Research/Sitter/MAGNDATA / 0.437_Ho3NiGe2.mcif

Ho₃NiGe₂

MAGNDATA entry 0.437 · source

noncollinear ferrimagnet

Opposite moments of different size leave a net magnetisation.

ordered ≤ 43 K (−230 °C)Colour: where that sits relative to 25 °C. Saturation: how much margin it has.

Structure · 10 properties

Magnetic group	P n m′ a′ BNS 62.447
Parent space group	P n m a No. 62
Spins	coplanar · net moment 83.2 μ_B per cell
Propagation	[0 0 0] 1k
Cell	a 11.248 · b 4.1409 · c 11.111 Å · α 90° · β 90° · γ 90°
Transition	43 K (−230 °C)
Measured at	1.5 K
Magnetic ions	Ho, Ni
Largest moment component	8 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 n m′ a′ →

Atom sites · 6 sites · CSV

site	element	x	y	z	m_a	m_b	m_c	\|m\| (μ_B)
Ho1	Ho	0.3775	0.25	0.4411	8	0	−4.3	9.0824
Ho2	Ho	0.0532	0.25	0.3746	4.8	0	7.7	9.0736
Ho3	Ho	0.2117	0.25	0.7007	8	0	−4.3	9.0824
Ni1	Ni	0.1243	0.25	0.1279
Ge1	Ge	0.4813	0.25	0.6805
Ge2	Ge	0.3093	0.25	0.0077

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. V. Morozkin et al. Journal of Magnetism and Magnetic Materials (2014) · doi:10.1016/j.jmmm.2014.02.038

Cite the original paper and MAGNDATA, not this mirror.

Original file

⬇ 0.437_Ho3NiGe2.mcif from MAGNDATA · entry page

sha256 of this copy: 63c0cab00d8e0720a794c040d8340aa71acbdd3a166e472e3abb0663b73ba992
The mirror keeps the bytes Bilbao served, so the original should hash the same unless MAGNDATA has revised the entry since: shasum -a 256 0.437_Ho3NiGe2.mcif.