Research/Sitter/MAGNDATA / 1.585_PrFeAsO.mcif

PrFeAsO

MAGNDATA entry 1.585 · 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 ¹m¹m¹m × ²1: each symmetry marked ¹ keeps every spin, ² swaps up and down.

ordered ≤ 85 K (−188 °C)Colour: where that sits relative to 25 °C. Saturation: how much margin it has.

Structure · 10 properties

Magnetic group	P_B c c a BNS 54.350
Parent space group	C m m e No. 67
Spins	collinear · net moment 0 μ_B per cell
Propagation	[1 0 0] 1k
Cell	a 5.6374 · b 5.6063 · c 8.5966 Å · α 90° · β 90° · γ 90°
Transition	85 K (−188 °C)
Measured at	30 K
Magnetic ions	Fe, Pr
Largest moment component	0.35 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_B c c a →

Atom sites · 4 sites · CSV

site	element	x	y	z	m_a	m_b	m_c	\|m\| (μ_B)
Pr1	Pr	0	0.25	0.1385
Fe1	Fe	0.25	0	0.5	0.35	0	0	0.35
As1	As	0	0.25	0.6565
O1	O	0.25	0	0

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. A. J. Kimber et al. Physical Review B (2008) · doi:10.1103/PhysRevB.78.140503

Cite the original paper and MAGNDATA, not this mirror.

Original file

⬇ 1.585_PrFeAsO.mcif from MAGNDATA · entry page

sha256 of this copy: f927156b52e0b0deab8f6c847b9bad1ac9fb9a89778cd8502cd37b62942fa9f5
The mirror keeps the bytes Bilbao served, so the original should hash the same unless MAGNDATA has revised the entry since: shasum -a 256 1.585_PrFeAsO.mcif.