Research/Sitter/MAGNDATA / 0.616_HoB2.mcif

HoB₂

MAGNDATA entry 0.616 · source

s-wave ferromagnet

All moments add up to a net magnetisation: an ordinary magnet. Spin splitting is the same in every direction (s-wave).

Spin group ¹6/¹m¹m¹m: each symmetry marked ¹ keeps every spin, ² swaps up and down.

ordered ≤ 15 K (−258 °C)Colour: where that sits relative to 25 °C. Saturation: how much margin it has.

Structure · 10 properties

Magnetic group	C 2′/m′ BNS 12.62
Parent space group	P 6/m m m No. 191
Spins	collinear · net moment 6.745 μ_B per cell
Propagation	[0 0 0] 1k
Cell	a 3.2849 · b 3.2849 · c 3.8183 Å · α 90° · β 90° · γ 120°
Transition	15 K (−258 °C)
Measured at	2 K
Magnetic ions	Ho
Largest moment component	5.31 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 2′/m′ →

Atom sites · 2 sites · CSV

site	element	x	y	z	m_a	m_b	m_c	\|m\| (μ_B)
Ho1	Ho	0	0	0	0	4.16	5.31	6.7455
B1	B	0.3333	0.6667	0.5

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

N. Terada et al. PHYSICAL REVIEW B (2020) · doi:10.1103/PhysRevB.102.094435

Cite the original paper and MAGNDATA, not this mirror.

Original file

⬇ 0.616_HoB2.mcif from MAGNDATA · entry page

sha256 of this copy: 8bd47d699917c2f47fa03437919156d7bda3936906a862f24dbedd17c78dae2a
The mirror keeps the bytes Bilbao served, so the original should hash the same unless MAGNDATA has revised the entry since: shasum -a 256 0.616_HoB2.mcif.