Research/Sitter/MAGNDATA / 0.357_CaFe5O7.mcif

CaFe₅O₇

MAGNDATA entry 0.357 · source

noncoplanar ferrimagnet

Opposite moments of different size leave a net magnetisation.

ordered ≤ 360 K (87 °C)Colour: where that sits relative to 25 °C. Saturation: how much margin it has.

Structure · 10 properties

Magnetic group	P 2₁/m BNS 11.50
Parent space group	P 2₁/m No. 11
Spins	noncoplanar · net moment 6.6 μ_B per cell
Propagation	[0 0 0] 1k
Cell	a 3.0454 · b 17.9659 · c 5.2482 Å · α 90° · β 107.01° · γ 90°
Transition	360 K (87 °C)
Measured at	300 K
Magnetic ions	Fe
Largest moment component	3.3 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 2₁/m →

Atom sites · 8 sites · CSV

site	element	x	y	z	m_a	m_b	m_c	\|m\| (μ_B)
Ca1	Ca	0.803	0.25	0.5744
Fe1	Fe	0.272	0.4251	0.5469	−2.9	0.4	−0.3	2.855
Fe2	Fe	0.459	0.6538	0.9266	3.3	0.8	0.5	3.2886
Fe3	Fe	0	0.5	0	1.8	0.9	0	2.0125
O1	O	0.462	0.25	0.911
O2	O	0.9	0.1069	0.825
O3	O	0.631	0.0316	0.28
O4	O	0.176	0.1674	0.348

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

C. Delacotte et al. Journal of Solid State Chemistry (2017) · doi:10.1016/j.jssc.2016.12.021

Cite the original paper and MAGNDATA, not this mirror.

Original file

⬇ 0.357_CaFe5O7.mcif from MAGNDATA · entry page

sha256 of this copy: 81ae036177af4584e97c56f320a3e4950bbf6ef34e8ecfa04da8e7e059f62ade
The mirror keeps the bytes Bilbao served, so the original should hash the same unless MAGNDATA has revised the entry since: shasum -a 256 0.357_CaFe5O7.mcif.