Research/Sitter/MAGNDATA / 0.990_HoFeO3.mcif

Ho₁Fe₁O₃

MAGNDATA entry 0.990 · source

noncoplanar ferrimagnet

Opposite moments of different size leave a net magnetisation.

ordered ≤ 6.5 K (−267 °C)Colour: where that sits relative to 25 °C. Saturation: how much margin it has.

Structure · 11 properties

Magnetic group	P n′ m′ a BNS 62.446
Point group	m′m′m
Parent space group	P b n m No. 62
Spins	noncoplanar · net moment 13.6 μ_B per cell
Propagation	[0 0 0] 1k
Cell	a 5.2779 · b 5.5873 · c 7.6011 Å · α 90° · β 90° · γ 90°
Transition	6.5 K (−267 °C)
Measured at	1.25 K
Magnetic ions	Fe, Ho
Largest moment component	6.68 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 n′ m′ a →

Atom sites · 4 sites · CSV

site	element	x	y	z	m_a	m_b	m_c	\|m\| (μ_B)
Ho1	Ho	0.481	0.4322	0.75	3.4	−6.68	0	7.4955
Fe1	Fe	0.5	0	0	0	0	4.6	4.6
O1	O	0.6056	0.0408	0.75
O2	O	0.6936	0.3087	0.0578

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

W. C. Koehler et al. Physical Review (1960) · doi:10.1103/PhysRev.118.58

Cite the original paper and MAGNDATA, not this mirror.

Original file

⬇ 0.990_HoFeO3.mcif from MAGNDATA · entry page

sha256 of this copy: b8a1ca2895c9d91b2481d9b719a086761533f44ffa137acabd63a6d3f2bf8b47
The mirror keeps the bytes Bilbao served, so the original should hash the same unless MAGNDATA has revised the entry since: shasum -a 256 0.990_HoFeO3.mcif.

Ho1Fe1O3

Symmetry

Source

Original file

Ho₁Fe₁O₃