Research/Sitter/MAGNDATA / 0.554_Co2MnSi.mcif

Co₂MnSi

MAGNDATA entry 0.554 · 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 ¹m¹3̄¹m: each symmetry marked ¹ keeps every spin, ² swaps up and down.

ordered ≤ 1014 K (741 °C)Colour: where that sits relative to 25 °C. Saturation: how much margin it has.

Structure · 10 properties

Magnetic group	I 4/m m′ m′ BNS 139.537
Parent space group	F m 3 m No. 225
Spins	collinear · net moment 17.4 μ_B per cell
Propagation	[0 0 0] 1k
Cell	a 5.6406 · b 5.6406 · c 5.6406 Å · α 90° · β 90° · γ 90°
Transition	1014 K (741 °C)
Measured at	298 K
Magnetic ions	Co, Mn
Largest moment component	2.43 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 4/m m′ m′ →

Atom sites · 5 sites · CSV

site	element	x	y	z	m_a	m_b	m_c	\|m\| (μ_B)
Co1	Co	0.25	0.25	0.25	0	0	0.96	0.96
Mn1	Mn	0.25	0.25	0.25
Mn2	Mn	0	0	0	0	0	2.43	2.43
Co3	Co	0	0	0
Si1	Si	0.5	0.5	0.5

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

S.J. Ahmed et al. Journal of Alloys and Compounds (2019) · doi:10.1016/j.jallcom.2018.12.018

Cite the original paper and MAGNDATA, not this mirror.

Original file

⬇ 0.554_Co2MnSi.mcif from MAGNDATA · entry page

sha256 of this copy: 8998b8c775582e0d73f62be7a3401ec6775de87eaf39f33b5af14c8950c6362d
The mirror keeps the bytes Bilbao served, so the original should hash the same unless MAGNDATA has revised the entry since: shasum -a 256 0.554_Co2MnSi.mcif.