Research/Sitter/MAGNDATA / 1.523_VPO4.mcif

VPO₄

MAGNDATA entry 1.523 · 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 ≤ 10.3 K (−263 °C)Colour: where that sits relative to 25 °C. Saturation: how much margin it has.

Structure · 10 properties

Magnetic group	P_c n m a BNS 62.452
Parent space group	C m c m No. 63
Spins	collinear · net moment 0 μ_B per cell
Propagation	[1/2 0 0] 1k
Cell	a 10.46 · b 7.767 · c 6.243 Å · α 90° · β 90° · γ 90°
Transition	10.3 K (−263 °C)
Measured at	2 K
Magnetic ions	V
Largest moment component	0.8 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_c n m a →

Atom sites · 5 sites · CSV

site	element	x	y	z	m_a	m_b	m_c	\|m\| (μ_B)
V1	V	0	0	0	0	0.8	0	0.8
P1	P	0	0.344	0.25
O1_1	O	0.1215	0.469	0.25
O1_2	O	0.8785	0.531	0.75
O2	O	0	0.2515	0.039

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. Glaum et al. JOURNAL OF SOLID STATE CHEMISTRY (1996) · doi:10.1006/jssc.1996.0303

Cite the original paper and MAGNDATA, not this mirror.

Original file

⬇ 1.523_VPO4.mcif from MAGNDATA · entry page

sha256 of this copy: 84a2634c02fff09c698faab1f6aaaf18970c34e2b604d9bb53e68b43dbeee91d
The mirror keeps the bytes Bilbao served, so the original should hash the same unless MAGNDATA has revised the entry since: shasum -a 256 1.523_VPO4.mcif.