Research/Sitter/MAGNDATA / 1.413_Ce3Ni2Ge7.mcif

Ce₃Ni₂Ge₇

MAGNDATA entry 1.413 · source

antiferromagnet

No net magnetisation, and up and down sublattices are related by a shift or by inversion, so the bands stay spin-degenerate: a conventional antiferromagnet.

Spin group ¹m¹m¹m × ²1: each symmetry marked ¹ keeps every spin, ² swaps up and down.

ordered ≤ 7.2 K (−266 °C)Colour: where that sits relative to 25 °C. Saturation: how much margin it has.

Structure · 10 properties

Magnetic group	P_C m m n BNS 59.415
Parent space group	C m m m No. 65
Spins	collinear · net moment 0 μ_B per cell
Propagation	[1 0 0] 1k
Cell	a 4.2327 · b 25.5517 · c 4.2896 Å · α 90° · β 90° · γ 90°
Transition	7.2 K (−266 °C)
Measured at	1.4 K
Magnetic ions	Ce
Largest moment component	1.98 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_C m m n →

Atom sites · 7 sites · CSV

site	element	x	y	z	m_a	m_b	m_c	\|m\| (μ_B)
Ce1	Ce	0	0	0.5
Ce2	Ce	0	0.3169	0	1.98	0	0	1.98
Ni1	Ni	0	0.1285	0.5
Ge1	Ge	0.5	0	0
Ge2	Ge	0	0.0882	0
Ge3	Ge	0	0.4128	0.5
Ge4	Ge	0	0.2217	0.5

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

L. Durivault et al. J. Magn. Magn. Mat. (2001) · doi:10.1016/S0304-8853(01)00189-5

Cite the original paper and MAGNDATA, not this mirror.

Original file

⬇ 1.413_Ce3Ni2Ge7.mcif from MAGNDATA · entry page

sha256 of this copy: 2b377abe07927ba4faba0279d615e93fac8eecf1d745837f828f21a97c7a7026
The mirror keeps the bytes Bilbao served, so the original should hash the same unless MAGNDATA has revised the entry since: shasum -a 256 1.413_Ce3Ni2Ge7.mcif.