Research/Sitter/MAGNDATA / 1.195_Er2Ni2In.mcif

Er₂Ni₂In

MAGNDATA entry 1.195 · 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 ≤ 6 K (−267 °C)Colour: where that sits relative to 25 °C. Saturation: how much margin it has.

Structure · 11 properties

Magnetic group	C_a m c m BNS 63.467
Point group	mmm1′
Parent space group	C m m m No. 65
Spins	collinear · net moment 0 μ_B per cell
Propagation	[1/2 0 1/2] 1k
Cell	a 7.706 · b 13.97 · c 7.212 Å · α 90° · β 90° · γ 90°
Transition	6 K (−267 °C)
Measured at	1.6 K
Magnetic ions	Er, Ni
Largest moment component	7.71 μ_B
Method	No magnetic ordering is detected at Ni sites

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 m →

Atom sites · 3 sites · CSV

site	element	y	z	m_a	m_b	m_c	\|m\| (μ_B)
Er1	Er	0.364	0.25	0	7.71	0	7.71
Ni1	Ni	0.198	0
In1	In	0	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

S. Baran et al. Journal of Alloys and Compounds (2017) · doi:10.1016/j.jallcom.2016.12.072

Cite the original paper and MAGNDATA, not this mirror.

Original file

⬇ 1.195_Er2Ni2In.mcif from MAGNDATA · entry page

sha256 of this copy: feeaea948e4fbb65426188ca77df02d4b789fe1d2b83d5067034c355ba835417
The mirror keeps the bytes Bilbao served, so the original should hash the same unless MAGNDATA has revised the entry since: shasum -a 256 1.195_Er2Ni2In.mcif.