Research/Sitter/MAGNDATA / 1.651_Ho2BaCuO5.mcif

HoBaCuO₆

MAGNDATA entry 1.651 · 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 ≤ 17.5 K (−256 °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 m a No. 62
Spins	coplanar · net moment 0 μ_B per cell
Propagation	[0 1/2 0] 1k
Cell	a 12.1663 · b 11.3106 · c 7.1137 Å · α 90° · β 90° · γ 90°
Transition	17.5 K (−256 °C)
Measured at	12 K
Magnetic ions	Cu, Ho
Largest moment component	1.84 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 · 9 sites · CSV

site	element	x	y	z	m_a	m_b	m_c	\|m\| (μ_B)
Ho1	Ho	0.2878	0.125	0.1159	0.02	0	0.49	0.4904
Ho2	Ho	0.0743	0.125	0.3957	1.84	0	1.32	2.2645
Cu1	Cu	0.6604	0.125	0.7115	−0.34	0	0.28	0.4405
Ba1	Ba	0.9051	0.125	0.928
O1_1	O	0.4326	0.9966	0.1668
O1_2	O	0.9326	0.2534	0.3332
O2_1	O	0.2277	0.753	0.356
O2_2	O	0.7277	0.497	0.144
O3	O	0.1012	0.125	0.0817

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

P. Yanda et al. PHYSICAL REVIEW B (2021) · doi:10.1103/PhysRevB.104.144401

Cite the original paper and MAGNDATA, not this mirror.

Original file

⬇ 1.651_Ho2BaCuO5.mcif from MAGNDATA · entry page

sha256 of this copy: 00251314b9cccaa3cd37d669097c9e4e1542a3e1086739441c97d255ac7b376c
The mirror keeps the bytes Bilbao served, so the original should hash the same unless MAGNDATA has revised the entry since: shasum -a 256 1.651_Ho2BaCuO5.mcif.

HoBaCuO6

Symmetry

Source

Original file

HoBaCuO₆