Research/Sitter/MAGNDATA / 1.307_Mn5Si3.mcif

Mn₅Si₃

MAGNDATA entry 1.307 · source

noncoplanar magnet

Spins pointing in three dimensions, not confined to a plane.

ordered ≤ 66 K (−207 °C)Colour: where that sits relative to 25 °C. Saturation: how much margin it has.

Structure · 11 properties

Magnetic group	P_S 1 BNS 1.3
Point group	11′
Parent space group	P 6₃/m c m No. 193
Spins	noncoplanar · 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	66 K (−207 °C)
Measured at	4.2 K
Magnetic ions	Mn
Largest moment component	2.16 μ_B
Method	Neutron polarimetry

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_S 1 →

Atom sites · 16 sites · CSV

site	element	x	y	z	m_a	m_b	m_c	\|m\| (μ_B)
Mn1_1	Mn	0	0.3333	0	−0.28	1.04	−0.53	1.2004
Mn1_2	Mn	0	0.6667	0.5	0.28	−1.04	0.53	1.2004
Mn1_3	Mn	0	0.6667	0	0.28	−1.04	0.53	1.2004
Mn1_4	Mn	0	0.3333	0.5	−0.28	1.04	−0.53	1.2004
Mn2_1	Mn	0.236	0	0.25
Mn2_2	Mn	0.764	0	0.75
Mn2_3	Mn	0.882	0.118	0.25	0.11	−2.16	−0.79	2.3026
Mn2_4	Mn	0.882	0.882	0.25	−0.11	2.16	0.79	2.3026
Mn2_5	Mn	0.118	0.882	0.75	−0.65	−0.13	−1.73	1.8526
Mn2_6	Mn	0.118	0.118	0.75	0.65	0.13	1.73	1.8526
Si1_1	Si	0.5991	0	0.25
Si1_2	Si	0.4009	0	0.75
Si1_3	Si	0.7005	0.2995	0.25
Si1_4	Si	0.7005	0.7005	0.25
Si1_5	Si	0.2995	0.7005	0.75
Si1_6	Si	0.2995	0.2995	0.75

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 (1992) · doi:10.1088/0953-8984/4/49/029

Cite the original paper and MAGNDATA, not this mirror.

Original file

⬇ 1.307_Mn5Si3.mcif from MAGNDATA · entry page

sha256 of this copy: 78366715ff5b5bd771dd75b83e0c43a68cfc10d1c699137ad0576c78d446737d
The mirror keeps the bytes Bilbao served, so the original should hash the same unless MAGNDATA has revised the entry since: shasum -a 256 1.307_Mn5Si3.mcif.