Research/Sitter/MAGNDATA / 0.590_ErCrO3.mcif

ErCrO₃

MAGNDATA entry 0.590 · source

noncollinear antiferromagnet

All moments add up to a net magnetisation: an ordinary magnet. Spin splitting is the same in every direction (s-wave).

ordered ≤ 16.8 K (−256 °C)Colour: where that sits relative to 25 °C. Saturation: how much margin it has.

Structure · 10 properties

Magnetic group	P 2₁/m BNS 11.50
Parent space group	P b n m No. 62
Spins	coplanar · net moment 0 μ_B per cell
Propagation	[0 0 0] 1k
Cell	a 5.223 · b 5.516 · c 7.519 Å · α 90° · β 90° · γ 90°
Transition	16.8 K (−256 °C)
Measured at	4.2 K
Magnetic ions	Cr, Er
Largest moment component	5.2 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 P 2₁/m →

Atom sites · 8 sites · CSV

site	element	x	y	z	m_a	m_b	m_c	\|m\| (μ_B)
Er1_1	Er	0.483	0.431	0.75	0	0	−5.2	5.2
Er1_2	Er	0.983	0.069	0.25	0	0	5.2	5.2
Cr1_1	Cr	0.5	0	0	1.66	2.38	0	2.9017
Cr1_2	Cr	0	0.5	0	−1.66	−2.38	0	2.9017
O1_1	O	0.609	0.037	0.75
O1_2	O	0.109	0.463	0.25
O2_1	O	0.692	0.298	0.05
O2_2	O	0.192	0.202	0.95

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

E. F. Bertaut et al. Solid State Communications (1967) · doi:10.1016/0038-1098(67)90001-4

Cite the original paper and MAGNDATA, not this mirror.

Original file

⬇ 0.590_ErCrO3.mcif from MAGNDATA · entry page

sha256 of this copy: 5127c54daa57f267e4e91b4f7d03ad1df171022116d97dc3f993784d8fd84ee6
The mirror keeps the bytes Bilbao served, so the original should hash the same unless MAGNDATA has revised the entry since: shasum -a 256 0.590_ErCrO3.mcif.