Research/Sitter/MAGNDATA / 0.796_Ca2NiOsO6.mcif

Ca₂NiOsO₆

MAGNDATA entry 0.796 · source

s-wave ferrimagnet

Opposite moments of different size leave a net magnetisation.

Spin group ¹2/¹m: each symmetry marked ¹ keeps every spin, ² swaps up and down.

ordered ≤ 175 K (−98 °C)Colour: where that sits relative to 25 °C. Saturation: how much margin it has.

Structure · 11 properties

Magnetic group	P 2₁′/c′ BNS 14.79
Point group	2′/m′
Parent space group	P 2₁/n No. 14
Spins	collinear · net moment 2.38 μ_B per cell
Propagation	[0 0 0] 1k
Cell	a 5.3608 · b 5.543 · c 7.6176 Å · α 90° · β 90.29° · γ 90°
Transition	175 K (−98 °C)
Measured at	10 K
Magnetic ions	Ni, Os
Largest moment component	2.6 μ_B
Method	X-ray magnetic circular dichroism. Data measured at 10K and at 5K are mentioned.

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 2₁′/c′ →

Atom sites · 6 sites · CSV

site	element	x	y	z	m_a	m_b	m_c	\|m\| (μ_B)
Ca1	Ca	0.9877	0.0567	0.2491
Ni1	Ni	0.5	0	0	2.6	0	0	2.6
Os1	Os	0.5	0	0.5	−1.41	0	0	1.41
O1	O	0.0932	0.473	0.2416
O2	O	0.7105	0.306	0.0453
O3	O	0.1908	0.2145	0.952

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

R. Morrow et al. Chem. Mater. (2021) · doi:10.1021/acs.chemmater.6b00254

Cite the original paper and MAGNDATA, not this mirror.

Original file

⬇ 0.796_Ca2NiOsO6.mcif from MAGNDATA · entry page

sha256 of this copy: 0377f3ff8ab22b026574e627d8e8c27fd1cb5e52da0204dfdd5e9b7a4ba018b9
The mirror keeps the bytes Bilbao served, so the original should hash the same unless MAGNDATA has revised the entry since: shasum -a 256 0.796_Ca2NiOsO6.mcif.