Research/Sitter/MAGNDATA / 1.0.54_Ho2Ni2Pb.mcif

Ho₂Ni₂Pb

MAGNDATA entry 1.0.54 · source

s-wave ferrimagnet

Opposite moments of different size leave a net magnetisation.

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

ordered ≤ 7 K (−266 °C)Colour: where that sits relative to 25 °C. Saturation: how much margin it has.

Structure · 11 properties

Magnetic group	C m′ m′ m BNS 65.485
Point group	m′m′m
Parent space group	C m m m No. 65
Spins	collinear · net moment 31.6 μ_B per cell
Propagation	[2/5 0 0] · [4/5 0 0] · [0 0 0] 1k
Cell	a 20.0105 · b 13.903 · c 3.6125 Å · α 90° · β 90° · γ 90°
Transition	7 K (−266 °C)
Measured at	1.5 K
Magnetic ions	Ho
Largest moment component	8.3 μ_B
Method	NPD and NSD

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 m′ m′ m →

Atom sites · 9 sites · CSV

site	element	x	y	z	m_a	m_b	m_c	\|m\| (μ_B)
Ho1_1	Ho	0	0.3652	0.5	0	0	8.1	8.1
Ho1_2	Ho	0.1	0.8652	0.5	0	0	8.3	8.3
Ho1_3	Ho	0.3	0.8652	0.5	0	0	−8.3	8.3
Ni1_1	Ni	0	0.1999	0
Ni1_2	Ni	0.1	0.6999	0
Ni1_3	Ni	0.3	0.6999	0
Pb1_1	Pb	0	0	0
Pb1_2	Pb	0.1	0.5	0
Pb1_3	Pb	0.3	0.5	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

K. Prokes et al. Eur. Phys. J. B (2005) · doi:10.1140/epjb/e2005-00039-1

Cite the original paper and MAGNDATA, not this mirror.

Original file

⬇ 1.0.54_Ho2Ni2Pb.mcif from MAGNDATA · entry page

sha256 of this copy: 0e480fcb4a058f3f881d1e723857e1e57a9b0aaf18ebffbccda99423f5e69707
The mirror keeps the bytes Bilbao served, so the original should hash the same unless MAGNDATA has revised the entry since: shasum -a 256 1.0.54_Ho2Ni2Pb.mcif.