 0.207_TlFe1.6Se2.mcif

TlFe_1.6Se₂

MAGNDATA entry 0.207 · 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 ≤ 100 K (−173 °C)Colour: where that sits relative to 25 °C. Saturation: how much margin it has.

Structure · 10 properties

Magnetic group	I 4/m BNS 87.75
Parent space group	I 4/m No. 87
Spins	coplanar · net moment 0 μ_B per cell
Propagation	[0 0 0] 1k
Cell	a 8.627 · b 8.627 · c 13.822 Å · α 90° · β 90° · γ 90°
Transition	100 K (−173 °C)
Measured at	5 K
Magnetic ions	Fe
Largest moment component	2.678 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 I 4/m →

Atom sites · 5 sites · CSV

site	element	x	y	z	m_a	m_b	m_c	\|m\| (μ_B)
Tl1	Tl	0	0	0
Tl2	Tl	0.1942	0.3937	0
Fe1	Fe	0.0925	0.1964	0.2457	1.42	−2.678	0	3.0312
Se1	Se	0	0	0.3658
Se2	Se	0.1983	0.3905	0.3556

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

A.F. May et al. PHYSICAL REVIEW LETTERS (2012) · doi:10.1103/PhysRevLett.109.077003

Cite the original paper and MAGNDATA, not this mirror.

Original file

⬇ 0.207_TlFe1.6Se2.mcif from MAGNDATA · entry page

sha256 of this copy: 082ce8004382609c22f55ec63d826fb997edc726c78e51de4e06f8a8529b2651
The mirror keeps the bytes Bilbao served, so the original should hash the same unless MAGNDATA has revised the entry since: shasum -a 256 0.207_TlFe1.6Se2.mcif.