Research/Sitter/MAGNDATA / 1.444_Er2Pt.mcif

Er₂Pt

MAGNDATA entry 1.444 · source

p-wave magnet

Coplanar spins, no net moment, and a translation that reverses every spin: spin splitting that is odd in momentum (p-wave).

ordered ≤ 9 K (−264 °C)Colour: where that sits relative to 25 °C. Saturation: how much margin it has.

Structure · 10 properties

Magnetic group	P_a n a 2₁ BNS 33.149
Parent space group	P n m a No. 62
Spins	coplanar · net moment 0 μ_B per cell
Propagation	[1/2 0 0] 1k
Cell	a 14.074 · b 4.705 · c 8.668 Å · α 90° · β 90° · γ 90°
Transition	9 K (−264 °C)
Measured at	4.2 K
Magnetic ions	Er
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_a n a 2₁ →

Atom sites · 6 sites · CSV

site	element	x	y	z	m_a	m_b	m_c	\|m\| (μ_B)
Er1_1	Er	0.43	0.25	0.08	4.8	0	−2.9	5.608
Er1_2	Er	0.57	0.75	0.92	−4.8	0	2.9	5.608
Er2_1	Er	0.494	0.25	0.671	3	0	5.2	6.0033
Er2_2	Er	0.506	0.75	0.329	−3	0	5.2	6.0033
Pt1_1	Pt	0.124	0.25	0.094
Pt1_2	Pt	0.876	0.75	0.906

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

D. Gignoux et al. phys. stat. sol. (a) (1984) · doi:10.1002/pssa.2210860132

Cite the original paper and MAGNDATA, not this mirror.

Original file

⬇ 1.444_Er2Pt.mcif from MAGNDATA · entry page

sha256 of this copy: f091e27c62d97f8f28d40d463d84b0095821f3b55f5bc066d60275648148e346
The mirror keeps the bytes Bilbao served, so the original should hash the same unless MAGNDATA has revised the entry since: shasum -a 256 1.444_Er2Pt.mcif.