Research/Sitter/MAGNDATA / 1.188_CeRh2Si2.mcif

CeRh₂Si₂

MAGNDATA entry 1.188 · 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 ¹m¹m¹m × ²1: each symmetry marked ¹ keeps every spin, ² swaps up and down.

ordered ≤ 36 K (−237 °C)Colour: where that sits relative to 25 °C. Saturation: how much margin it has.

Structure · 11 properties

Magnetic group	C_A m c a BNS 64.480
Point group	mmm1′
Parent space group	I 4/m m m No. 139
Spins	collinear · net moment 0 μ_B per cell
Propagation	[1/2 1/2 0] 1k
Cell	a 8.15 · b 8.15 · c 10.13 Å · α 90° · β 90° · γ 90°
Transition	36 K (−237 °C)
Measured at	10 K
Magnetic ions	Ce
Largest moment component	1.5 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_A m c a →

Atom sites · 3 sites · CSV

site	element	y	z	m_a	m_b	m_c	\|m\| (μ_B)
Ce1	Ce	0	0	0	0	1.5	1.5
Rh1	Rh	0.25	0.25
Si1	Si	0	0.375

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

S. Quezel et al. Solid State Communications (1984) · doi:10.1016/0038-1098(84)90221-7

Cite the original paper and MAGNDATA, not this mirror.

Original file

⬇ 1.188_CeRh2Si2.mcif from MAGNDATA · entry page

sha256 of this copy: 92e674d811d622d2cfdb11011b8a83533f7397011adb7ffcfb543fa385b61fa8
The mirror keeps the bytes Bilbao served, so the original should hash the same unless MAGNDATA has revised the entry since: shasum -a 256 1.188_CeRh2Si2.mcif.