Page 66 - Maxwell House

46 Chapter 2

Chapter Contents

Introduction 47
2.1 TORQUE EXERTED BY 2.5.2 Drude-Lorentz’s Model of Metal 73
Dielectric Constant
ELECTRIC AND MAGNETIC 2.5.3 Ionospheric Plasma with Negative
FIELD 47
2.1.1 Mechanical Torque Examples 47 2.5.4 Dielectric Constant 75
Broadband Complex Constant
2.1.2 Torque Exerted by Magnetic Field 48 () of Dielectrics 77
2.1.3 Torque Exerted by Electric 2.6 FERRO-MATERIALS 78
Field 51
2.2 PHENOMENA OF ELECTRIC 2.6.1 Introduction 78
Basic Description of Ferro-Materials 79
2.6.2
AND MAGNETIC 2.6.3 Ferromagnetics 80
POLARIZATION, ELECTRICAL 2.6.4 Ferrimagnetic and Ferrites 83
CONDUCTANCE 51
2.2.1 Phenomenon of Electric Polarization 51 2.6.5 Complex Magnetic Constant of Non- 83
Magnetized Ferrite
2.2.2 Polarization Vector. Permittivity and
Dielectric Constant 52 2.6.6 Ferroelectrics 84
2.2.3 Dielectric Constant of Composite 2.7 EM FIELDS IN MAGNETIZED
Materials 54 FERRITES 85
2.2.4 Dielectric Constant of Anisotropic 2.7.1 Introduction 85
2.7.2
Free Precession in Fully Magnetized
Materials 55
2.2.5 Phenomenon of Magnetic Polarization 56 2.7.3 Ferrite 86
Force Precession in Fully Magnetized
2.2.6 Phenomenon of Electric Conductance 58 Ferrite 87
2.2.7 Polarized Conductive Body in Electric 2.7.4 Permeability of Fully Magnetized
Fields 59
88
2.2.8 Ohm’s Law 61 2.8 Ferrite 90
METAMATERIALS
2.2.9 Per Square Resistance 62 2.8.1 Introduction 90
2.3 BOUNDARY CONDITIONS 63 2.8.2 Negative Permittivity and
2.3.1 Introduction 63 Permeability 93
2.3.2 Boundary Conditions on Normal 2.9 GRAPHENE 95
Components of Field 64
2.3.3 Boundary Conditions for Tangential 2.9.1 Introduction 95
Components of Field 65 2.9.2 Graphene as a Conductor 96
2.3.4 Dielectric-Dielectric Interface 66 2.9.3 Conductivity of Magnetically 99
Biased Graphene
2.3.5 Dielectric-Perfect Electrical 2.9.4 Graphene as Shielding Material 100
Conductor (PEC) Interface 67
2.3.6 Superconductors 68 2.9.5 Conductive Graphene NanoRibbon
(GNR) Thin Film as Deicing Coating 101
2.4 CLASSIFICATION OF 2.9.6 Graphene-Based Electromechanical
MATERIALS BASED ON THEIR Switch 103
ELECTRICAL AND MAGNETIC 2.10 SOME ADDITIONAL
PROPERTY 69
2.4.1 Complex-Valued Dielectric and 2.10.1 PROPERTIES OF MATERIALS 103
Kramers-Kronig (K-K)
Magnetic Constant 69
2.4.2 Classification of Materials Based on 2.10.2 Relations 103
Eliminating Negative Frequencies in
Their Electrical Property 71
2.4.3 Linearity and Nonlinearity 72 the K-K Relations 105
2.5 BROADBAND COMPLEX- 2.10.3 Remote Sensing and K-K Relations 105
107
Eddy Current
2.10.4
VALUED MATERIAL 2.10.5 Eddy Current in Power Transformer
PARAMETERS 72
2.5.1 Introduction 72 Core 108
REFERENCES 111