Research/Sitter/MAGNDATA / 1.116_AgMnVO4.mcif

AgMnVO₄

MAGNDATA entry 1.116 · source

noncollinear antiferromagnet

All moments add up to a net magnetisation: an ordinary magnet. Spin splitting is the same in every direction (s-wave).

ordered ≤ 12.1 K (−261 °C)Colour: where that sits relative to 25 °C. Saturation: how much margin it has.

Structure · 11 properties

Magnetic group	P_a 2₁/m BNS 11.55
Point group	2/m1′
Parent space group	P n m a No. 62
Spins	coplanar · net moment 0 μ_B per cell
Propagation	[1/2 0 1/2] 1k
Cell	a 19.1556 · b 6.8518 · c 10.7468 Å · α 90° · β 90° · γ 90°
Transition	12.1 K (−261 °C)
Measured at	5 K
Magnetic ions	Mn
Largest moment component	2.93 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_a 2₁/m →

Atom sites · 12 sites · CSV

site	element	x	y	z	m_a	m_b	m_c	\|m\| (μ_B)
Ag1_1	Ag	0.175	0.25	0.0011
Ag1_2	Ag	0.075	0.75	0.2511
Mn1_1	Mn	0	0	0	2.73	0	−2.93	4.0047
Mn1_2	Mn	0.25	0	0.25	−2.73	0	−2.93	4.0047
V1_1	V	0.3401	0.25	0.012
V1_2	V	0.9099	0.75	0.262
O1_1	O	0.4275	0.25	0.022
O1_2	O	0.8225	0.75	0.272
O2_1	O	0.317	0.25	0.3595
O2_2	O	0.933	0.75	0.6095
O3_1	O	0.306	0.454	0.0835
O3_2	O	0.944	0.546	0.3335

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

H.B. Yahia et al. Journal of Solid State Chemistry (2015) · doi:10.1016/j.jssc.2014.09.017

Cite the original paper and MAGNDATA, not this mirror.

Original file

⬇ 1.116_AgMnVO4.mcif from MAGNDATA · entry page

sha256 of this copy: b9be43e2768bb66f7bd15cbb1fd07b6d4bab512735b43efda7e150c3cea579f0
The mirror keeps the bytes Bilbao served, so the original should hash the same unless MAGNDATA has revised the entry since: shasum -a 256 1.116_AgMnVO4.mcif.