Research/Sitter/MAGNDATA / 0.487_ErCr2Si2.mcif

ErCr₂Si₂

MAGNDATA entry 0.487 · source

noncollinear ferrimagnet

Opposite moments of different size leave a net magnetisation.

ordered ≤ 2.4 K (−271 °C)Colour: where that sits relative to 25 °C. Saturation: how much margin it has.

Structure · 10 properties

Magnetic group	I m′ m′ 2 BNS 44.232
Parent space group	I 4/m m m No. 139
Spins	coplanar · net moment 10.48 μ_B per cell
Propagation	[0 0 0] 1k
Cell	a 3.895 · b 3.895 · c 10.632 Å · α 90° · β 90° · γ 90°
Transition	2.4 K (−271 °C)
Measured at	2 K
Magnetic ions	Cr, Er
Largest moment component	5.24 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 m′ m′ 2 →

Atom sites · 3 sites · CSV

site	element	y	z	m_a	m_b	m_c	\|m\| (μ_B)
Er1	Er	0	0	5.24	0	0	5.24
Cr1	Cr	0.5	0.25	0	0	−1.35	1.35
Si1	Si	0	0.3888

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

O. Moze et al. Eur. Phys. J. B (2003) · doi:10.1140/epjb/e2004-00006-4

Cite the original paper and MAGNDATA, not this mirror.

Original file

⬇ 0.487_ErCr2Si2.mcif from MAGNDATA · entry page

sha256 of this copy: 3c29632fc3aabb572778e465229b6063461d57b3a3ab2e8ba4150c2ed6595cec
The mirror keeps the bytes Bilbao served, so the original should hash the same unless MAGNDATA has revised the entry since: shasum -a 256 0.487_ErCr2Si2.mcif.