Research/Sitter/MAGNDATA / 0.322_Cu1.94Mn1.06BO5.mcif

Cu_1.94Mn_1.06BO₅

MAGNDATA entry 0.322 · source

noncollinear ferrimagnet

Opposite moments of different size leave a net magnetisation.

ordered ≤ 92 K (−181 °C)Colour: where that sits relative to 25 °C. Saturation: how much margin it has.

Structure · 10 properties

Magnetic group	P 2₁′/c′ BNS 14.79
Parent space group	P 2₁/c No. 14
Spins	coplanar · net moment 7.724 μ_B per cell
Propagation	[0 0 0] 1k
Cell	a 3.1385 · b 9.4002 · c 12.0204 Å · α 90° · β 92.27° · γ 90°
Transition	92 K (−181 °C)
Measured at	2 K
Magnetic ions	Cu, Mn
Largest moment component	1.93 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′/c′ →

Atom sites · 14 sites · CSV

site	element	x	y	z	m_a	m_b	m_c	\|m\| (μ_B)
Mn1	Mn	0	0	0
Cu1	Cu	0	0	0	0.09	0	−0.44	0.4526
Mn2	Mn	0.5	0	0.5
Cu2	Cu	0.5	0	0.5	0.6	0	0.97	1.1202
Mn3	Mn	0.0638	0.9877	0.279
Cu3	Cu	0.0638	0.9877	0.279	−0.23	0	0.91	0.9474
Mn4	Mn	0.576	0.7324	0.3785	−1.93	0	−1.91	2.661
Cu4	Cu	0.576	0.7324	0.3785
B1	B	0.4057	0.264	0.367
O1	O	0.0038	0.0953	0.1454
O2	O	0.1492	0.8725	0.4118
O3	O	0.4661	0.1187	0.3654
O4	O	0.6091	0.6597	0.5369
O5	O	0.6419	0.8332	0.2337

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

E. Moshkina et al. Journal of Physics: Condensed Matter (2017) · doi:10.1088/1361-648X/aa7020

Cite the original paper and MAGNDATA, not this mirror.

Original file

⬇ 0.322_Cu1.94Mn1.06BO5.mcif from MAGNDATA · entry page

sha256 of this copy: 491b3a64e4e95d981291a9fb0e120f6cedc4313c7ef9625ab14f7dc1293b3351
The mirror keeps the bytes Bilbao served, so the original should hash the same unless MAGNDATA has revised the entry since: shasum -a 256 0.322_Cu1.94Mn1.06BO5.mcif.