Research/Sitter/MAGNDATA / 0.817_Mn(Nb0.5Ta0.5)2O6.mcif

MnNb_0.5Ta_0.5O₆

MAGNDATA entry 0.817 · source

noncollinear antiferromagnet

All moments add up to a net magnetisation: an ordinary magnet. Spin splitting is the same in every direction (s-wave).

ordered < 10 K (−263 °C)Colour: where that sits relative to 25 °C. Saturation: how much margin it has.

Structure · 11 properties

Magnetic group	P b′ c n BNS 60.419
Point group	m′mm
Parent space group	P b c n No. 60
Spins	coplanar · net moment 0 μ_B per cell
Propagation	[0 0 0] 1k
Cell	a 14.418 · b 5.76 · c 5.099 Å · α 90° · β 90° · γ 90°
Transition	<10 K (−263 °C)
Measured at	2.2 K
Magnetic ions	Mn
Largest moment component	3.75 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 b′ c n →

Atom sites · 6 sites · CSV

site	element	x	y	z	m_a	m_b	m_c	\|m\| (μ_B)
Mn1	Mn	0	0.1769	0.25	3.75	0	2.66	4.5976
Nb1	Nb	0.1627	0.3233	0.7643
Ta1	Ta	0.1627	0.3233	0.7643
O1	O	0.0993	0.4019	0.4422
O2	O	0.0828	0.1159	0.9022
O3	O	0.2562	0.1266	0.5913

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. Klein et al. Acta Cryst. A (1976) · doi:10.1107/S0567739476001253

Cite the original paper and MAGNDATA, not this mirror.

Original file

⬇ 0.817_Mn(Nb0.5Ta0.5)2O6.mcif from MAGNDATA · entry page

sha256 of this copy: aa45c8bed6b4a19b5cd5c95abb1565800064a66bdaab1cdf22d0271591d29732
The mirror keeps the bytes Bilbao served, so the original should hash the same unless MAGNDATA has revised the entry since: shasum -a 256 0.817_Mn(Nb0.5Ta0.5)2O6.mcif.

MnNb0.5Ta0.5O6

Symmetry

Source

Original file

MnNb_0.5Ta_0.5O₆