Research/Sitter/MAGNDATA / 0.638_RbFeSe2.mcif

RbFeSe₂

MAGNDATA entry 0.638 · source

antiferromagnet

No net magnetisation, and up and down sublattices are related by a shift or by inversion, so the bands stay spin-degenerate: a conventional antiferromagnet.

Spin group ¹2/¹m × ²1: each symmetry marked ¹ keeps every spin, ² swaps up and down.

ordered ≤ 249 K (−24 °C)Colour: where that sits relative to 25 °C. Saturation: how much margin it has.

Structure · 10 properties

Magnetic group	C 2/c′ BNS 15.88
Parent space group	C 2/c No. 15
Spins	collinear · net moment 0 μ_B per cell
Propagation	[0 0 0] 1k
Cell	a 7.389 · b 11.918 · c 5.629 Å · α 90° · β 112.55° · γ 90°
Transition	249 K (−24 °C)
Measured at	14 K
Magnetic ions	Fe
Largest moment component	2.66 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 C 2/c′ →

Atom sites · 3 sites · CSV

site	element	x	y	z	m_a	m_b	m_c	\|m\| (μ_B)
Fe1	Fe	0	0.999	0.25	0	2.66	0	2.66
Rb1	Rb	0	0.3596	0.25
Se1	Se	0.1992	0.1105	0.1056

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

W. Bronger et al. JOURNAL OF SOLID STATE CHEMISTRY (1987) · doi:10.1016/0022-4596(87)90065-X

Cite the original paper and MAGNDATA, not this mirror.

Original file

⬇ 0.638_RbFeSe2.mcif from MAGNDATA · entry page

sha256 of this copy: 9a988b5a0579b4e45320d29cce5c2ebc31c3828a6a580b904b19c31f4a4eab36
The mirror keeps the bytes Bilbao served, so the original should hash the same unless MAGNDATA has revised the entry since: shasum -a 256 0.638_RbFeSe2.mcif.