Research/Sitter/MAGNDATA / 0.615_FeCr2S4.mcif

FeCr₂S₄

MAGNDATA entry 0.615 · source

s-wave ferrimagnet

Opposite moments of different size leave a net magnetisation.

Spin group ¹m¹3̄¹m: each symmetry marked ¹ keeps every spin, ² swaps up and down.

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

Structure · 10 properties

Magnetic group	I 4₁/a m′ d′ BNS 141.557
Parent space group	F d 3 m No. 227
Spins	collinear · net moment 12.32 μ_B per cell
Propagation	[0 0 0] 1k
Cell	a 9.98018 · b 9.98018 · c 9.98018 Å · α 90° · β 90° · γ 90°
Transition	180 K (−93 °C)
Measured at	15 K
Magnetic ions	Cr, Fe
Largest moment component	3.72 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 I 4₁/a m′ d′ →

Atom sites · 3 sites · CSV

site	element	x	y	z	m_a	m_b	m_c	\|m\| (μ_B)
Fe1	Fe	0.125	0.125	0.125	0	0	−3.72	3.72
Cr1	Cr	0.5	0.5	0.5	0	0	2.63	2.63
S1	S	0.2586	0.2586	0.2586

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

J. Bertinshaw et al. SCIENTIFIC REPORTS (2002) · doi:10.1038/srep06079

Cite the original paper and MAGNDATA, not this mirror.

Original file

⬇ 0.615_FeCr2S4.mcif from MAGNDATA · entry page

sha256 of this copy: 55d58a142f291fa0c0b51c632a63bde62e4e0c51f1e6cc064710edbc1dcadbf2
The mirror keeps the bytes Bilbao served, so the original should hash the same unless MAGNDATA has revised the entry since: shasum -a 256 0.615_FeCr2S4.mcif.