Research/Sitter/MAGNDATA / 0.982_TmVO3.mcif

Tm₁V₁O₃

MAGNDATA entry 0.982 · source

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.

Spin group ²2/²m: 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 2₁/c BNS 14.75
Point group	2/m
Parent space group	P 1 1 2₁/a No. 14
Spins	collinear · 1 nodal planes · net moment 0 μ_B per cell
Propagation	[0 0 0] 1k
Cell	a 5.59256 · b 7.51609 · c 5.24443 Å · α 90° · β 90° · γ 90.0134°
Transition	105 K (−168 °C)
Measured at	85 K
Magnetic ions	V
Largest moment component	0.93 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 2₁/c →

Atom sites · 6 sites · CSV

site	element	x	y	z	m_a	m_b	m_c	\|m\| (μ_B)
Tm1	Tm	0.0711	0.2525	−0.0218
V1_1	V	0.5	0	0	0.93	0.36	0	0.9972
V1_2	V	0.5	0.5	0	0.93	0.36	0	0.9972
O1	O	0.4567	0.2536	0.1173
O2_1	O	0.3107	0.0575	0.6956
O2_2	O	0.7007	0.5602	0.3155

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

⬇ 0.982_TmVO3.mcif from MAGNDATA · entry page

sha256 of this copy: 64b18ca4b1873c118117e9ba138337e22f84a88b31ef8804db2b9684737438f1
The mirror keeps the bytes Bilbao served, so the original should hash the same unless MAGNDATA has revised the entry since: shasum -a 256 0.982_TmVO3.mcif.

Tm1V1O3

Symmetry

Source

Original file

Tm₁V₁O₃