Research/Sitter/MAGNDATA / 0.980_TmVO3.mcif

Tm₁V₁O₃

MAGNDATA entry 0.980 · source

d-wave altermagnet

No net magnetisation, yet the electron bands are spin-split: the up and down spin sublattices are related only by a rotation or mirror, never by a shift or inversion. d-wave: the splitting changes sign twice around the Fermi surface (2 nodal planes).

Spin group ¹m²m²m: each symmetry marked ¹ keeps every spin, ² swaps up and down.

ordered ≤ 105 K (−168 °C)Colour: where that sits relative to 25 °C. Saturation: how much margin it has.

Structure · 11 properties

Magnetic group	P n′ m′ a BNS 62.446
Point group	m′m′m
Parent space group	P n m a No. 62
Spins	collinear · 2 nodal planes · net moment 0 μ_B per cell
Propagation	[0 0 0] 1k
Cell	a 5.55395 · b 7.5282 · c 5.24731 Å · α 90° · β 90° · γ 90°
Transition	105 K (−168 °C)
Measured at	50 K
Magnetic ions	V
Largest moment component	1.3 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 n′ m′ a →

Atom sites · 4 sites · CSV

site	element	x	y	z	m_a	m_b	m_c	\|m\| (μ_B)
Tm1	Tm	0.0692	0.25	−0.0234
V1	V	0	0	0.5	0	1.3	0	1.3
O1	O	0.4576	0.25	0.1197
O2	O	0.3002	0.0602	0.6868

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. Phys. Rev. B (2016) · doi:10.1103/PhysRevB.93.054423

Cite the original paper and MAGNDATA, not this mirror.

Original file

⬇ 0.980_TmVO3.mcif from MAGNDATA · entry page

sha256 of this copy: b15ad45727ace48296045e0527842bde4f21ddf5a0058dcef7e3aeaca2b1962b
The mirror keeps the bytes Bilbao served, so the original should hash the same unless MAGNDATA has revised the entry since: shasum -a 256 0.980_TmVO3.mcif.

Tm1V1O3

Symmetry

Source

Original file

Tm₁V₁O₃