Research/Sitter/MAGNDATA / 1.161_PrFe3(BO3)4.mcif

PrFe₃(BO₃)₄

MAGNDATA entry 1.161 · source

antiferromagnet

No net magnetisation, and up and down sublattices are related by a shift or by inversion, so the bands stay spin-degenerate: a conventional antiferromagnet.

Spin group ¹1̄ × ²1: each symmetry marked ¹ keeps every spin, ² swaps up and down.

ordered ≤ 32 K (−241 °C)Colour: where that sits relative to 25 °C. Saturation: how much margin it has.

Structure · 11 properties

Magnetic group	R_I 32 BNS 155.48
Point group	321′
Parent space group	R 32 No. 155
Spins	collinear · net moment 0 μ_B per cell
Propagation	[0 0 3/2] 1k
Cell	a 9.506 · b 9.506 · c 15.066 Å · α 90° · β 90° · γ 120°
Transition	32 K (−241 °C)
Measured at	1.5 K
Magnetic ions	Fe, Pr
Largest moment component	4.32 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 R_I 32 →

Atom sites · 7 sites · CSV

site	element	x	y	z	m_a	m_b	m_c	\|m\| (μ_B)
Pr1	Pr	0	0	0	0	0	0.79	0.79
Fe1	Fe	0.5507	0	0	0.1	0.2	4.32	4.3235
B1	B	0	0	0.25
B2	B	0.4459	0	0.25
O1	O	0.8542	0	0.25
O2	O	0.5904	0	0.25
O3	O	0.0262	0.2149	0.0931

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

C. Ritter et al. J. Phys.: Condens. Matter (2010) · doi:10.1088/0953-8984/22/20/206002

Cite the original paper and MAGNDATA, not this mirror.

Original file

⬇ 1.161_PrFe3(BO3)4.mcif from MAGNDATA · entry page

sha256 of this copy: 7717af917e9dd3089a19296c8dbe37934af90e95cd28cdc4dcf6bb52b04eb6af
The mirror keeps the bytes Bilbao served, so the original should hash the same unless MAGNDATA has revised the entry since: shasum -a 256 1.161_PrFe3(BO3)4.mcif.