Research/Sitter/MAGNDATA / 0.26_TmAgGe.mcif

TmAgGe

MAGNDATA entry 0.26 · source

noncollinear ferrimagnet

Opposite moments of different size leave a net magnetisation.

ordered ≤ 4.2 K (−269 °C)Colour: where that sits relative to 25 °C. Saturation: how much margin it has.

Structure · 11 properties

Magnetic group	A m′ m′ 2 BNS 38.191
Point group	m′m′2
Parent space group	P 62m No. 189
Spins	coplanar · net moment 12.88 μ_B per cell
Propagation	[0 0 0] 1k
Cell	a 7.026 · b 7.026 · c 4.143 Å · α 90° · β 90° · γ 120°
Transition	4.2 K (−269 °C)
Measured at	1.5 K
Magnetic ions	Tm
Largest moment component	6.44 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 A m′ m′ 2 →

Atom sites · 6 sites · CSV

site	element	x	y	z	m_a	m_b	m_c	\|m\| (μ_B)
Tm1_1	Tm	−0.424	0	0.5	6.44	0	0	6.44
Tm1_2	Tm	−0.576	−0.576	0.5	6.44	6.44	0	6.44
Ag1_1	Ag	0.25	0	0
Ag1_2	Ag	0.75	0.75	0
Ge1_1	Ge	0.3333	−0.3333	0
Ge2_1	Ge	0	0	0.5

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. Baran et al. Journal of Magnetism and Magnetic Materials (2009) · doi:10.1016/j.jmmm.2009.05.064

Cite the original paper and MAGNDATA, not this mirror.

Original file

⬇ 0.26_TmAgGe.mcif from MAGNDATA · entry page

sha256 of this copy: d2aedf426580373d6dfb82159738e8dfaf407a20be55713de0a8ea09e13720c1
The mirror keeps the bytes Bilbao served, so the original should hash the same unless MAGNDATA has revised the entry since: shasum -a 256 0.26_TmAgGe.mcif.