Research/Sitter/MAGNDATA / 1.229_BaMoP2O8.mcif

BaMoP₂O₈

MAGNDATA entry 1.229 · 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 ¹1̄ × ²1: each symmetry marked ¹ keeps every spin, ² swaps up and down.

ordered ≤ 21 K (−252 °C)Colour: where that sits relative to 25 °C. Saturation: how much margin it has.

Structure · 10 properties

Magnetic group	P_S 1 BNS 2.7
Parent space group	C 2/m No. 12
Spins	collinear · net moment 0 μ_B per cell
Propagation	[1/2 -1/2 1/2] 1k
Cell	a 16.422 · b 10.5514 · c 15.632 Å · α 90° · β 94.78° · γ 90°
Transition	21 K (−252 °C)
Measured at	1.5 K
Magnetic ions	Mo
Largest moment component	0.84 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_S 1 →

Atom sites · 7 sites · CSV

site	element	x	y	z	m_a	m_b	m_c	\|m\| (μ_B)
Ba1	Ba	0	0	0
Mo1	Mo	0	0	0.25	0.82	0	0.84	1.1239
P1	P	0.3147	0	0.1449
O1_1	O	0.0121	0.1305	0.1562
O1_2	O	0.9879	0.1305	0.8438
O2	O	0.3826	0	0.2196
O3	O	0.3431	0	0.0561

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

J. Hembacher et al. Phys. Rev. B (2018) · doi:10.1103/PhysRevB.98.094406

Cite the original paper and MAGNDATA, not this mirror.

Original file

⬇ 1.229_BaMoP2O8.mcif from MAGNDATA · entry page

sha256 of this copy: 9845a6150aca4ac14ba639e6fa46aafd880b90216f14c9469b7220e2c8de1e0a
The mirror keeps the bytes Bilbao served, so the original should hash the same unless MAGNDATA has revised the entry since: shasum -a 256 1.229_BaMoP2O8.mcif.