Research/Sitter/MAGNDATA / 0.279_Mn3As.mcif

Mn₃As

MAGNDATA entry 0.279 · 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 ≤ 420 K (147 °C)Colour: where that sits relative to 25 °C. Saturation: how much margin it has.

Structure · 10 properties

Magnetic group	C m c′ m′ BNS 63.463
Parent space group	P 6₃/m m c No. 194
Spins	coplanar · net moment 0 μ_B per cell
Propagation	[0 0 0] 1k
Cell	a 5.665 · b 5.665 · c 4.531 Å · α 90° · β 90° · γ 120°
Transition	420 K (147 °C)
Measured at	200 K
Magnetic ions	Mn
Largest moment component	3 μ_B
Method	NSD with polarization analysis

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 C m c′ m′ →

Atom sites · 3 sites · CSV

site	element	x	y	z	m_a	m_b	m_c	\|m\| (μ_B)
Mn1_1	Mn	0.8388	0.6776	0.25	3	3	0	3
Mn1_2	Mn	0.3224	0.1612	0.25	0	−3	0	3
As1	As	0.3333	0.6667	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

P.J. Brown et al. J. Phys.: Condens. Matter (1990) · doi:10.1088/0953-8984/2/47/015

Cite the original paper and MAGNDATA, not this mirror.

Original file

⬇ 0.279_Mn3As.mcif from MAGNDATA · entry page

sha256 of this copy: bc9d37e973874288fd9f2db63063dc57eeb8a73e54b60b037727115cb67030f0
The mirror keeps the bytes Bilbao served, so the original should hash the same unless MAGNDATA has revised the entry since: shasum -a 256 0.279_Mn3As.mcif.