Giant magneto-birefringence effect and tuneable colouration of 2D crystal suspensions.

ABSTRACT: One of the long-sought-after goals in light manipulation is tuning of transmitted interference colours. Previous approaches toward this goal include material chirality, strain and electric-field controls. Alternatively, colour control by magnetic field offers contactless, non-invasive and energy-free advantages but has remained elusive due to feeble magneto-birefringence in conventional transparent media. Here we demonstrate an anomalously large magneto-birefringence effect in transparent suspensions of magnetic two-dimensional crystals, which arises from a combination of a large Cotton-Mouton coefficient and relatively high magnetic saturation birefringence. The effect is orders of magnitude stronger than those previously demonstrated for transparent materials. The transmitted colours of

SUBMITTER: Ding B 

PROVIDER: S-EPMC7381639 | biostudies-literature | 2020 Jul

REPOSITORIES: biostudies-literature