Research/Sitter/MAGNDATA / 0.464_BaMn2P2.mcif

BaMn₂P₂

MAGNDATA entry 0.464 · 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 ¹4/¹m¹m¹m × ²1: each symmetry marked ¹ keeps every spin, ² swaps up and down.

Structure · 9 properties

Magnetic group	I 4′/m′ m′ m BNS 139.536
Parent space group	I 4/m m m No. 139
Spins	collinear · net moment 0 μ_B per cell
Propagation	[0 0 0] 1k
Cell	a 4.037 · b 4.037 · c 13.052 Å · α 90° · β 90° · γ 90°
Measured at	293 K
Magnetic ions	Mn
Largest moment component	4.2 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 I 4′/m′ m′ m →

Atom sites · 3 sites · CSV

site	element	y	z	m_a	m_b	m_c	\|m\| (μ_B)
Ba1	Ba	0	0
Mn1	Mn	0.5	0.25	0	0	4.2	4.2
P1	P	0	0.3548

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

S.L. Brock et al. Journal of Solid State Chemistry (1994) · doi:10.1006/jssc.1994.1375

Cite the original paper and MAGNDATA, not this mirror.

Original file

⬇ 0.464_BaMn2P2.mcif from MAGNDATA · entry page

sha256 of this copy: 6581d08b352467e4ba2856274f4b951443907590268ca534ab8549cf18702b67
The mirror keeps the bytes Bilbao served, so the original should hash the same unless MAGNDATA has revised the entry since: shasum -a 256 0.464_BaMn2P2.mcif.