Research/Sitter/MAGNDATA / 0.1168_Fe2SiSe4.mcif

Fe₂SiSe₄

MAGNDATA entry 0.1168 · 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 ≤ 110 K (−163 °C)Colour: where that sits relative to 25 °C. Saturation: how much margin it has.

Structure · 11 properties

Magnetic group	P n m a1 BNS 62.441
Point group	m m m1
Parent space group	P n m a No. 62
Spins	coplanar · net moment 0 μ_B per cell
Propagation	[0 0 0] 1k
Cell	a 13.02 · b 7.544 · c 6.119 Å · α 90° · β 90° · γ 90°
Transition	110 K (−163 °C)
Measured at	80 K
Magnetic ions	Fe
Largest moment component	4.04 μ_B
Method	NPD. Rietveld refinements were performed with the FULLPROF SUITE and representation analysis with SARAh.

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 n m a1 →

Atom sites · 6 sites · CSV

site	element	x	y	z	m_a	m_b	m_c	\|m\| (μ_B)
Fe1	Fe	0	0	0	0.43	1.38	0	1.4454
Fe2	Fe	0.2283	0.25	0.5116	0	−4.04	0	4.04
Si1	Si	0.4074	0.25	0.0734
Se1	Se	0.4082	0.25	0.7239
Se2	Se	0.5714	0.25	0.2399
Se3	Se	0.3332	0.016	0.2481

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

Feihao Pan et al. Phys. Rev. B (2023) · doi:10.1103/PhysRevB.107.224423

Cite the original paper and MAGNDATA, not this mirror.

Original file

⬇ 0.1168_Fe2SiSe4.mcif from MAGNDATA · entry page

sha256 of this copy: 02b596cc20749c0591f7e3fa140dcdc48b6c3a7f0149c96241911522ee7852b9
The mirror keeps the bytes Bilbao served, so the original should hash the same unless MAGNDATA has revised the entry since: shasum -a 256 0.1168_Fe2SiSe4.mcif.