Research/Sitter/MAGNDATA / 0.941_Er2O3.mcif

Er₂O₃

MAGNDATA entry 0.941 · source

noncoplanar magnet

Spins pointing in three dimensions, not confined to a plane.

ordered ≤ 3.4 K (−270 °C)Colour: where that sits relative to 25 °C. Saturation: how much margin it has.

Structure · 11 properties

Magnetic group	I a 3 BNS 206.37
Point group	m3
Parent space group	I a 3 No. 206
Spins	noncoplanar · net moment 0 μ_B per cell
Propagation	[0 0 0] 1k
Cell	a 10.547 · b 10.547 · c 10.547 Å · α 90° · β 90° · γ 90°
Transition	3.4 K (−270 °C)
Measured at	1.25 K
Magnetic ions	Er
Largest moment component	5.36 μ_B
Method	NPD and 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 I a 3 →

Atom sites · 3 sites · CSV

site	element	x	y	z	m_a	m_b	m_c	\|m\| (μ_B)
Er1	Er	0.25	0.25	0.25	3.5	3.5	3.5	6.0622
Er2	Er	0.9646	0	0.25	5.36	0	0	5.36
O1	O	0.391	0.152	0.379

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

R. M. Moon et al. Phys. Rev. (1968) · doi:10.1103/PhysRev.176.722

Cite the original paper and MAGNDATA, not this mirror.

Original file

⬇ 0.941_Er2O3.mcif from MAGNDATA · entry page

sha256 of this copy: c504c732705f22d7e02b23e6d085ce756b6298edb1a8569463faa1b6caad34cc
The mirror keeps the bytes Bilbao served, so the original should hash the same unless MAGNDATA has revised the entry since: shasum -a 256 0.941_Er2O3.mcif.