Automatic calculation of symmetry-adapted tensors under spin-group symmetry: STENSOR, a new tool of the Bilbao Crystallographic Server

Elcoro, L.; Etxebarria, J.; Perez-Mato, J.M.; Tasci, E.S.

doi:10.1107/S1600576726000944

Journal of Applied Crystallography Journal of Applied
Crystallography

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Figure 5
Relationship between the hexagonal unit vectors $[{\bf a}]$ and $[{\bf b}]$ (red) of Mn₃Sn and the spin basis vectors (green). In (a) a Cartesian basis, with vectors $[{\bf a}_{\rm s}]$ and $[{\bf b}_{\rm s}]$ , is used. In (b) an oblique spin basis, with vectors $[{\bf a}_{\rm s}^{\prime}]$ and $[{\bf b}_{\rm s}^{\prime}]$ , is employed to describe the Mn₃Sn structure with the spins rotated by 90°. In both figures the blue dashed lines represent the first and second axes of the reference frame used to express the tensors.

JOURNAL OF
APPLIED
CRYSTALLOGRAPHY

ISSN: 1600-5767

Volume 59| Part 2| April 2026| Pages 640-647

https://doi.org/10.1107/S1600576726000944

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