Research/Sitter/MAGNDATA / 1.853_Ba2YFeO5.mcif

Ba₂Y₁FeO₅

MAGNDATA entry 1.853 · 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 ≤ 5.5 K (−268 °C)Colour: where that sits relative to 25 °C. Saturation: how much margin it has.

Structure · 11 properties

Magnetic group	P_S 1 BNS 2.7
Point group	11′
Parent space group	P 2₁/n No. 14
Spins	coplanar · net moment 0 μ_B per cell
Propagation	[0 1/2 1/2] 1k
Cell	a 12.5704 · b 12.1372 · c 15.5788 Å · α 90° · β 92.291° · γ 90°
Transition	5.5 K (−268 °C)
Measured at	1.7 K
Magnetic ions	Fe
Largest moment component	3.79 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 · 18 sites · CSV

site	element	x	y	z	m_a	m_b	m_c	\|m\| (μ_B)
Ba1_1	Ba	0.1529	0.1293	0.0088
Ba1_2	Ba	0.3471	0.3792	0.2412
Ba2_1	Ba	0.1168	0.128	0.2544
Ba2_2	Ba	0.3832	0.378	0.9957
Y1_1	Y	0.87	0.1275	0.1153
Y1_2	Y	0.63	0.3775	0.1347
Fe1_1	Fe	0.9159	0.1172	0.3787	0.24	3.79	1.39	4.0407
Fe1_2	Fe	0.5841	0.3672	0.8713	1.6	−3.38	1.6	4.0422
O1_1	O	0.873	0.1308	0.2618
O1_2	O	0.627	0.3808	0.9882
O2_1	O	0.3189	0.1169	0.2161
O2_2	O	0.1811	0.3669	0.0339
O3_1	O	0.2261	0.025	0.3764
O3_2	O	0.274	0.275	0.8736
O4_1	O	0.5216	0.0233	0.1428
O4_2	O	0.9784	0.2733	0.1072
O5_1	O	0.4801	0.2703	0.1361
O5_2	O	0.0199	0.5203	0.1139

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. Caignaert et al. J. Magn. Magn. Mater. (2025) · doi:10.1016/j.jmmm.2025.173249

Cite the original paper and MAGNDATA, not this mirror.

Original file

⬇ 1.853_Ba2YFeO5.mcif from MAGNDATA · entry page

sha256 of this copy: d3754ea4761da6943be8420c956a83b9261277352c70fcd25f3fa35cd0c88a17
The mirror keeps the bytes Bilbao served, so the original should hash the same unless MAGNDATA has revised the entry since: shasum -a 256 1.853_Ba2YFeO5.mcif.

Ba2Y1FeO5

Symmetry

Source

Original file

Ba₂Y₁FeO₅