Research/Sitter/MAGNDATA / 1.354_EuNiO3.mcif

EuNiO₃

MAGNDATA entry 1.354 · 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 ≤ 220 K (−53 °C)Colour: where that sits relative to 25 °C. Saturation: how much margin it has.

Structure · 10 properties

Magnetic group	C_a m c 2₁ BNS 36.178
Parent space group	P n m a No. 62
Spins	collinear · net moment 0 μ_B per cell
Propagation	[1/2 0 1/2] 1k
Cell	a 10.5622 · b 5.4641 · c 15.022 Å · α 90° · β 90° · γ 90°
Transition	220 K (−53 °C)
Measured at	1.5 K
Magnetic ions	Eu, Ni
Largest moment component	1.18 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_a m c 2₁ →

Atom sites · 7 sites · CSV

site	element	x	y	z	m_a	m_b	m_c	\|m\| (μ_B)
Eu1_1	Eu	0.2432	0.4416	0.375
Eu1_2	Eu	0.4932	0.0584	0.125
Ni1	Ni	0.25	0	0	1.18	0	0	1.18
O1_1	O	0.293	0.0204	0.375
O1_2	O	0.5431	0.4796	0.125
O2_1	O	0.3511	0.2961	0.0217
O2_2	O	0.6011	0.2039	0.9783

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

J. Rodriguez-Carvajal et al. PHYSICAL REVIEW B (1998) · doi:10.1103/PhysRevB.57.456

Cite the original paper and MAGNDATA, not this mirror.

Original file

⬇ 1.354_EuNiO3.mcif from MAGNDATA · entry page

sha256 of this copy: 6d69189fd28c094526581579c09d62244d252845fb4e03db806ab59d274820eb
The mirror keeps the bytes Bilbao served, so the original should hash the same unless MAGNDATA has revised the entry since: shasum -a 256 1.354_EuNiO3.mcif.