Research/Sitter/MAGNDATA / 0.158_Yb2Ti2O7.mcif

Yb₂Ti₂O₇

MAGNDATA entry 0.158 · source

noncoplanar ferrimagnet

Opposite moments of different size leave a net magnetisation.

ordered ≤ 0.3 K (−273 °C)Colour: where that sits relative to 25 °C. Saturation: how much margin it has.

Structure · 11 properties

Magnetic group	I 4₁/a m′ d′ BNS 141.557
Point group	4/mm′m′
Parent space group	F d 3m No. 227
Spins	noncoplanar · net moment 13.92 μ_B per cell
Propagation	[0 0 0] 1k
Cell	a 10.0325 · b 10.0325 · c 10.0325 Å · α 90° · β 90° · γ 90°
Transition	0.26 K (−273 °C)
Measured at	0.052 K
Magnetic ions	Yb
Largest moment component	0.87 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 4₁/a m′ d′ →

Atom sites · 5 sites · CSV

site	element	x	y	z	m_a	m_b	m_c	\|m\| (μ_B)
Yb1	Yb	0.5	0.5	0.5	0.15	0.15	0.87	0.8955
Ti1	Ti	0	0	0
O1_1	O	0.3309	0.125	0.125
O1_2	O	0.125	0.125	0.3309
O2	O	0.375	0.375	0.375

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

J. Gaudet et al. PHYSICAL REVIEW B (2016) · doi:10.1103/PhysRevB.93.064406

Cite the original paper and MAGNDATA, not this mirror.

Original file

⬇ 0.158_Yb2Ti2O7.mcif from MAGNDATA · entry page

sha256 of this copy: f1cd5dc39b0ff11c6b6f9e30137152f12f83ea231cfd2fa29a2faf690f20d108
The mirror keeps the bytes Bilbao served, so the original should hash the same unless MAGNDATA has revised the entry since: shasum -a 256 0.158_Yb2Ti2O7.mcif.