Research/Sitter/MAGNDATA / 0.863_EuCd2As2.mcif

EuCd₂As₂

MAGNDATA entry 0.863 · 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 ¹3̄¹m: each symmetry marked ¹ keeps every spin, ² swaps up and down.

ordered ≤ 30 K (−243 °C)Colour: where that sits relative to 25 °C. Saturation: how much margin it has.

Structure · 11 properties

Magnetic group	C 2′/m′ BNS 12.62
Point group	2′/m′
Parent space group	P 3 m 1 No. 164
Spins	collinear · net moment 6.451 μ_B per cell
Propagation	[0 0 0] 1k
Cell	a 4.4499 · b 4.4499 · c 7.35 Å · α 90° · β 90° · γ 120°
Transition	30 K (−243 °C)
Measured at	5 K
Magnetic ions	Eu
Largest moment component	6.4 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 2′/m′ →

Atom sites · 3 sites · CSV

site	element	x	y	z	m_a	m_b	m_c	\|m\| (μ_B)
Eu1	Eu	0	0	0	6.4	3.2	3.3	6.4506
Cd1	Cd	0.3333	0.6667	0.6332
As1	As	0.3333	0.6667	0.2467

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

K. M. Taddei et al. PHYSICAL REVIEW B (2022) · doi:10.1103/PhysRevB.105.L140401

Cite the original paper and MAGNDATA, not this mirror.

Original file

⬇ 0.863_EuCd2As2.mcif from MAGNDATA · entry page

sha256 of this copy: 9a5d7c5f315dd4bd1ca4a9815d49cc7181585413ed6b68cbfdbe6e713e646be9
The mirror keeps the bytes Bilbao served, so the original should hash the same unless MAGNDATA has revised the entry since: shasum -a 256 0.863_EuCd2As2.mcif.