Research/Sitter/MAGNDATA / 1.54_GdMn2O5.mcif

GdMn₂O₅

MAGNDATA entry 1.54 · 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 ≤ 26 K (−247 °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 14.7062 · b 8.5371 · c 5.6807 Å · α 90° · β 90° · γ 90°
Transition	26 K (−247 °C)
Measured at	5 K
Magnetic ions	Gd, Mn
Largest moment component	4.87 μ_B
Method	XRMS

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)
Gd1_1	Gd	0.0698	0.1716	0	4.87	1.63	0	5.1355
Gd1_2	Gd	0.9303	0.8284	0	−4.51	−1.5	0	4.7529
Mn1	Mn	0	0.5	0.2551	−2.85	0.95	0	3.0042
Mn2_1	Mn	0.2059	0.3518	0.5	3.8	−1.27	0	4.0066
Mn2_2	Mn	0.7941	0.6482	0.5	3.8	−1.27	0	4.0066
O1	O	0	0	0.2697
O2_1	O	0.0763	0.4486	0
O2_2	O	0.9237	0.5514	0
O3_1	O	0.0727	0.4356	0.5
O3_2	O	0.9273	0.5644	0.5
O4_1	O	0.1997	0.2076	0.245
O4_2	O	0.8003	0.7924	0.245

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

N. Lee et al. PHYSICAL REVIEW LETTERS (2013) · doi:10.1103/physrevlett.110.137203

Cite the original paper and MAGNDATA, not this mirror.

Original file

⬇ 1.54_GdMn2O5.mcif from MAGNDATA · entry page

sha256 of this copy: f642ab423db3100a2a5106d08f2e238fd504e60e5f498bf8b5fc897ae7ae6bf7
The mirror keeps the bytes Bilbao served, so the original should hash the same unless MAGNDATA has revised the entry since: shasum -a 256 1.54_GdMn2O5.mcif.