Scissors Mode and dichroism in an anisotropic crystal

TL;DR

This paper proposes a novel mechanism for dichroism in anisotropic crystals, linked to a scissors mode excitation, which could be observed in various systems and characterized by a strong magnetic dipole transition dependent on photon angle.

Contribution

It introduces the concept of scissors mode-induced dichroism in anisotropic crystals, expanding understanding of optical phenomena in complex systems.

Findings

Dichroism can arise from scissors mode excitations in anisotropic materials.

The effect involves a strong magnetic dipole transition amplitude.

The transition depends on the angle between photon momentum and anisotropy axis.

Abstract

We suggest that in an anisotropic crystal there should be a new mechanism of dichroism related to a scissors mode, a kind of excitation observed in several other many-body systems. Such an effect should be found in crystals, amorphous systems and also metallo-proteins. Its signature is a strong magnetic dipole transition amplitude, which is a function of the angle between the momentum of the photon and the anisotropy axis of the cell.