Research/Sitter/MAGNDATA / 0.105_ErVO3.mcif

ErVO₃

MAGNDATA entry 0.105 · source

altermagnet

No net magnetisation, yet the electron bands are spin-split: the up and down spin sublattices are related only by a rotation or mirror, never by a shift or inversion.

Spin group ²2/²m: each symmetry marked ¹ keeps every spin, ² swaps up and down.

ordered ≤ 60 K (−213 °C)Colour: where that sits relative to 25 °C. Saturation: how much margin it has.

Structure · 11 properties

Magnetic group	P 2₁/c BNS 14.75
Point group	2/m
Parent space group	P b n m No. 62
Spins	collinear · 1 nodal planes · net moment 0 μ_B per cell
Propagation	[0 0 0] 1k
Cell	a 5.2644 · b 5.5856 · c 7.5716 Å · α 90° · β 90° · γ 90°
Transition	60 K (−213 °C)
Measured at	1.6 K
Magnetic ions	Er, V
Largest moment component	8.2 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 P 2₁/c →

Atom sites · 6 sites · CSV

site	element	x	y	z	m_a	m_b	m_c	\|m\| (μ_B)
Er1	Er	0.9798	0.0694	0.25	0	0	8.2	8.2
V1_1	V	0.5	0	0	0	0	1.47	1.47
V1_2	V	0.5	0	0.5	0	0	−1.47	1.47
O1	O	0.1124	0.4596	0.25
O2_1	O	0.69	0.3043	0.0566
O2_2	O	0.31	0.6957	0.5566

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

M. Reehuis et al. PHYSICAL REVIEW B (2011) · doi:10.1103/PhysRevB.83.064404

Cite the original paper and MAGNDATA, not this mirror.

Original file

⬇ 0.105_ErVO3.mcif from MAGNDATA · entry page

sha256 of this copy: f9862f192e8c7975c2dbe696d980752090e58b53be6bd76307782e3f4438d1da
The mirror keeps the bytes Bilbao served, so the original should hash the same unless MAGNDATA has revised the entry since: shasum -a 256 0.105_ErVO3.mcif.