Research/Sitter/MAGNDATA / 0.386_Fe3BO5.mcif

Fe₃BO₅

MAGNDATA entry 0.386 · 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 ≤ 112 K (−161 °C)Colour: where that sits relative to 25 °C. Saturation: how much margin it has.

Structure · 10 properties

Magnetic group	P n m′ a BNS 62.444
Parent space group	P n m a No. 62
Spins	collinear · net moment 0 μ_B per cell
Propagation	[0 0 0] 1k
Cell	a 9.465 · b 12.31 · c 6.154 Å · α 90° · β 90° · γ 90°
Transition	112 K (−161 °C)
Measured at	82 K
Magnetic ions	Fe
Largest moment component	2.4 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 n m′ a →

Atom sites · 15 sites · CSV

site	element	x	y	z	m_a	m_b	m_c	\|m\| (μ_B)
Fe1	Fe	0	0	0
Fe2	Fe	0.5117	−0.0027	0.25	0	2.3	0	2.3
Fe3	Fe	0.5002	0.226	0.0026
Fe4	Fe	0.7492	0.3907	0.25	0	2.3	0	2.3
Fe5	Fe	0.2599	0.6151	0.25	0	2.4	0	2.4
B1	B	0.7652	0.1371	0.75
B2	B	0.2292	0.86	0.75
O1	O	0.3451	0.4563	0.75
O2	O	0.6585	0.5417	0.75
O3	O	0.888	0.4218	0.9904
O4	O	0.1255	0.3613	0.75
O5	O	0.8809	0.6372	0.75
O6	O	0.6133	0.3591	0.9975
O7	O	0.3435	0.2624	0.75
O8	O	0.662	0.735	0.75

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

P. Bordet et al. PHYSICAL REVIEW B (2009) · doi:10.1103/PhysRevB.79.144408

Cite the original paper and MAGNDATA, not this mirror.

Original file

⬇ 0.386_Fe3BO5.mcif from MAGNDATA · entry page

sha256 of this copy: 737de42fa108405568be0d5c82d920b4ff3ea400d4d71b99ae5ed80f64b330cb
The mirror keeps the bytes Bilbao served, so the original should hash the same unless MAGNDATA has revised the entry since: shasum -a 256 0.386_Fe3BO5.mcif.