Research/Sitter/MAGNDATA / 1.730_Cu2MnSiS4.mcif

Cu₂Mn₁Si₁S₄

MAGNDATA entry 1.730 · source

p-wave magnet

Coplanar spins, no net moment, and a translation that reverses every spin: spin splitting that is odd in momentum (p-wave).

ordered ≤ 8 K (−265 °C)Colour: where that sits relative to 25 °C. Saturation: how much margin it has.

Structure · 11 properties

Magnetic group	P_a c BNS 7.27
Point group	m1′
Parent space group	P m n 2₁ No. 31
Spins	coplanar · net moment 0 μ_B per cell
Propagation	[1/2 0 1/2] 1k
Cell	a 15.0524 · b 6.4237 · c 12.3634 Å · α 90° · β 90° · γ 90°
Transition	8 K (−265 °C)
Measured at	2 K
Magnetic ions	Mn
Largest moment component	3.18 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 P_a c →

Atom sites · 8 sites · CSV

site	element	x	y	z	m_a	m_b	m_c	\|m\| (μ_B)
Cu1_1	Cu	0.3765	0.6781	0.089
Cu1_2	Cu	0.8734	0.3219	0.339
Mn1	Mn	0	0.842	0.333	2.25	1	−3.18	4.0218
Si1	Si	0	0.1768	0.0935
S1	S	0	0.86	0.0325
S2	S	0	0.187	0.259
S3_1	S	0.3656	0.668	0.276
S3_2	S	0.8843	0.332	0.526

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

Z. T. Messegee et al. Inorganic Chemistry (2023) · doi:10.1021/acs.inorgchem.2c03754

Cite the original paper and MAGNDATA, not this mirror.

Original file

⬇ 1.730_Cu2MnSiS4.mcif from MAGNDATA · entry page

sha256 of this copy: a6aefb3b1743e887b14329889b0032fbc9644f83fef8f55eabf6cd7564410aff
The mirror keeps the bytes Bilbao served, so the original should hash the same unless MAGNDATA has revised the entry since: shasum -a 256 1.730_Cu2MnSiS4.mcif.

Cu2Mn1Si1S4

Symmetry

Source

Original file

Cu₂Mn₁Si₁S₄