Research/Sitter/MAGNDATA / 0.1069_Er2CuMn5O12.mcif

Er₂CuMn₅O₁₂

MAGNDATA entry 0.1069 · source

s-wave ferrimagnet

Opposite moments of different size leave a net magnetisation.

Spin group ¹2/¹m: each symmetry marked ¹ keeps every spin, ² swaps up and down.

ordered ≤ 172 K (−101 °C)Colour: where that sits relative to 25 °C. Saturation: how much margin it has.

Structure · 11 properties

Magnetic group	P m m′ n′ BNS 59.410
Point group	m′m′m
Parent space group	P m m n No. 59
Spins	collinear · net moment 10.06 μ_B per cell
Propagation	[0 0 0] 1k
Cell	a 7.31474 · b 7.264 · c 7.77047 Å · α 90° · β 90° · γ 90°
Transition	172 K (−101 °C)
Measured at	140 K
Magnetic ions	Mn
Largest moment component	2.28 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 m m′ n′ →

Atom sites · 13 sites · CSV

site	element	x	y	z	m_a	m_b	m_c	\|m\| (μ_B)
Er1	Er	0.25	0.75	0.2215
Er2	Er	0.25	0.75	0.7166
Cu1	Cu	0.25	0.25	0.2692
Mn1	Mn	0.25	0.25	0.2692
Mn2	Mn	0.25	0.25	0.7588	−2.15	0	0	2.15
Cu2	Cu	0.25	0.25	0.7588
Mn3	Mn	0	0	0	2.28	−0.19	0	2.2879
Mn4	Mn	0	0	0.5	1.31	0	0	1.31
O1	O	0.4376	0.0612	0.2669
O2	O	0.25	0.5587	−0.0413
O3	O	0.0335	0.25	−0.0782
O4	O	0.25	0.0343	0.5812
O5	O	−0.0647	0.25	0.5414

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

John M. Attah-Baah et al. Acta Cryst. B (2024) · doi:10.1107/S2052520624008965

Cite the original paper and MAGNDATA, not this mirror.

Original file

⬇ 0.1069_Er2CuMn5O12.mcif from MAGNDATA · entry page

sha256 of this copy: 8797a41c89c7df5a509c58284a10330ced98d6ee676dd0e9fb7b7a4e034528a0
The mirror keeps the bytes Bilbao served, so the original should hash the same unless MAGNDATA has revised the entry since: shasum -a 256 0.1069_Er2CuMn5O12.mcif.