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Effective Diamagnetic Behavior of 2D Periodic and Binary Magnetic Systems

By Roberto Zivieri

Abstract

It is shown that two-dimensional periodic magnetic systems with in-plane magnetization\ud composed by a mixture of ferromagnetic materials have an effective diamagnetic behavior. Because of the\ud formation of effective “surface magnetic charges” resulting from the magnetization contrast at the\ud boundary between the two ferromagnetic materials, the demagnetizing field is parallel to the in-plane\ud external magnetic field in some regions of the unit cell. Some examples of real systems exhibiting this\ud behavior are given. The effective diamagnetic properties in a periodic mixture of ferromagnetic materials\ud allow to describe periodic magnetic systems as metamaterials

Topics: Two-dimensional magnetic systems, effective surface magnetic charges, effective diamagnetism
Publisher: Metamorphose VI AISBL
Year: 2016
DOI identifier: 10.1109/MetaMaterials.2016.7746425
OAI identifier: oai:iris.unife.it:11392/2353421
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