Research/Sitter/MAGNDATA / 1.0.50_CoGeO3.mcif

CoGeO₃

MAGNDATA entry 1.0.50 · source

noncollinear ferrimagnet

Opposite moments of different size leave a net magnetisation.

ordered ≤ 33.5 K (−240 °C)Colour: where that sits relative to 25 °C. Saturation: how much margin it has.

Structure · 11 properties

Magnetic group	C 2′/c′ BNS 15.89
Point group	2′/m′
Parent space group	C 2/c No. 15
Spins	coplanar · net moment 25.948 μ_B per cell
Propagation	[0 2/3 0] 1k
Cell	a 9.692 · b 27.054 · c 5.181 Å · α 90° · β 101.17° · γ 90°
Transition	33.5 K (−240 °C)
Measured at	3 K
Magnetic ions	Co
Largest moment component	4.12 μ_B
Method	NSD

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 2′/c′ →

Atom sites · 18 sites · CSV

site	element	x	y	z	m_a	m_b	m_c	\|m\| (μ_B)
Co1_1	Co	0	0.3026	0.25	0.98	0	−2.49	2.8471
Co1_2	Co	0.5	0.4692	0.25	−0.98	0	2.49	2.8471
Co1_3	Co	0.5	0.8641	0.75	0.98	0	−2.49	2.8471
Co2_1	Co	0	0.0898	0.25	2.09	0	4.12	4.2434
Co2_2	Co	0.5	0.2565	0.25	−2.09	0	−4.12	4.2434
Co2_3	Co	0.5	0.0769	0.75	−2.09	0	−4.12	4.2434
Ge1_1	Ge	0.3	0.0313	0.2153
Ge1_2	Ge	0.8	0.198	0.2153
Ge1_3	Ge	0.2	0.1354	0.7847
O1_1	O	0.1187	0.0309	0.1351
O1_2	O	0.6187	0.1975	0.1351
O1_3	O	0.3813	0.1358	0.8649
O2_1	O	0.3831	0.0807	0.3888
O2_2	O	0.8831	0.2474	0.3888
O2_3	O	0.1169	0.086	0.6112
O3_1	O	0.3588	0.0222	0.9099
O3_2	O	0.8588	0.1888	0.9099
O3_3	O	0.1412	0.1445	0.0901

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

H. Guo et al. PHYSICAL REVIEW RESEARCH (2021) · doi:10.1103/PhysRevResearch.3.L032037

Cite the original paper and MAGNDATA, not this mirror.

Original file

⬇ 1.0.50_CoGeO3.mcif from MAGNDATA · entry page

sha256 of this copy: 0acbbf17ef18fbbdf7d2f15373634de2443a4305c8d91a9e0d8caae434991de0
The mirror keeps the bytes Bilbao served, so the original should hash the same unless MAGNDATA has revised the entry since: shasum -a 256 1.0.50_CoGeO3.mcif.