Research/Sitter/MAGNDATA / 1.1.16_CeRhIn5.mcif

CeRhIn₅

MAGNDATA entry 1.1.16 · source

incommensurate spiral

Incommensurate: the magnetic pattern repeats every so many cells, but not a whole number of them, so it never lines up with the crystal lattice. Here it's a spiral: the spin direction rotates as you move along.

ordered ≤ 3.8 K (−269 °C)Colour: where that sits relative to 25 °C. Saturation: how much margin it has.

Structure · 11 properties

Magnetic group	P4221′(1/2,1/2,γ)q00s
Point group	4221′
Parent space group	P 4/m m m No. 123
Repeats every	2 cells along a (not a whole number: that's what incommensurate means)
Propagation	[0.5 0.5 0.297] 1k
Cell	a 4.6551 · b 4.6551 · c 7.5426 Å · α 90° · β 90° · γ 90°
Transition	3.8 K (−269 °C)
Measured at	1.4 K
Magnetic ions	Ce
Largest moment component	0.75 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 P4221′(1/2,1/2,γ)q00s →

Atom sites · 4 sites · CSV

site	element	x	y	z
Ce1	Ce	0	0	0
Rh1	Rh	0	0	0.5
In1	In	0.5	0.5	0
In2	In	0	0.5	0.3059

Incommensurate: the moments are modulated; the picture evaluates each atom's Fourier series at its own phase.

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. Bao et al. PHYSICAL REVIEW B (2000) · doi:10.1103/PhysRevB.62.R14621

Cite the original paper and MAGNDATA, not this mirror.

Original file

⬇ 1.1.16_CeRhIn5.mcif from MAGNDATA · entry page

sha256 of this copy: 082055e355f242ed0e34e3b1e8f0ed028672037fef1949100a217febb16c41b7
The mirror keeps the bytes Bilbao served, so the original should hash the same unless MAGNDATA has revised the entry since: shasum -a 256 1.1.16_CeRhIn5.mcif.