Research/Sitter/MAGNDATA / 0.53_RbyFe2-xSe2.mcif

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Spin lattice of RbyFe2-xSe2Spin lattice of RbyFe2-xSe2

RbyFe2−xSe2

MAGNDATA entry 0.53 · source
altermagnet
No net magnetisation, yet the electron bands are spin-split: the up and down spin sublattices are related only by a rotation or mirror, never by a shift or inversion.
Spin group ²2/²m: each symmetry marked ¹ keeps every spin, ² swaps up and down.
ordered ≤ 560 K (287 °C)Colour: where that sits relative to 25 °C. Saturation: how much margin it has.
Structure · 11 properties
Magnetic groupC 2′/m′ BNS 12.62
Point group2′/m′
Parent space groupI 4/m No. 87
Spinscollinear · 1 nodal planes · net moment 0 μB per cell
Propagation[0 0 0] 1k
Cella 8.7996 · b 8.7996 · c 14.5762 Å · α 90° · β 90° · γ 90°
Transition560 K (287 °C)
Measured at300 K
Magnetic ionsFe
Largest moment component2.08 μB
MethodNPD

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′/m′ →
Atom sites · 9 sites · CSV
siteelementxyzmambmc|m| (μB)
Rb1Rb000
Rb2_1Rb0.3990.8030
Rb2_2Rb0.1970.3990
Fe1Fe00.50.25
Fe2_1Fe0.29580.5920.2524002.082.08
Fe2_2Fe0.4080.29580.252400−2.082.08
Se1_1Se0.3880.7940.6495
Se1_2Se0.2060.3880.6495
Se2Se000.645

Moment components are along the crystal axes a, b, c (μB), as magCIF writes them. Symmetry generates the rest of the cell from these sites.

Source

V.Y. Pomjakushin et al. J. Phys.: Condens. Matter (2011) · doi:10.1088/0953-8984/23/15/156003

Cite the original paper and MAGNDATA, not this mirror.

Original file

⬇ 0.53_RbyFe2-xSe2.mcif from MAGNDATA · entry page

sha256 of this copy: f5cb23ce10a90f7d10ce85dced1053cad46a446deaa2ec921bccfcf85a879717
The mirror keeps the bytes Bilbao served, so the original should hash the same unless MAGNDATA has revised the entry since: shasum -a 256 0.53_RbyFe2-xSe2.mcif.