Research/Sitter/MAGNDATA / 0.711_MnTa4S8.mcif

MnTa₄S₈

MAGNDATA entry 0.711 · 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 ¹6/¹m¹m¹m: each symmetry marked ¹ keeps every spin, ² swaps up and down.

Structure · 9 properties

Magnetic group	C m c′ m′ BNS 63.463
Parent space group	P 6₃/m m c No. 194
Spins	collinear · net moment 8.4 μ_B per cell
Propagation	[0 0 0] 1k
Cell	a 6.64 · b 6.64 · c 12.51 Å · α 90° · β 90° · γ 120°
Measured at	4.2 K
Magnetic ions	Mn
Largest moment component	4.2 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 c′ m′ →

Atom sites · 7 sites · CSV

site	element	x	y	z	m_a	m_b	m_c	\|m\| (μ_B)
Ta1	Ta	0	0	0.25
Ta2_1	Ta	0.4921	0.9842	0.25
Ta2_2	Ta	0.0158	0.5079	0.25
Mn1	Mn	0	0	0	0	4.2	0	4.2
S1	S	0.3333	0.6667	0.1221
S2_1	S	0.8319	0.6638	0.3753
S2_2	S	0.3362	0.1681	0.3753

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

B. Van Laar et al. JOURNAL OF SOLID STATE CHEMISTRY (1971) · doi:10.1016/0022-4596(71)90019-3

Cite the original paper and MAGNDATA, not this mirror.

Original file

⬇ 0.711_MnTa4S8.mcif from MAGNDATA · entry page

sha256 of this copy: 48d7074494a048b6df91d69a9a7d586b801e15dd8dcd0ca95e2454f88a3fd982
The mirror keeps the bytes Bilbao served, so the original should hash the same unless MAGNDATA has revised the entry since: shasum -a 256 0.711_MnTa4S8.mcif.