Research/Sitter/MAGNDATA / 0.339_Nd2Hf2O7.mcif

Nd₂Hf₂O₇

MAGNDATA entry 0.339 · source

noncoplanar magnet

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

ordered ≤ 0.6 K (−273 °C)Colour: where that sits relative to 25 °C. Saturation: how much margin it has.

Structure · 10 properties

Magnetic group	F d 3 m′ BNS 227.131
Parent space group	F d 3 m No. 227
Spins	noncoplanar · net moment 0 μ_B per cell
Propagation	[0 0 0] 1k
Cell	a 10.6389 · b 10.6389 · c 10.6389 Å · α 90° · β 90° · γ 90°
Transition	0.55 K (−273 °C)
Measured at	0.1 K
Magnetic ions	Nd
Largest moment component	0.36 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 F d 3 m′ →

Atom sites · 4 sites · CSV

site	element	x	y	z	m_a	m_b	m_c	\|m\| (μ_B)
Nd1	Nd	0.5	0.5	0.5	0.36	0.36	0.36	0.6235
Hf1	Hf	0	0	0
O1	O	0.3317	0.125	0.125
O2	O	0.375	0.375	0.375

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

V.K. Anand et al. PHYSICAL REVIEW B (2015) · doi:10.1103/PhysRevB.92.184418

Cite the original paper and MAGNDATA, not this mirror.

Original file

⬇ 0.339_Nd2Hf2O7.mcif from MAGNDATA · entry page

sha256 of this copy: d1a12a178e657121de7c7580f148802ef61e7e2c227bbe88205d122596d64322
The mirror keeps the bytes Bilbao served, so the original should hash the same unless MAGNDATA has revised the entry since: shasum -a 256 0.339_Nd2Hf2O7.mcif.