Research/Sitter/MAGNDATA / 0.797_SmBaMn2O5.mcif

SmBaMn₂O₅

MAGNDATA entry 0.797 · source

s-wave ferrimagnet

Opposite moments of different size leave a net magnetisation.

Spin group ¹4/¹m¹m¹m: each symmetry marked ¹ keeps every spin, ² swaps up and down.

ordered ≤ 134 K (−139 °C)Colour: where that sits relative to 25 °C. Saturation: how much margin it has.

Structure · 11 properties

Magnetic group	P 4/n m′ m′ BNS 129.417
Point group	4/mm′m′
Parent space group	P 4/n m m No. 129
Spins	collinear · net moment 1.82 μ_B per cell
Propagation	[0 0 0] 1k
Cell	a 5.5449 · b 5.5449 · c 7.6165 Å · α 90° · β 90° · γ 90°
Transition	134 K (−139 °C)
Measured at	12 K
Magnetic ions	Mn
Largest moment component	4.06 μ_B
Method	NSD

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 4/n m′ m′ →

Atom sites · 6 sites · CSV

site	element	x	y	z	m_a	m_b	m_c	\|m\| (μ_B)
Ba1	Ba	0.75	0.25	0
Sm1	Sm	0.75	0.25	0.5
Mn1	Mn	0.25	0.25	0.2731	0	0	3.15	3.15
Mn2	Mn	0.25	0.25	0.7482	0	0	−4.06	4.06
O1	O	0.25	0.25	0.0062
O2	O	0.4905	0.4905	0.31

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

J. Blasco et al. Materials Research Bulletin (2022) · doi:10.1016/j.materresbull.2022.111780

Cite the original paper and MAGNDATA, not this mirror.

Original file

⬇ 0.797_SmBaMn2O5.mcif from MAGNDATA · entry page

sha256 of this copy: c62f8235aa7e36f01e58a9661370271f6ab294636ccf3f8d24c7db900dbe1156
The mirror keeps the bytes Bilbao served, so the original should hash the same unless MAGNDATA has revised the entry since: shasum -a 256 0.797_SmBaMn2O5.mcif.