Research/Sitter/MAGNDATA / 1.700_HoInCu4.mcif

Ho₁In₁Cu₄

MAGNDATA entry 1.700 · 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 ¹4/¹m¹m¹m × ²1: each symmetry marked ¹ keeps every spin, ² swaps up and down.

ordered ≤ 0.8 K (−272 °C)Colour: where that sits relative to 25 °C. Saturation: how much margin it has.

Structure · 11 properties

Magnetic group	I_c 2₁c2₁c2₁ BNS 24.56
Point group	2221′
Parent space group	F 4 3 m No. 216
Spins	collinear · net moment 0 μ_B per cell
Propagation	[0 1/2 1] 1k
Cell	a 7.1781 · b 14.3562 · c 7.1781 Å · α 90° · β 90° · γ 90°
Transition	0.76 K (−272 °C)
Measured at	0.065 K
Magnetic ions	Ho
Largest moment component	4.57 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 I_c 2₁c2₁c2₁ →

Atom sites · 5 sites · CSV

site	element	x	y	z	m_a	m_b	m_c	\|m\| (μ_B)
Cu1_1	Cu	0.6246	0.3123	0.6246
Cu1_2	Cu	0.6246	0.5623	0.1246
Ho1_1	Ho	0	0	0	0	0	4.57	4.57
Ho1_2	Ho	0	0.25	0.5
In1	In	0.25	0.125	0.25

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

O. Stockert et al. PHYSICAL REVIEW RESEARCH (2020) · doi:10.1103/PhysRevResearch.2.013183

Cite the original paper and MAGNDATA, not this mirror.

Original file

⬇ 1.700_HoInCu4.mcif from MAGNDATA · entry page

sha256 of this copy: 44d24b1270d2e4b72c9af90f9d0fae2e53c8a0d30c301c525ed4eb9aaa81b01d
The mirror keeps the bytes Bilbao served, so the original should hash the same unless MAGNDATA has revised the entry since: shasum -a 256 1.700_HoInCu4.mcif.

Ho1In1Cu4

Symmetry

Source

Original file

Ho₁In₁Cu₄