Negative refraction in natural ferromagnetic metals

Details Negative refraction in natural ferromagnetic metals Negative refraction in natural ferromagnetic metals

2010-11-16

arxiv.org/abs/1011.3663v1

Physics

Condensed Matter

Materials Science

Scientific paper

It is generally believed that Veselago's criterion for negative refraction cannot be fulfilled in natural materials. However, considering imaginary parts of the permittivity ({\epsilon}) and permeability ({\mu}) and for metals at not too high frequencies the general condition for negative refraction becomes extremely simple: Re({\mu}) < 0 --> Re(n) < 0. Here we demonstrate experimentally that in such natural metals as pure Co and FeCo alloy the negative values of the refractive index are achieved close to the frequency of the ferromagnetic resonance. Large values of the negative refraction can be obtained at room temperature and they can easily be tuned in moderate magnetic fields.

Affiliated with

Also associated with

No associations

Rating

Negative refraction in natural ferromagnetic metals does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with Negative refraction in natural ferromagnetic metals, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Negative refraction in natural ferromagnetic metals will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-464248