Metamaterial Properties of Magnetic Nanostructures - Invited presentation by R. Zivieri - Conferenza internazionale

In recent years the study of low-dimensional magnetic systems has become topical for achieving a deep understanding of the underlying physics of magnetic nanostructures and for its potential technological applications. Very recently, great attention has been devoted to the investigation of the effective and metamaterial properties of magnetic nanostructures with special regard to magnonic crystals, a class of periodic magnetic systems. In this talk it is shown according to micromagnetic simulations and analytical calculations that magnonic crystals exhibit effective properties directly linked to the static and dynamic properties of collective modes. Some possible applications based on the effective properties for tailoring new magnetic devices are suggested [1]. 1. R. Zivieri, L. Giovannini, Photonics Nanostruct. Fundam. Appl. 11, 191 (2013). 2. R. Zivieri, P. Malagò, L. Giovannini, Photonics Nanostruct. Fundam. Appl. 12, 398 (2014).