Research/Sitter/MAGNDATA / 1.684_Ba0.67La0.33FeO3.mcif

Ba_0.67La_0.33Fe₁O₃

MAGNDATA entry 1.684 · 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 ¹m¹3̄¹m × ²1: each symmetry marked ¹ keeps every spin, ² swaps up and down.

ordered ≤ 170 K (−103 °C)Colour: where that sits relative to 25 °C. Saturation: how much margin it has.

Structure · 11 properties

Magnetic group	I_b m m a BNS 74.562
Point group	mmm1′
Parent space group	P m 3 m No. 221
Spins	collinear · net moment 0 μ_B per cell
Propagation	[1/2 1/2 1/2] 1k
Cell	a 7.8724 · b 7.8724 · c 7.8724 Å · α 90° · β 90° · γ 90°
Transition	170 K (−103 °C)
Measured at	150 K
Magnetic ions	Fe
Largest moment component	0.6165 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_b m m a →

Atom sites · 5 sites · CSV

site	element	x	y	z	m_a	m_b	m_c	\|m\| (μ_B)
Fe1	Fe	0	0	0	0	0.6165	0.6165	0.8719
Ba1	Ba	0.25	0.25	0.25
La1	La	0.25	0.25	0.25
O1_1	O	0.25	0	0
O1_2	O	0	0.25	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

M. Onose et al. PHYSICAL REVIEW MATERIALS (2022) · doi:10.1103/PhysRevMaterials.6.094401

Cite the original paper and MAGNDATA, not this mirror.

Original file

⬇ 1.684_Ba0.67La0.33FeO3.mcif from MAGNDATA · entry page

sha256 of this copy: 785b933b081a99baaacf9c812fa31b6b19c9c6ca31e46b6f12d7bf9d42a9b61d
The mirror keeps the bytes Bilbao served, so the original should hash the same unless MAGNDATA has revised the entry since: shasum -a 256 1.684_Ba0.67La0.33FeO3.mcif.

Ba0.67La0.33Fe1O3

Symmetry

Source

Original file

Ba_0.67La_0.33Fe₁O₃