Research/Sitter/MAGNDATA / 2.3_HoNiO3.mcif

HoNiO₃

MAGNDATA entry 2.3 · source

noncoplanar magnet

Spins pointing in three dimensions, not confined to a plane.

ordered ≤ 3 K (−270 °C)Colour: where that sits relative to 25 °C. Saturation: how much margin it has.

Structure · 11 properties

Magnetic group	P 2₁ BNS 4.7
Point group	2
Parent space group	P 2₁/n No. 14
Spins	noncoplanar · net moment 0 μ_B per cell
Propagation	[1/2 0 1/2] · [0 0 0] 2k
Cell	a 10.364 · b 5.5105 · c 14.8467 Å · α 90° · β 90.084° · γ 90°
Transition	3 K (−270 °C)
Measured at	1.5 K
Magnetic ions	Ho, Ni
Largest moment component	6.71 μ_B
Method	parent setting non-standard P21/n

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 2₁ →

Atom sites · 20 sites · CSV

site	element	x	y	z	m_a	m_b	m_c	\|m\| (μ_B)
Ho1_1	Ho	−0.0091	0.0718	0.1252	−3.14	−6.71	−1.5	7.5578
Ho1_2	Ho	0.4909	0.0718	0.1252	−3.14	−6.71	−1.5	7.5578
Ho1_3	Ho	0.5091	−0.0718	0.3749	3.14	6.71	1.5	7.5578
Ho1_4	Ho	0.5091	−0.0718	−0.1252	3.14	6.71	1.5	7.5578
Ni1_1	Ni	0.25	0	0	0.9	0	1.1	1.4202
Ni1_2	Ni	0.25	0	0.5	−0.9	0	−1.1	1.4202
Ni2_1	Ni	0.25	0	0.25	0.35	0	−0.4	0.5319
Ni2_2	Ni	0.25	0	−0.25	−0.35	0	0.4	0.5319
O1_1	O	0.0491	−0.53	0.1224
O1_2	O	0.5492	−0.53	0.1224
O1_3	O	0.4508	−0.47	0.3776
O1_4	O	0.4508	−0.47	−0.1224
O2_1	O	0.35	−0.69	0.5247
O2_2	O	0.35	−0.69	0.0247
O2_3	O	0.15	−0.31	−0.0247
O2_4	O	0.15	−0.31	0.4753
O3_1	O	0.0935	−0.794	−0.0259
O3_2	O	0.5935	−0.794	−0.0259
O3_3	O	−0.0935	−0.206	0.0259
O3_4	O	0.4065	−0.206	0.0259

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

M.T. Fernandez-Diaz et al. PHYSICAL REVIEW B (2001) · doi:10.1103/physrevb.64.144417

Cite the original paper and MAGNDATA, not this mirror.

Original file

⬇ 2.3_HoNiO3.mcif from MAGNDATA · entry page

sha256 of this copy: 7e3d84c1d7254d7c82d5a43cb3ecca56f8782f448ace6c83820d85afa60c9e2c
The mirror keeps the bytes Bilbao served, so the original should hash the same unless MAGNDATA has revised the entry since: shasum -a 256 2.3_HoNiO3.mcif.