Research/Sitter/MAGNDATA / 1.1.101_Pd2.94Mn0.94.mcif

Pd_2.94Mn_0.94

MAGNDATA entry 1.1.101 · source

incommensurate spiral

Incommensurate: the magnetic pattern repeats every so many cells, but not a whole number of them, so it never lines up with the crystal lattice. Here it's a spiral: the spin direction rotates as you move along.

ordered ≤ 190 K (−83 °C)Colour: where that sits relative to 25 °C. Saturation: how much margin it has.

Structure · 11 properties

Magnetic group	R32′(0,0,γ)t0
Point group	32′
Parent space group	P m 3 m No. 221
Repeats every	10.29 cells along a (not a whole number: that's what incommensurate means)
Propagation	[0.0972 0.0972 0.0972] 1k
Cell	a 3.8877 · b 3.8877 · c 3.8877 Å · α 90° · β 90° · γ 90°
Transition	190 K (−83 °C)
Measured at	10 K
Magnetic ions	Mn
Largest moment component	3.36 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 R32′(0,0,γ)t0 →

Atom sites · 2 sites · CSV

site	element	x	y	z	m_a	m_b	m_c	\|m\| (μ_B)
Pd1_1	Pd	0.5	0	0.5
Mn1_1	Mn	0	0	0	1.67	1.67	1.67	2.8925

Incommensurate: the moments are modulated; the picture evaluates each atom's Fourier series at its own phase.

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

P. Onnerud et al. JOURNAL OF SOLID STATE CHEMISTRY · doi:10.1006/jssc.1996.7181

Cite the original paper and MAGNDATA, not this mirror.

Original file

⬇ 1.1.101_Pd2.94Mn0.94.mcif from MAGNDATA · entry page

sha256 of this copy: 51f908077492542225d84fdc3e10bc5a7489f5c1f8437dda6b560069cfd4d0d6
The mirror keeps the bytes Bilbao served, so the original should hash the same unless MAGNDATA has revised the entry since: shasum -a 256 1.1.101_Pd2.94Mn0.94.mcif.