Research/Sitter/MAGNDATA / 2.114_Er2CuMn5O12.mcif

Er₂CuMn₅O₁₂

MAGNDATA entry 2.114 · source

noncoplanar ferrimagnet

Opposite moments of different size leave a net magnetisation.

ordered ≤ 17 K (−256 °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	noncoplanar · net moment 3.88 μ_B per cell
Propagation	[0 0 0] · [0 0 1/2] 2k
Cell	a 7.31074 · b 7.26462 · c 15.53113 Å · α 90° · β 90° · γ 90°
Transition	17 K (−256 °C)
Measured at	9 K
Magnetic ions	Er, Mn
Largest moment component	5.02 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 · 25 sites · CSV

site	element	x	y	z	m_a	m_b	m_c	\|m\| (μ_B)
Er1_1	Er	0.25	0.75	0.6108
Er1_2	Er	0.25	0.75	0.1108
Er2_1	Er	0.25	0.75	0.3583	−5.02	0	0	5.02
Er2_2	Er	0.25	0.75	0.8583	−5.02	0	0	5.02
Cu1_1	Cu	0.25	0.25	0.6346
Mn1_1	Mn	0.25	0.25	0.6346
Cu1_2	Cu	0.25	0.25	0.1346
Mn1_2	Mn	0.25	0.25	0.1346
Mn2_1	Mn	0.25	0.25	0.8794	−3.23	0	0	3.23
Cu2_1	Cu	0.25	0.25	0.8794
Mn2_2	Mn	0.25	0.25	0.3794	−3.23	0	0	3.23
Cu2_2	Cu	0.25	0.25	0.3794
Mn3_1	Mn	0	0	0	1.91	2.28	−0.93	3.1163
Mn3_2	Mn	0	0	0.5	1.91	−2.28	0.93	3.1163
Mn4	Mn	0.5	0.5	0.25	2.7	0	0	2.7
O1	O	0.4376	0.0612	0.1335
O2	O	0.4376	0.0612	0.6335
O3	O	0.25	0.5587	−0.0207
O4	O	0.25	0.5587	0.4793
O5	O	0.0335	0.25	−0.0391
O6	O	0.0335	0.25	0.4609
O7	O	0.25	0.0343	0.7906
O8	O	0.25	0.0343	0.2906
O9	O	−0.0647	0.25	0.7707
O10	O	−0.0647	0.25	0.2707

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

⬇ 2.114_Er2CuMn5O12.mcif from MAGNDATA · entry page

sha256 of this copy: ccd006d35bb498ae6c30945a1c3dc5dc390e9f67cfc7b73e1ed0750c1fe0570e
The mirror keeps the bytes Bilbao served, so the original should hash the same unless MAGNDATA has revised the entry since: shasum -a 256 2.114_Er2CuMn5O12.mcif.