Research/Sitter/MAGNDATA / 1.0.29_CeIrGe3.mcif

CeIrGe₃

MAGNDATA entry 1.0.29 · source

s-wave compensated ferrimagnet

Opposite moments cancel, but the two sublattices aren't related by any symmetry, so the bands split like a ferromagnet's (s-wave).

Spin group ¹4/¹m¹m¹m: each symmetry marked ¹ keeps every spin, ² swaps up and down.

ordered ≤ 4.7 K (−268 °C)Colour: where that sits relative to 25 °C. Saturation: how much margin it has.

Structure · 10 properties

Magnetic group	I 4 m′ m′ BNS 107.231
Parent space group	I 4 m m No. 107
Spins	collinear · net moment 0 μ_B per cell
Propagation	[0 0 2/3] 1k
Cell	a 4.401 · b 4.401 · c 30.072 Å · α 90° · β 90° · γ 90°
Transition	4.7 K (−268 °C)
Measured at	1.5 K
Magnetic ions	Ce
Largest moment component	0.62 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 I 4 m′ m′ →

Atom sites · 12 sites · CSV

site	element	x	y	z	m_a	m_b	m_c	\|m\| (μ_B)
Ce1_1	Ce	0	0	0.1667	0	0	0.45	0.45
Ce1_2	Ce	0.5	0.5	0.3333	0	0	−0.62	0.62
Ce1_3	Ce	0	0	0.5	0	0	0.17	0.17
Ir1_1	Ir	0	0	0.053
Ir1_2	Ir	0.5	0.5	0.2197
Ir1_3	Ir	0	0	0.3864
Ge1_1	Ge	0	0	0.3066
Ge1_2	Ge	0.5	0.5	0.4733
Ge1_3	Ge	0	0	0.64
Ge2_1	Ge	0	0.5	0.0877
Ge2_2	Ge	0.5	0	0.2544
Ge2_3	Ge	0	0.5	0.421

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

V.K. Anand et al. PHYSICAL REVIEW B (2018) · doi:10.1103/PhysRevB.97.184422

Cite the original paper and MAGNDATA, not this mirror.

Original file

⬇ 1.0.29_CeIrGe3.mcif from MAGNDATA · entry page

sha256 of this copy: cc543ad532522c1a76cae6fae45b98fa58e0c37553ffdee633a6dbf40d95a6b8
The mirror keeps the bytes Bilbao served, so the original should hash the same unless MAGNDATA has revised the entry since: shasum -a 256 1.0.29_CeIrGe3.mcif.