On the possibility of using X-ray Compton scattering to study magnetoelectrical properties of crystals

Collins, S.P.; Laundy, D.; Connolley, T.; van der Laan, G.; Fabrizi, F.; Janssen, O.; Cooper, M.J.; Ebert, H.; Mankovsky, S.

doi:10.1107/S2053273316000863

Acta Crystallographica Section A
Acta Crystallographica
Section A FOUNDATIONS AND ADVANCES

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Figure 2
Left: a classical representation of the dipole (vector) moments permitted by a classical orbital. The magnetic moment $[{\boldmu}]$ points out of the page and is perpendicular to the orbital plane. The polar (electric dipole) moment, $[{\bf p}]$ , lies parallel to the major orbital axis. The toroidal moment, T, lies perpendicular to the polar and magnetic moments, in the direction of their cross-product, and is thus odd under reversal of either, but even under reversal of both. Right: the slightly counter-intuitive case of zero magnetic moment and parallel polar and toroidal moments can be visualized classically as the superposition of two rotated and reflected orbitals, forming a `butterfly' pattern.

FOUNDATIONS
ADVANCES

ISSN: 2053-2733

Volume 72| Part 2| March 2016| Pages 197-205

https://doi.org/10.1107/S2053273316000863

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