Research/Sitter/MAGNDATA / 0.494_Er(Co0.667Ga0.333)2.mcif

Er(Co_0.667Ga_0.333)₂

MAGNDATA entry 0.494 · source

s-wave ferromagnet

All moments add up to a net magnetisation: an ordinary magnet. Spin splitting is the same in every direction (s-wave).

Spin group ¹6/¹m¹m¹m: each symmetry marked ¹ keeps every spin, ² swaps up and down.

ordered ≤ 18.5 K (−255 °C)Colour: where that sits relative to 25 °C. Saturation: how much margin it has.

Structure · 10 properties

Magnetic group	P 6₃/m m′ c′ BNS 194.270
Parent space group	P 6₃/m m c No. 194
Spins	collinear · net moment 24.28 μ_B per cell
Propagation	[0 0 0] 1k
Cell	a 5.1853 · b 5.1853 · c 8.4159 Å · α 90° · β 90° · γ 120°
Transition	18.5 K (−255 °C)
Measured at	3.5 K
Magnetic ions	Er
Largest moment component	6.07 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 6₃/m m′ c′ →

Atom sites · 5 sites · CSV

site	element	x	y	z	m_a	m_b	m_c	\|m\| (μ_B)
Er1	Er	0.3333	0.6667	0.0626	0	0	6.07	6.07
Co1	Co	0	0	0
Ga1	Ga	0	0	0
Co2	Co	0.828	0.657	0.25
Ga2	Ga	0.828	0.657	0.25

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

F. Yuan et al. Journal of Solid State Chemistry (2018) · doi:10.1016/j.jssc.2017.09.019

Cite the original paper and MAGNDATA, not this mirror.

Original file

⬇ 0.494_Er(Co0.667Ga0.333)2.mcif from MAGNDATA · entry page

sha256 of this copy: a0deb02ed85b4e89a0e91b708513790148872525fa4e4787052924d20205505b
The mirror keeps the bytes Bilbao served, so the original should hash the same unless MAGNDATA has revised the entry since: shasum -a 256 0.494_Er(Co0.667Ga0.333)2.mcif.