Research/Sitter/MAGNDATA / 0.149_Nd3Ru4Al12.mcif

Nd₃Ru₄Al₁₂

MAGNDATA entry 0.149 · source

s-wave ferromagnet

All moments add up to a net magnetisation: an ordinary magnet. Spin splitting is the same in every direction (s-wave).

Spin group ¹m¹m¹m: each symmetry marked ¹ keeps every spin, ² swaps up and down.

ordered ≤ 39 K (−234 °C)Colour: where that sits relative to 25 °C. Saturation: how much margin it has.

Structure · 11 properties

Magnetic group	C m′ c′ m BNS 63.462
Point group	m′m′m
Parent space group	P 6₃/m m c No. 194
Spins	collinear · net moment 12.54 μ_B per cell
Propagation	[0 0 0] 1k
Cell	a 8.8598 · b 8.8598 · c 9.6168 Å · α 90° · β 90° · γ 120°
Transition	39 K (−234 °C)
Measured at	2 K
Magnetic ions	Nd
Largest moment component	2.66 μ_B
Method	NSD

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 C m′ c′ m →

Atom sites · 11 sites · CSV

site	element	x	y	z	m_a	m_b	m_c	\|m\| (μ_B)
Nd1_1	Nd	0.191	0.3821	0.25	0	0	0.95	0.95
Nd1_2	Nd	0.6179	0.8089	0.25	0	0	2.66	2.66
Ru1	Ru	0	0	0
Ru2_1	Ru	0.5	0	0
Ru2_2	Ru	0	0.5	0
Al1_1	Al	0.5616	0.1232	0.25
Al1_2	Al	0.8768	0.4384	0.25
Al2_1	Al	0.8377	0.6754	0.0754
Al2_2	Al	0.3246	0.1623	0.0754
Al3	Al	0.3333	0.6667	0.0087
Al4	Al	0	0	0.25

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

D.I. Gorbunov et al. PHYSICAL REVIEW B (2016) · doi:10.1103/PhysRevB.93.024407

Cite the original paper and MAGNDATA, not this mirror.

Original file

⬇ 0.149_Nd3Ru4Al12.mcif from MAGNDATA · entry page

sha256 of this copy: e3d94777bbcfe2a578ea01683c666755a0b3dadf50a6a1f1f1f1adfa9064c611
The mirror keeps the bytes Bilbao served, so the original should hash the same unless MAGNDATA has revised the entry since: shasum -a 256 0.149_Nd3Ru4Al12.mcif.