Research/Sitter/MAGNDATA / 1.95_BaNd2O4.mcif

BaNd₂O₄

MAGNDATA entry 1.95 · 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 ≤ 1.7 K (−271 °C)Colour: where that sits relative to 25 °C. Saturation: how much margin it has.

Structure · 11 properties

Magnetic group	P_a 2₁/c BNS 14.80
Point group	2/m1′
Parent space group	P n a m No. 62
Spins	coplanar · net moment 0 μ_B per cell
Propagation	[0 1/2 1/2] 1k
Cell	a 10.573 · b 24.864 · c 7.202 Å · α 90° · β 90° · γ 90°
Transition	1.7 K (−271 °C)
Measured at	0.3 K
Magnetic ions	Nd
Largest moment component	2.25 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_a 2₁/c →

Atom sites · 7 sites · CSV

site	element	x	y	z	m_a	m_b	m_c	\|m\| (μ_B)
Ba1	Ba	0.7499	0.3234	0.125
Nd1	Nd	0.4194	0.3063	0.125	1.39	2.25	0	2.6447
Nd2	Nd	0.4235	0.0564	0.125
O1	O	0.205	0.0845	0.125
O2	O	0.121	0.242	0.125
O3	O	0.524	0.394	0.125
O4	O	0.446	0.2075	0.125

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

A.A. Aczel et al. PHYSICAL REVIEW B (2014) · doi:10.1103/PhysRevB.90.134403

Cite the original paper and MAGNDATA, not this mirror.

Original file

⬇ 1.95_BaNd2O4.mcif from MAGNDATA · entry page

sha256 of this copy: 02add095057b07c983d88736e71d3bc4fa97dfd4c16ec43669b3556987c818a3
The mirror keeps the bytes Bilbao served, so the original should hash the same unless MAGNDATA has revised the entry since: shasum -a 256 1.95_BaNd2O4.mcif.