Research/Sitter/MAGNDATA / 1.430_Mn5(VO4)2(OH)4.mcif

Mn₅(VO₄)₂(OH)₄

MAGNDATA entry 1.430 · 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 ¹2/¹m × ²1: each symmetry marked ¹ keeps every spin, ² swaps up and down.

ordered ≤ 45 K (−228 °C)Colour: where that sits relative to 25 °C. Saturation: how much margin it has.

Structure · 10 properties

Magnetic group	P_b 2/c BNS 13.71
Parent space group	C 2/m No. 12
Spins	collinear · net moment 0 μ_B per cell
Propagation	[0 1/2 0] 1k
Cell	a 9.6568 · b 19.1254 · c 5.4139 Å · α 90° · β 98.53° · γ 90°
Transition	45 K (−228 °C)
Measured at	5 K
Magnetic ions	Mn
Largest moment component	2.48 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_b 2/c →

Atom sites · 14 sites · CSV

site	element	x	y	z	m_a	m_b	m_c	\|m\| (μ_B)
Mn1_1	Mn	0	0.0766	0.5	0	1.98	0	1.98
Mn1_2	Mn	0	0.4234	0.5	0	1.98	0	1.98
Mn2_1	Mn	0	0.3406	0	0	−2.43	0	2.43
Mn2_2	Mn	0	0.1594	0	0	−2.43	0	2.43
Mn3	Mn	0	0.25	0.5	0	2.48	0	2.48
V1	V	0.1892	0	0.0551
O1	O	0.3721	0	0.1165
O2_1	O	0.3669	0.322	0.1181
O2_2	O	0.6331	0.678	0.8819
O3	O	0.1256	0	0.3358
O4_1	O	0.6066	0.0875	0.3645
O4_2	O	0.3934	0.9125	0.6355
H1_1	H	0.7	0.0855	0.377
H1_2	H	0.3	0.9145	0.623

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

V.O. Garlea et al. AIP Advances (2018) · doi:10.1063/1.5043124

Cite the original paper and MAGNDATA, not this mirror.

Original file

⬇ 1.430_Mn5(VO4)2(OH)4.mcif from MAGNDATA · entry page

sha256 of this copy: 454bf9140c498247286f945da455efc7c61b8fb5a1f6028bacdc2cb19769bc9c
The mirror keeps the bytes Bilbao served, so the original should hash the same unless MAGNDATA has revised the entry since: shasum -a 256 1.430_Mn5(VO4)2(OH)4.mcif.