Research/Sitter/MAGNDATA / 0.449_Tb2Pt.mcif

Tb₂Pt

MAGNDATA entry 0.449 · source

noncollinear ferrimagnet

Opposite moments of different size leave a net magnetisation.

ordered ≤ 98 K (−175 °C)Colour: where that sits relative to 25 °C. Saturation: how much margin it has.

Structure · 10 properties

Magnetic group	P 2₁′/m′ BNS 11.54
Parent space group	P n m a No. 62
Spins	coplanar · net moment 28.037 μ_B per cell
Propagation	[0 0 0] 1k
Cell	a 7.147 · b 4.772 · c 8.763 Å · α 90° · β 90° · γ 90°
Transition	98 K (−175 °C)
Measured at	4.2 K
Magnetic ions	Tb
Largest moment component	5.2 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 P 2₁′/m′ →

Atom sites · 6 sites · CSV

site	element	x	y	z	m_a	m_b	m_c	\|m\| (μ_B)
Pt1_1	Pt	0.274	0.25	0.104
Pt1_2	Pt	0.226	0.75	0.604
Tb1_1	Tb	0.868	0.25	0.073	5.2	0	2	5.5714
Tb1_2	Tb	0.632	0.75	0.573	5.2	0	−2	5.5714
Tb2_1	Tb	0.968	0.25	0.773	3	0	4.7	5.5758
Tb2_2	Tb	0.532	0.75	0.273	−3	0	4.7	5.5758

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

A. Castets et al. phys. stat. sol. (a) (1982) · doi:10.1002/pssa.2210730222

Cite the original paper and MAGNDATA, not this mirror.

Original file

⬇ 0.449_Tb2Pt.mcif from MAGNDATA · entry page

sha256 of this copy: 31e6e201472ed4ade2ca70d01337c5747ece288066d2e22ed43fb59c8fe81e87
The mirror keeps the bytes Bilbao served, so the original should hash the same unless MAGNDATA has revised the entry since: shasum -a 256 0.449_Tb2Pt.mcif.