Research/Sitter/MAGNDATA / 1.870_NdCrGeO5.mcif

Nd₁Cr₁Ge₁O₅

MAGNDATA entry 1.870 · source

noncollinear antiferromagnet

All moments add up to a net magnetisation: an ordinary magnet. Spin splitting is the same in every direction (s-wave).

ordered ≤ 2.5 K (−271 °C)Colour: where that sits relative to 25 °C. Saturation: how much margin it has.

Structure · 11 properties

Magnetic group	P_b n m a BNS 62.451
Point group	mmm1′
Parent space group	P b a m No. 55
Spins	coplanar · net moment 0 μ_B per cell
Propagation	[0 0 1/2] 1k
Cell	a 7.5179 · b 8.5277 · c 11.4694 Å · α 90° · β 90° · γ 90°
Transition	2.5 K (−271 °C)
Measured at	1.9 K
Magnetic ions	Cr, Nd
Largest moment component	2.18 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_b n m a →

Atom sites · 7 sites · CSV

site	element	x	y	z	m_a	m_b	m_c	\|m\| (μ_B)
Nd1	Nd	0.1461	0.1753	0	0.89	−2.18	0	2.3547
Cr1	Cr	0	0.5	0.1289	0.14	−0.24	0	0.2778
Ge1	Ge	0.387	0.3579	0.25
O1	O	0	0	0.1442
O2	O	0.1645	0.4489	0
O3	O	0.1662	0.4248	0.25
O4	O	0.3995	0.2164	0.1293

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

Masashi Hase et al. Journal of Magnetism and Magnetic Materials (2025) · doi:10.1016/j.jmmm.2025.172970

Cite the original paper and MAGNDATA, not this mirror.

Original file

⬇ 1.870_NdCrGeO5.mcif from MAGNDATA · entry page

sha256 of this copy: 32a3c8aba367c638f2e82f436ff05c697b3b2eebe9d2832b8a74db8a8ec9205e
The mirror keeps the bytes Bilbao served, so the original should hash the same unless MAGNDATA has revised the entry since: shasum -a 256 1.870_NdCrGeO5.mcif.

Nd1Cr1Ge1O5

Symmetry

Source

Original file

Nd₁Cr₁Ge₁O₅