Eur. Phys. J. B 45, 347-353 (2005)
https://doi.org/10.1140/epjb/e2005-00198-y

Magneto-optical effect of left-handed material

¹ Department of Physics, Suzhou University, Suzhou 215006, China
² National Laboratory of Solid State Microstructures, Nanjing University, Nanjing 215006, China
³ CCAST (World Laboratory), P.O. Box 8730, Beijing 100080, China

Corresponding author: ^a haixia8779@163.com

Received: 20 January 2005
Published online: 6 July 2005

Abstract

In this paper, we suggest a possibility of providing left-handed material with parallel ferromagnetic nanowires electrodeposited into an insulating polycarbonate membrane. We find that such a composite shows left-handed properties when the damping factor α satisfies , where is the critical damping factor which is affected by the filling factor of ferromagnetic nanowires. We also investigate the magneto-optical properties of such a composite and find that at the frequency region where the composite exhibits left-handed property, both the Faraday rotation angle and ellipticity of the film show obvious change apart from a jump in transmission coefficient at the frequency region near the ferromagnetic resonance frequency. Compared with the pure ferromagnetic film, a larger Faraday rotation angle is obtained in our model, which may be useful for the application of magneto-optical devices.