Research/Sitter/MAGNDATA / 1.305_Mn5Si3.mcif

Mn₅Si₃

MAGNDATA entry 1.305 · source

antiferromagnet

No net magnetisation, and up and down sublattices are related by a shift or by inversion, so the bands stay spin-degenerate: a conventional antiferromagnet.

Spin group ¹m¹m¹m × ²1: each symmetry marked ¹ keeps every spin, ² swaps up and down.

ordered ≤ 99 K (−174 °C)Colour: where that sits relative to 25 °C. Saturation: how much margin it has.

Structure · 10 properties

Magnetic group	P_C b c n BNS 60.431
Parent space group	P 6₃/m c m No. 193
Spins	collinear · net moment 0 μ_B per cell
Propagation	[0 1/2 0] 1k
Cell	a 6.91 · b 11.9685 · c 4.814 Å · α 90° · β 90° · γ 90°
Transition	99 K (−174 °C)
Measured at	70 K
Magnetic ions	Mn
Largest moment component	1.48 μ_B
Method	NSD, neutron polarimetry and 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_C b c n →

Atom sites · 5 sites · CSV

site	element	x	y	z	m_a	m_b	m_c	\|m\| (μ_B)
Mn1	Mn	0	0.3328	0
Mn2_1	Mn	0.2392	0	0.25
Mn2_2	Mn	0.8826	0.882	0.25	0	1.48	0	1.48
Si1_1	Si	0.5991	0	0.25
Si1_2	Si	0.7002	0.7	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

P.J. Brown et al. J. Phys.: Condens. Matter (1995) · doi:10.1088/0953-8984/7/39/004

Cite the original paper and MAGNDATA, not this mirror.

Original file

⬇ 1.305_Mn5Si3.mcif from MAGNDATA · entry page

sha256 of this copy: 093044fe2479ca82cf76aca1a580a0ecee80f987b4b6021616083b4efe9b6d35
The mirror keeps the bytes Bilbao served, so the original should hash the same unless MAGNDATA has revised the entry since: shasum -a 256 1.305_Mn5Si3.mcif.