Research/Sitter/MAGNDATA / 1.675_SrLaCuNbO6.mcif

Sr₁La₁Cu₁Nb₁O₆

MAGNDATA entry 1.675 · 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 ≤ 15.7 K (−257 °C)Colour: where that sits relative to 25 °C. Saturation: how much margin it has.

Structure · 11 properties

Magnetic group	P_S 1 BNS 2.7
Point group	11′
Parent space group	P 1 No. 2
Spins	collinear · net moment 0 μ_B per cell
Propagation	[1/2 1/2 1/2] 1k
Cell	a 15.5626 · b 15.6111 · c 16.7269 Å · α 89.51° · β 89.66° · γ 89.9°
Transition	15.7 K (−257 °C)
Measured at	3.5 K
Magnetic ions	Cu
Largest moment component	0.37 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_S 1 →

Atom sites · 24 sites · CSV

site	element	x	y	z	m_a	m_b	m_c	\|m\| (μ_B)
Sr1	Sr	0.1256	0.2415	0.247
La1	La	0.1256	0.2415	0.247
Sr2	Sr	0.1261	0.4905	0.2415
La2	La	0.1261	0.4905	0.2415
Sr3	Sr	0.124	0.242	0.491
La3	La	0.124	0.242	0.491
Sr4	Sr	0.3748	0.0085	0.0045
La4	La	0.3748	0.0085	0.0045
Nb1	Nb	0.0025	0.1265	0.3775
Nb2	Nb	0.2495	0.1309	0.129
Cu1	Cu	0.0025	0.1265	0.1265	0	0.37	0	0.37
Cu2	Cu	0.252	0.1275	0.375	0	0.37	0	0.37
O11	O	0.021	0.0052	0.11
O12	O	0.4765	0.1385	0.4885
O13	O	0.4835	0.251	0.1435
O14	O	0.0205	0.1045	0.257
O21	O	0.124	0.146	0.1105
O22	O	0.126	0.1125	0.399
O23	O	0.127	0.3615	0.1485
O24	O	0.125	0.396	0.3615
O31	O	0.233	0.499	0.1055
O32	O	0.2615	0.1405	0.011
O33	O	0.2245	0.1022	0.2369
O34	O	0.267	0.2485	0.1425

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

M. Watanabe et al. PHYSICAL REVIEW B (2022) · doi:10.1103/PhysRevB.105.054414

Cite the original paper and MAGNDATA, not this mirror.

Original file

⬇ 1.675_SrLaCuNbO6.mcif from MAGNDATA · entry page

sha256 of this copy: 1b450cda0dc6d088fb20b3040edd5b38a1f81b94b853d41cb109d07179fa70cc
The mirror keeps the bytes Bilbao served, so the original should hash the same unless MAGNDATA has revised the entry since: shasum -a 256 1.675_SrLaCuNbO6.mcif.

Sr1La1Cu1Nb1O6

Symmetry

Source

Original file

Sr₁La₁Cu₁Nb₁O₆