Research/Sitter/MAGNDATA / 1.9_Li2VOSiO4.mcif

Li₂VOSiO₄

MAGNDATA entry 1.9 · source

antiferromagnet

No net magnetisation, and up and down sublattices are related by a shift or by inversion, so the bands stay spin-degenerate: a conventional antiferromagnet.

Spin group ¹m¹m¹m × ²1: each symmetry marked ¹ keeps every spin, ² swaps up and down.

ordered ≤ 2.8 K (−270 °C)Colour: where that sits relative to 25 °C. Saturation: how much margin it has.

Structure · 11 properties

Magnetic group	P_A b c m BNS 57.389
Point group	mmm1′
Parent space group	P 4/n m m No. 129
Spins	collinear · net moment 0 μ_B per cell
Propagation	[1/2 1/2 0] 1k
Cell	a 12.71 · b 12.71 · c 4.449 Å · α 90° · β 90° · γ 90°
Transition	2.8 K (−270 °C)
Measured at	1.44 K
Magnetic ions	V
Largest moment component	0.445 μ_B
Method	NPD and RXS

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_A b c m →

Atom sites · 6 sites · CSV

site	element	x	y	z	m_a	m_b	m_c	\|m\| (μ_B)
Li1_1	Li	0	0	0.5
Li1_2	Li	0.25	0	0.5
V1	V	0.125	0.125	0.0857	0.445	0.445	0	0.6293
Si1	Si	0.375	0.125	0
O1	O	0.125	0.4783	0.218
O2	O	0.125	0.125	0.7209

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

A. Bombardi et al. PHYSICAL REVIEW LETTERS (2004) · doi:10.1103/PhysRevLett.93.027202

Cite the original paper and MAGNDATA, not this mirror.

Original file

⬇ 1.9_Li2VOSiO4.mcif from MAGNDATA · entry page

sha256 of this copy: 1deca8a2bed0a39a5f84dcec3e0da978b29771bd5fb140e9bb1ab9b759db309c
The mirror keeps the bytes Bilbao served, so the original should hash the same unless MAGNDATA has revised the entry since: shasum -a 256 1.9_Li2VOSiO4.mcif.