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Graphene-based Electronic Spin Lenses by Moghaddam, Ali G.; Zareyan, Malek is a scholarly article available to read on EtoBox.

What is Graphene-based Electronic Spin Lenses about?

We theoretically demonstrate the capability of a ferromagnetic-normal (FN) interface in graphene to focus an electron-wave with a certain spin direction. The essential feature is the negative refraction Klein tunneling, which is spin-resolved when the exchange energy of F graphene exceeds its Fermi energy. Exploiting this property, we propose a graphene NFN electronic spin lens through which an unpolarized electronic beam can be collimated with a finite spin-polarization. Our study reveals that magnetic graphene has the potential to be the electronic counterpart of the recently discovered photonic chiral meta-materials that exhibit a negative refractive index for only one direction of the circular polarization of the photon-wave.

Author

Moghaddam, Ali G.; Zareyan, Malek

Published

2010

Language

EN