Research/Sitter/MAGNDATA / 2.47_Y2SrCuFeO6.5.mcif

Y₂SrCuFeO_6.5

MAGNDATA entry 2.47 · 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 ≤ 255 K (−18 °C)Colour: where that sits relative to 25 °C. Saturation: how much margin it has.

Structure · 10 properties

Magnetic group	P c′ c′ n BNS 56.369
Parent space group	I b a m No. 72
Spins	coplanar · net moment 0 μ_B per cell
Propagation	[0 0 0] · [1 1 1] 2k
Cell	a 5.4081 · b 10.7111 · c 20.2412 Å · α 90° · β 90° · γ 90°
Transition	255 K (−18 °C)
Measured at	2 K
Magnetic ions	Cu, Fe
Largest moment component	1.56 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 c′ c′ n →

Atom sites · 16 sites · CSV

site	element	x	y	z	m_a	m_b	m_c	\|m\| (μ_B)
Y1_1	Y	0.2092	0.3619	0.1841
Y1_2	Y	0.7908	0.6381	0.8159
Sr1	Sr	0.2067	0.3657	0
Cu1_1	Cu	0.7168	0.3833	0.0981
Cu1_2	Cu	0.2832	0.6167	0.9019
Fe2_1	Fe	0.7168	0.3833	0.0981	−1.56	1.36	0	2.0696
Fe2_2	Fe	0.2832	0.6167	0.9019	1.56	1.36	0	2.0696
O1	O	0.196	0.1089	0
O2_1	O	0	0.5	0.1063
O2_2	O	0	0.5	0.8937
O3	O	0.5	0	0.25
O4	O	0	0.2225	0.25
O5_1	O	0.4565	0.2528	0.1079
O5_2	O	0.5435	0.7472	0.8921
O6_1	O	0	0	0.3558
O6_2	O	0	0	0.6442

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

R.K. Li et al. PHYSICAL REVIEW B (2000) · doi:10.1103/PhysRevB.62.14149

Cite the original paper and MAGNDATA, not this mirror.

Original file

⬇ 2.47_Y2SrCuFeO6.5.mcif from MAGNDATA · entry page

sha256 of this copy: 8f87bd5d75b676b658e449cf95ec591daf37654e6f8b0af0e5218f8033880b70
The mirror keeps the bytes Bilbao served, so the original should hash the same unless MAGNDATA has revised the entry since: shasum -a 256 2.47_Y2SrCuFeO6.5.mcif.