Research/Sitter/MAGNDATA / 0.416_LaCrO3.mcif

LaCrO₃

MAGNDATA entry 0.416 · 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 ¹3̄²m: each symmetry marked ¹ keeps every spin, ² swaps up and down.

ordered ≤ 380 K (107 °C)Colour: where that sits relative to 25 °C. Saturation: how much margin it has.

Structure · 10 properties

Magnetic group	R 3 c BNS 167.103
Parent space group	R 3 c No. 167
Spins	collinear · 3 nodal planes · net moment 0 μ_B per cell
Propagation	[0 0 0] 1k
Cell	a 5.4599 · b 5.4599 · c 13.1307 Å · α 90° · β 90° · γ 120°
Transition	380 K (107 °C)
Measured at	295 K
Magnetic ions	Cr
Largest moment component	1.67 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 R 3 c →

Atom sites · 3 sites · CSV

site	element	x	z	m_a	m_b	m_c	\|m\| (μ_B)
La1	La	0	0.25
Cr1	Cr	0	0	0	0	1.67	1.67
O1	O	0.5568	0.25

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

J.-S. Zhou et al. PHYSICAL REVIEW LETTERS (2011) · doi:10.1103/PhysRevLett.106.057201

Cite the original paper and MAGNDATA, not this mirror.

Original file

⬇ 0.416_LaCrO3.mcif from MAGNDATA · entry page

sha256 of this copy: 115eb55642866bd9bbe86d4afe2a195ba6520dc077d70641c2eb1795f58742e5
The mirror keeps the bytes Bilbao served, so the original should hash the same unless MAGNDATA has revised the entry since: shasum -a 256 0.416_LaCrO3.mcif.