Research/Sitter/MAGNDATA / 1.76_DyMn2O5.mcif

DyMn₂O₅

MAGNDATA entry 1.76 · source

p-wave magnet

Coplanar spins, no net moment, and a translation that reverses every spin: spin splitting that is odd in momentum (p-wave).

ordered ≤ 40 K (−233 °C)Colour: where that sits relative to 25 °C. Saturation: how much margin it has.

Structure · 11 properties

Magnetic group	P_a c a 2₁ BNS 29.104
Point group	mm21′
Parent space group	P b a m No. 55
Spins	coplanar · net moment 0 μ_B per cell
Propagation	[1/2 0 0] 1k
Cell	a 14.588 · b 8.5551 · c 5.6875 Å · α 90° · β 90° · γ 90°
Transition	40 K (−233 °C)
Measured at	2 K
Magnetic ions	Dy, Mn
Largest moment component	5.68 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_a c a 2₁ →

Atom sites · 12 sites · CSV

site	element	x	y	z	m_a	m_b	m_c	\|m\| (μ_B)
Dy1_1	Dy	0.0694	0.1717	0	0	−5.68	0	5.68
Dy1_2	Dy	0.4306	0.8283	0	0	−5.68	0	5.68
Mn1	Mn	0	0.5	0.2548	0.62	−1.11	0	1.2714
Mn2_1	Mn	0.2059	0.35	0.5	−0.75	1.53	0	1.7039
Mn2_2	Mn	0.294	0.65	0.5	0.75	−1.53	0	1.7039
O1	O	0	0	0.2741
O2_1	O	0.0824	0.4452	0
O2_2	O	0.9176	0.5548	0
O3_1	O	0.0769	0.4354	0.5
O3_2	O	0.9232	0.5646	0.5
O4_1	O	0.1976	0.2082	0.2414
O4_2	O	0.8024	0.7918	0.2414

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

G.R. Blake et al. PHYSICAL REVIEW B (2005) · doi:10.1103/physrevb.71.214402

Cite the original paper and MAGNDATA, not this mirror.

Original file

⬇ 1.76_DyMn2O5.mcif from MAGNDATA · entry page

sha256 of this copy: f5354a18c39252bba5d719a1be5006d2bf0f528bc36e5d77de0e1b4642f1fa78
The mirror keeps the bytes Bilbao served, so the original should hash the same unless MAGNDATA has revised the entry since: shasum -a 256 1.76_DyMn2O5.mcif.