Research/Sitter/MAGNDATA / 0.496_LaMn2Si2.mcif

LaMn₂Si₂

MAGNDATA entry 0.496 · source

noncollinear ferrimagnet

Opposite moments of different size leave a net magnetisation.

Structure · 9 properties

Magnetic group	I m′ m 2′ BNS 44.231
Parent space group	I 4/m m m No. 139
Spins	coplanar · net moment 7.24 μ_B per cell
Propagation	[0 0 0] 1k
Cell	a 4.09848 · b 4.09848 · c 10.56325 Å · α 90° · β 90° · γ 90°
Measured at	4.2 K
Magnetic ions	Mn
Largest moment component	2.06 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 I m′ m 2′ →

Atom sites · 3 sites · CSV

site	element	y	z	m_a	m_b	m_c	\|m\| (μ_B)
La1	La	0	0
Mn1	Mn	0.5	0.25	0	−2.06	1.81	2.7422
Si1	Si	0	0.3801

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

E. Gerasimov et al. Journal of Alloys and Compounds (2018) · doi:10.1016/j.jallcom.2017.10.050

Cite the original paper and MAGNDATA, not this mirror.

Original file

⬇ 0.496_LaMn2Si2.mcif from MAGNDATA · entry page

sha256 of this copy: 05636df2e68d5886e07fac2e01cfc1a71eed2e92bb86f57b268c24d0d7d2d61e
The mirror keeps the bytes Bilbao served, so the original should hash the same unless MAGNDATA has revised the entry since: shasum -a 256 0.496_LaMn2Si2.mcif.