Research/Sitter/MAGNDATA / 1.484_Li2MnGeO4.mcif

Li₂MnGeO₄

MAGNDATA entry 1.484 · 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 ≤ 8 K (−265 °C)Colour: where that sits relative to 25 °C. Saturation: how much margin it has.

Structure · 10 properties

Magnetic group	C_a c BNS 9.41
Parent space group	P m n 2₁ No. 31
Spins	coplanar · net moment 0 μ_B per cell
Propagation	[1/2 1/2 1/2] 1k
Cell	a 12.9346 · b 10.0942 · c 10.934 Å · α 90° · β 90° · γ 90°
Transition	8 K (−265 °C)
Measured at	1.7 K
Magnetic ions	Mn
Largest moment component	3.86 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 C_a c →

Atom sites · 8 sites · CSV

site	element	x	y	z	m_a	m_b	m_c	\|m\| (μ_B)
Li1_1	Li	0.125	0.1655	0.0001
Li1_2	Li	0.125	0.8345	0.2501
Mn1	Mn	0	0.0872	0.25	1.75	2.45	3.86	4.8954
Ge1	Ge	0	0.4109	0.0048
O1_1	O	0.1114	0.3365	0.4466
O1_2	O	0.1386	0.6635	0.6966
O2	O	0	0.0664	0.4541
O3	O	0	0.4089	0.1792

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

A.N. Korshunov et al. PHYSICAL REVIEW B (2020) · doi:10.1103/PhysRevB.102.214420

Cite the original paper and MAGNDATA, not this mirror.

Original file

⬇ 1.484_Li2MnGeO4.mcif from MAGNDATA · entry page

sha256 of this copy: 55c2efa99dcf1bca30fa98ddb35dbbbbca4aee6d3b0906366843d3a0cc96f2cf
The mirror keeps the bytes Bilbao served, so the original should hash the same unless MAGNDATA has revised the entry since: shasum -a 256 1.484_Li2MnGeO4.mcif.