Research/Sitter/MAGNDATA / 0.1136_YbPt5B2.mcif

Yb₁Pt₅B₂

MAGNDATA entry 0.1136 · 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 ¹2/¹m × ²1: each symmetry marked ¹ keeps every spin, ² swaps up and down.

ordered ≤ 4.7 K (−268 °C)Colour: where that sits relative to 25 °C. Saturation: how much margin it has.

Structure · 11 properties

Magnetic group	C 2/m′ BNS 12.61
Point group	2/m′
Parent space group	C 2/m No. 12
Spins	collinear · net moment 0 μ_B per cell
Propagation	[0 0 0] 1k
Cell	a 15.4982 · b 5.5288 · c 5.56 Å · α 90° · β 105.37° · γ 90°
Transition	4.7 K (−268 °C)
Measured at	1.5 K
Magnetic ions	Yb
Largest moment component	2.31 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 · 7 sites · CSV

site	element	x	y	z	m_a	m_b	m_c	\|m\| (μ_B)
Yb1	Yb	0.328	0	0.6694	−1.46	0	2.31	3.0423
Pt1	Pt	0.3335	0.2525	0.1673
Pt2	Pt	0.1377	0	0.3645
Pt3	Pt	0	0.2462	0.5
Pt4	Pt	0	0.2448	0
B1	B	0.224	0	0.15
B2	B	0.446	0	0.206

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

Leonid Salamakha et al. PHYSICAL REVIEW B (2025) · doi:10.1103/pj8b-d5h9

Cite the original paper and MAGNDATA, not this mirror.

Original file

⬇ 0.1136_YbPt5B2.mcif from MAGNDATA · entry page

sha256 of this copy: 51f253f90209d737ac552de23d7c766a3bfa9892648577711a5514a74a747e3f
The mirror keeps the bytes Bilbao served, so the original should hash the same unless MAGNDATA has revised the entry since: shasum -a 256 0.1136_YbPt5B2.mcif.

Yb1Pt5B2

Symmetry

Source

Original file

Yb₁Pt₅B₂