Research/Sitter/MAGNDATA / 0.356_Mn2.85Ga1.15.mcif

Mn_2.85Ga_1.15

MAGNDATA entry 0.356 · source

s-wave ferrimagnet

Opposite moments of different size leave a net magnetisation.

Spin group ¹4/¹m¹m¹m: each symmetry marked ¹ keeps every spin, ² swaps up and down.

Structure · 9 properties

Magnetic group	I 4/m m′ m′ BNS 139.537
Parent space group	I 4/m m m No. 139
Spins	collinear · net moment 0.8 μ_B per cell
Propagation	[0 0 0] 1k
Cell	a 3.901 · b 3.901 · c 7.12 Å · α 90° · β 90° · γ 90°
Measured at	300 K
Magnetic ions	Mn
Largest moment component	2.8 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 · 4 sites · CSV

site	element	y	z	m_a	m_b	m_c	\|m\| (μ_B)
Ga1	Ga	0	0
Ga2	Ga	0	0.5
Mn1	Mn	0	0.5	0	0	2.8	2.8
Mn2	Mn	0.5	0.25	0	0	−1.6	1.6

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

E. Kren et al. Solid State Communications (1970) · doi:10.1016/0038-1098(70)90484-9

Cite the original paper and MAGNDATA, not this mirror.

Original file

⬇ 0.356_Mn2.85Ga1.15.mcif from MAGNDATA · entry page

sha256 of this copy: ad44bd732b6d3185a3fc1b21fc66242e548e649b27de6e11d682f0f43ed7be49
The mirror keeps the bytes Bilbao served, so the original should hash the same unless MAGNDATA has revised the entry since: shasum -a 256 0.356_Mn2.85Ga1.15.mcif.