Research/Sitter/MAGNDATA / 0.901_La0.3Y0.7Mn2Ge2.mcif

La_0.3Y_0.7Mn₂Ge₂

MAGNDATA entry 0.901 · source

noncollinear ferrimagnet

Opposite moments of different size leave a net magnetisation.

ordered ≤ 350 K (77 °C)Colour: where that sits relative to 25 °C. Saturation: how much margin it has.

Structure · 11 properties

Magnetic group	I m′ m 2′ BNS 44.231
Point group	m′m2′
Parent space group	I 4/m m m No. 139
Spins	coplanar · net moment 6.08 μ_B per cell
Propagation	[0 0 0] 1k
Cell	a 4.0604 · b 4.0604 · c 10.884 Å · α 90° · β 90° · γ 90°
Transition	350 K (77 °C)
Measured at	200 K
Magnetic ions	Mn
Largest moment component	1.75 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 · 4 sites · CSV

site	element	y	z	m_a	m_b	m_c	\|m\| (μ_B)
Mn1	Mn	0.5	0.25	0	−1.75	1.52	2.318
La1	La	0	0
Y1	Y	0	0
Ge1	Ge	0	0.385

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. Venturini et al. Journal of Alloys and Compounds (1995) · doi:10.1016/0925-8388(94)01496-5

Cite the original paper and MAGNDATA, not this mirror.

Original file

⬇ 0.901_La0.3Y0.7Mn2Ge2.mcif from MAGNDATA · entry page

sha256 of this copy: bea1d3f70a4270e457109797ee5e35f05de3123ed71be79b0b00b639071efb5a
The mirror keeps the bytes Bilbao served, so the original should hash the same unless MAGNDATA has revised the entry since: shasum -a 256 0.901_La0.3Y0.7Mn2Ge2.mcif.