Research/Sitter/MAGNDATA / 0.276_Mn3AlN.mcif

Mn₃AlN

MAGNDATA entry 0.276 · 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 ¹4/¹m¹m¹m: each symmetry marked ¹ keeps every spin, ² swaps up and down.

ordered ≤ 272 K (−1 °C)Colour: where that sits relative to 25 °C. Saturation: how much margin it has.

Structure · 10 properties

Magnetic group	C m m′ m′ BNS 65.486
Parent space group	P m 3 m No. 221
Spins	collinear · net moment 3.705 μ_B per cell
Propagation	[0 0 0] 1k
Cell	a 3.869 · b 3.869 · c 3.869 Å · α 90° · β 90° · γ 90°
Transition	272 K (−1 °C)
Measured at	77 K
Magnetic ions	Mn
Largest moment component	1.34 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 C m m′ m′ →

Atom sites · 4 sites · CSV

site	element	x	y	z	m_a	m_b	m_c	\|m\| (μ_B)
Al1	Al	0	0	0
Mn1_1	Mn	0	0.5	0.5	0.64	0.64	0	0.9051
Mn1_2	Mn	0.5	0.5	0	1.34	1.34	0	1.895
N1	N	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

W.J. Takei et al. Phys. Rev. (1962) · doi:10.1103/PhysRev.125.1893

Cite the original paper and MAGNDATA, not this mirror.

Original file

⬇ 0.276_Mn3AlN.mcif from MAGNDATA · entry page

sha256 of this copy: 2072f384ac02a52ce9e90a2f49da5e45e4a6a01c1d1cf9e09d685e79bb749921
The mirror keeps the bytes Bilbao served, so the original should hash the same unless MAGNDATA has revised the entry since: shasum -a 256 0.276_Mn3AlN.mcif.