학술논문

Magnetic group analysis of electromagnetic modes in C2ν (C2)-symmetric graphene array
Document Type
Conference
Source
2017 SBMO/IEEE MTT-S International Microwave and Optoelectronics Conference (IMOC) Microwave and Optoelectronics Conference (IMOC), 2017 SBMO/IEEE MTT-S International. :1-5 Aug, 2017
Subject
Aerospace
Communication, Networking and Broadcast Technologies
Components, Circuits, Devices and Systems
Fields, Waves and Electromagnetics
Photonics and Electrooptics
Signal Processing and Analysis
Graphene
Magnetic cores
Magnetic resonance
Current distribution
Current density
Magnetic analysis
Language
Abstract
In this work we analyse properties of symmetric devices with magnetic media by using magnetic group tools. The point-group theory has been used frequently to describe electromagnetic responses of nonmagnetic symmetric components. In a structure with magnetic medium biased by a magnetic field, usually some of the symmetry transformations of the corresponding nonmagnetic component are lost and non-unitary transformations appear. This changes the algebraic structure of the group and also changes its representations. We develop a general method of application of the theory of corepresentations of magnetic groups using as an example a current density modes in a magnetized graphene array described by magnetic symmetry C 2v (C 2 ).