Research/Sitter/MAGNDATA / 1.361_DyGe.mcif

DyGe

MAGNDATA entry 1.361 · 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 ¹2/¹m × ²1: each symmetry marked ¹ keeps every spin, ² swaps up and down.

ordered ≤ 37 K (−236 °C)Colour: where that sits relative to 25 °C. Saturation: how much margin it has.

Structure · 10 properties

Magnetic group	C_c 2/c BNS 15.90
Parent space group	C m c m No. 63
Spins	collinear · net moment 0 μ_B per cell
Propagation	[0 0 1/2] 1k
Cell	a 4.254 · b 10.617 · c 7.794 Å · α 90° · β 90° · γ 90°
Transition	37 K (−236 °C)
Measured at	9 K
Magnetic ions	Dy
Largest moment component	9 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_c 2/c →

Atom sites · 2 sites · CSV

site	element	x	y	z	m_a	m_b	m_c	\|m\| (μ_B)
Dy1	Dy	0	0.1369	0.125	0	0	9	9
Ge1	Ge	0	0.4235	0.125

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

K. Buschow et al. Journal of the Less-Common Metals (1988) · doi:10.1016/0022-5088(88)90003-3

Cite the original paper and MAGNDATA, not this mirror.

Original file

⬇ 1.361_DyGe.mcif from MAGNDATA · entry page

sha256 of this copy: d3db9c1ce89023dfaf4f4aba262ef303b35348e4161e18b12d867703f5617472
The mirror keeps the bytes Bilbao served, so the original should hash the same unless MAGNDATA has revised the entry since: shasum -a 256 1.361_DyGe.mcif.