Research/Sitter/MAGNDATA / 0.657_PrMn2Ge2.mcif

PrMn₂Ge₂

MAGNDATA entry 0.657 · source

noncollinear ferrimagnet

Opposite moments of different size leave a net magnetisation.

ordered ≤ 330 K (57 °C)Colour: where that sits relative to 25 °C. Saturation: how much margin it has.

Structure · 10 properties

Magnetic group	I m′ m 2′ BNS 44.231
Parent space group	I 4/m m m No. 139
Spins	coplanar · net moment 4.2 μ_B per cell
Propagation	[0 0 0] 1k
Cell	a 4.123 · b 4.123 · c 10.925 Å · α 90° · β 90° · γ 90°
Transition	330 K (57 °C)
Measured at	295 K
Magnetic ions	Mn, Pr
Largest moment component	2.19 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 I m′ m 2′ →

Atom sites · 3 sites · CSV

site	element	y	z	m_a	m_b	m_c	\|m\| (μ_B)
Pr1	Pr	0	0
Mn1	Mn	0.5	0.25	−2.19	0	1.05	2.4287
Ge1	Ge	0	0.381

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

R. Welter et al. Journal of AlAys and Compounds (1995) · doi:10.1016/0925-8388(94)01378-0

Cite the original paper and MAGNDATA, not this mirror.

Original file

⬇ 0.657_PrMn2Ge2.mcif from MAGNDATA · entry page

sha256 of this copy: ca7543aff303d818f217c992c08793e78d206785b122711fea25987e72cf740c
The mirror keeps the bytes Bilbao served, so the original should hash the same unless MAGNDATA has revised the entry since: shasum -a 256 0.657_PrMn2Ge2.mcif.