Research/Sitter/MAGNDATA / 0.943_Yb2Ge2O7.mcif

Yb₂Ge₂O₇

MAGNDATA entry 0.943 · source

noncoplanar ferrimagnet

Opposite moments of different size leave a net magnetisation.

Structure · 10 properties

Magnetic group	P 4₁ 2₁′ 2′ BNS 92.114
Point group	42′2′
Parent space group	P 4₁ 2₁ 2 No. 92
Spins	noncoplanar · net moment 9.36 μ_B per cell
Propagation	[0 0 0] 1k
Cell	a 6.7 · b 6.7 · c 12.2 Å · α 90° · β 90° · γ 90°
Measured at	0.1 K
Magnetic ions	Yb
Largest moment component	1.17 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 4₁ 2₁′ 2′ →

Atom sites · 6 sites · CSV

site	element	x	y	z	m_a	m_b	m_c	\|m\| (μ_B)
O1	O	0.5331	0.5764	0.8736
Ge1	Ge	0.5996	0.6521	0.6304
O2	O	0.6645	0.9362	0.9249
O3	O	0.8167	0.6449	0.7073
Yb1	Yb	0.8756	0.3527	0.1355	0.31	0.09	−1.17	1.2137
O4	O	0.3055	0.3055	0

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

D. M. Pajerowski et al. PHYSICAL REVIEW B (2020) · doi:10.1103/PhysRevB.101.014420

Cite the original paper and MAGNDATA, not this mirror.

Original file

⬇ 0.943_Yb2Ge2O7.mcif from MAGNDATA · entry page

sha256 of this copy: 198c0419d5724c3e913c63c8cd7a3cdcf86e539ae5855bc5db82741eb29b22f4
The mirror keeps the bytes Bilbao served, so the original should hash the same unless MAGNDATA has revised the entry since: shasum -a 256 0.943_Yb2Ge2O7.mcif.