3EC5A ELECTROMAGNETIC PROPERTIES OF MATERIALS (Common to EE, EC & EIC) |
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| Units | Contents of the subjects |
| DIELECTRICS MATERIALS - Introduction, Polarization, Polarizability, Different types of polarization, Electronic, ionic, Orientation and space polarization, frequency and temperature dependence of different polarization, Dielectric loss and loss tangent, energy store and loss in dynamic polarization, Phenomenon of spontaneous polarization and ferro-electricity, Ferroelectric hysteresis loop, Piezoelectricity, piezoelectric materials: Quartz, Rochelle salt and PZT , Applications of dielectrics | |
| MAGNETIC MATERIALS - Introduction, magnetization, theory of Dia, Para, Ferro- Ferrimagnetism and antiferromagnetism, Weiss field and magnetic domains, BH hysteresis loop, soft and hard magnetic materials and their applications, magnetic energy. Magnetostriction, giant magnetostriction resistor (GMR) and engineering applications of it. Magnetic spin, new electronic devices based on magnetic spin | |
| SEMI CONDUCTOR MATERIALS - Introduction, Energy band gap structures of semiconductors, Classifications of semiconductors, Degenerate and nondegenerate semiconductors, Direct and indirect band gap semiconductors, Electronic properties of Silicon, Germanium, Compound Semiconductor, Gallium Arsenide, Gallium phosphide & Silicon carbide, Variation of semiconductor conductivity, resistance and bandgap with temperature and doping. Thermistors, Sensitors | |
| CONDUCTIVE & SUPERCONDUCTIVE MATERIALS - Electrical properties of conductive and resistive materials. , Energy bandgap structures of metals, resistivity of conductors and multiphase solids, Matthiessen’s rule, Important characteristics and electronic applications of specific conductor & resistance materials, Superconductor phenomenon, Type I and Type II superconductors. Theory of superconductors, High temperature superconductors and their applications. | |
| NANOMATERIALS - Introduction, Change in band structure at nano-stage. Structure of Quantom dots (nano-dots) & Quantom wires, Fabrication & Characterization of nanomaterials, Structure of single wall and multi-wall carbon nanotube (CNT), Change in electrical, Electronic and optical properties at nano stage, Potential applications of nano materials. | |
Text/References:
1. Robert M Rose, Lawrence A. Shepard and Jhon Wulff, The structure and peroperties of materials vol.4
(Electronic properties), Willey Eastern University press.
2. Askeland – The science and engineering of materials, Cengage learning
3. Kasap, Principles of Electronic Materials and Devices, TMH
4. Electronic Materials and Processes, Kaul Bhan & Jain, Genius publications
5. Allison, Principles of Electronic Materials and Devices, TMH
6. Neamen, Semiconductor Physics and Devices, TMH
7. Guozhong Cao, Ying Wang Nanostructures and Nanomaterials Synthesis, Properties and Applications,
World Scientific Series in Nanoscience and Nanotechnology
8. Dekker, Electrical properties of materials