Gigantic Enhancement of Magneto-Chiral Effect in Photonic Crystals

Details Gigantic Enhancement of Magneto-Chiral Effect in Photonic Crystals Gigantic Enhancement of Magneto-Chiral Effect in Photonic Crystals

2005-03-03

arxiv.org/abs/cond-mat/0503066v3

Appl. Phys. Lett. 87, 042503 (2005)

Physics

Condensed Matter

Mesoscale and Nanoscale Physics

3 pages, 3 figures

Scientific paper

10.1063/1.2001735

We theoretically propose a method to enhance dramatically a magneto-chiral(MC) effect by using the photonic crystals composed of a multiferroic material. The MC effect, the directional birefringence even for unpolarized light, is so small that it has been difficult to observe experimentally. Two kinds of periodic structures are investigated; (a) a multilayer and (b) a stripe composed of a magneto-chiral material and air. In both cases, the difference in reflectivity between different magnetization directions is enhanced by a factor of hundreds compared with a bulk material.

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