Research/Sitter/MAGNDATA / 1.865_Ba2YbFeO5.mcif

Ba₂Yb₁Fe₁O₅

MAGNDATA entry 1.865 · source

noncoplanar magnet

Spins pointing in three dimensions, not confined to a plane.

ordered ≤ 9.8 K (−263 °C)Colour: where that sits relative to 25 °C. Saturation: how much margin it has.

Structure · 11 properties

Magnetic group	P_a 2₁/c BNS 14.80
Point group	2/m1′
Parent space group	P 2₁/c No. 14
Spins	noncoplanar · net moment 0 μ_B per cell
Propagation	[1/2 0 1/2] 1k
Cell	a 24.9253 · b 6.01762 · c 15.5748 Å · α 90° · β 92.198° · γ 90°
Transition	9.8 K (−263 °C)
Measured at	1.8 K
Magnetic ions	Fe, Yb
Largest moment component	4.01 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/c →

Atom sites · 9 sites · CSV

site	element	x	y	z	m_a	m_b	m_c	\|m\| (μ_B)
Ba1	Ba	0.0745	0.2461	0.0074
Ba2	Ba	0.0572	0.2498	0.2511
Yb	Yb	0.4351	0.2534	0.117	0.4	0.06	2.96	2.9723
Fe	Fe	0.4567	0.2438	0.3779	0.92	0.22	4.01	4.0856
O1	O	0.436	0.268	0.2632
O2	O	0.1606	0.2279	0.2204
O3	O	0.1156	0.0522	0.3687
O4	O	0.2597	0.033	0.1326
O5	O	0.2438	0.5211	0.1439

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

V. Hardy et al. Phys. Rev. B (2025) · doi:10.1103/xdgh-1vr4

Cite the original paper and MAGNDATA, not this mirror.

Original file

⬇ 1.865_Ba2YbFeO5.mcif from MAGNDATA · entry page

sha256 of this copy: 0ea62374165e5a96a4fa485806797bcbc159e01a9803f85de1ce02e405d05548
The mirror keeps the bytes Bilbao served, so the original should hash the same unless MAGNDATA has revised the entry since: shasum -a 256 1.865_Ba2YbFeO5.mcif.

Ba2Yb1Fe1O5

Symmetry

Source

Original file

Ba₂Yb₁Fe₁O₅