Research/Sitter/MAGNDATA / 0.739_YBaMn2O5.mcif

YBaMn₂O₅

MAGNDATA entry 0.739 · 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 ≤ 165 K (−108 °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 2 μ_B per cell
Propagation	[0 0 0] 1k
Cell	a 5.5359 · b 5.5359 · c 7.6151 Å · α 90° · β 90° · γ 90°
Transition	165 K (−108 °C)
Measured at	1.5 K
Magnetic ions	Mn
Largest moment component	3.9 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 4/n m′ m′ →

Atom sites · 6 sites · CSV

site	element	x	y	z	m_a	m_b	m_c	\|m\| (μ_B)
Y1	Y	0.75	0.25	0.5
Ba1	Ba	0.75	0.25	0
Mn1	Mn	0.25	0.25	0.2794	0	0	2.9	2.9
Mn2	Mn	0.25	0.25	0.7486	0	0	−3.9	3.9
O1	O	0.4911	0.4911	0.3164
O2	O	0.25	0.25	0.0061

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

F. Millange et al. Materials Research Bulletin (1999) · doi:10.1016/S0025-5408(98)00214-1

Cite the original paper and MAGNDATA, not this mirror.

Original file

⬇ 0.739_YBaMn2O5.mcif from MAGNDATA · entry page

sha256 of this copy: 3a4143d7974adc58f6cb5c5c7bba6fbe7b2849c69e79f99b0cd40f9fbba1b1e2
The mirror keeps the bytes Bilbao served, so the original should hash the same unless MAGNDATA has revised the entry since: shasum -a 256 0.739_YBaMn2O5.mcif.