Research/Sitter/MAGNDATA / 0.828_Na2MnPO4F.mcif

Na₂MnPO₄F

MAGNDATA entry 0.828 · 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 ¹2/¹m × ²1: each symmetry marked ¹ keeps every spin, ² swaps up and down.

ordered ≤ 10.4 K (−263 °C)Colour: where that sits relative to 25 °C. Saturation: how much margin it has.

Structure · 11 properties

Magnetic group	P 2₁/c′ BNS 14.78
Point group	2/m′
Parent space group	P 2₁/n No. 14
Spins	collinear · net moment 0 μ_B per cell
Propagation	[0 0 0] 1k
Cell	a 13.6509 · b 5.29272 · c 13.6786 Å · α 90° · β 119.657° · γ 90°
Transition	10.4 K (−263 °C)
Measured at	6 K
Magnetic ions	Mn
Largest moment component	2.62 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 2₁/c′ →

Atom sites · 18 sites · CSV

site	element	x	y	z	m_a	m_b	m_c	\|m\| (μ_B)
Mn1	Mn	0.1006	0.2722	0.6767	−1.8	0	2.62	3.8434
Mn2	Mn	0.3231	0.229	0.3996	−1.8	0	2.62	3.8434
P1	P	0.0773	0.2144	0.4153
P2	P	0.4145	0.7165	0.5766
Na1	Na	0.5867	0.2383	0.6665
Na2	Na	0.167	0.7438	0.5867
Na3	Na	0.3293	0.2414	0.6632
Na4	Na	0.1626	0.737	0.3281
F1	F	0.2365	0.9996	0.2368
F2	F	0.2341	0.9984	0.7414
O1	O	0.3472	0.8535	0.4638
O2	O	0.1372	0.2855	0.5399
O3	O	0.965	0.3534	0.351
O4	O	0.4069	0.4283	0.5558
O5	O	0.5385	0.7981	0.6348
O6	O	0.3636	0.7786	0.6517
O7	O	0.0552	0.9261	0.4037
O8	O	0.1523	0.2799	0.3648

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. Lochab et al. Journal of Solid State Chemistry (2022) · doi:10.1016/j.jssc.2022.122926

Cite the original paper and MAGNDATA, not this mirror.

Original file

⬇ 0.828_Na2MnPO4F.mcif from MAGNDATA · entry page

sha256 of this copy: 16502102ebb7077de50a629a6f04dfd92b5a46da81e5624ccd344ba6e79d2030
The mirror keeps the bytes Bilbao served, so the original should hash the same unless MAGNDATA has revised the entry since: shasum -a 256 0.828_Na2MnPO4F.mcif.