Research/Sitter/MAGNDATA / 1.736_Mn(N2H5)2(SO4)2.mcif

Mn₁N₄H₁₀S₂O₈

MAGNDATA entry 1.736 · 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 ¹1̄ × ²1: each symmetry marked ¹ keeps every spin, ² swaps up and down.

ordered ≤ 2.4 K (−271 °C)Colour: where that sits relative to 25 °C. Saturation: how much margin it has.

Structure · 11 properties

Magnetic group	P_S 1 BNS 2.7
Point group	11′
Parent space group	P 1 No. 2
Spins	collinear · net moment 0 μ_B per cell
Propagation	[1/2 0 1/2] 1k
Cell	a 10.622 · b 5.807 · c 14.648 Å · α 91.84° · β 105.65° · γ 98.82°
Transition	2.4 K (−271 °C)
Measured at	1.5 K
Magnetic ions	Mn
Largest moment component	3.2 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 P_S 1 →

Atom sites · 13 sites · CSV

site	element	x	y	z	m_a	m_b	m_c	\|m\| (μ_B)
Mn1	Mn	0.25	0	0.25	0	3.2	0	3.2
S1	S	0.074	0.245	0.3565
O1	O	0.068	0.778	0.203
O2	O	0.171	0.271	0.3
O3	O	0.0765	0.042	0.417
O4	O	0.399	0.534	0.078
N1	N	0.2155	0.177	0.12
H1	H	0.19	0.068	0.065
H2	H	0.3075	0.283	0.115
N2	N	0.121	0.328	0.109
H3	H	0.1215	0.406	0.0475
H4	H	0.041	0.232	0.1115
H5	H	0.161	0.466	0.1695

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

S. Calder et al. PHYSICAL REVIEW MATERIALS (2022) · doi:10.1103/PhysRevMaterials.6.124407

Cite the original paper and MAGNDATA, not this mirror.

Original file

⬇ 1.736_Mn(N2H5)2(SO4)2.mcif from MAGNDATA · entry page

sha256 of this copy: c6b18b4ee9e6f05ca1add89c1e8e9c7dbb8aabad3dca441b39ea9bcff5605d6d
The mirror keeps the bytes Bilbao served, so the original should hash the same unless MAGNDATA has revised the entry since: shasum -a 256 1.736_Mn(N2H5)2(SO4)2.mcif.

Mn1N4H10S2O8

Symmetry

Source

Original file

Mn₁N₄H₁₀S₂O₈