Physical Properties of Materials
Code
7471
Academic unit
Faculdade de Ciências e Tecnologia
Department
Departamento de Ciências dos Materiais
Credits
6.0
Teacher in charge
Carlos Jorge Mariano Miranda Dias
Weekly hours
4
Total hours
70
Teaching language
Português
Objectives
To supply information about properties of the materials and how the structure, composition and morphology play a role on their final performances.
To define the selection criteria of the materials aiming their field of applications.
Prerequisites
Electromagnetism
Subject matter
Thermal properties. Specific heat. Law of Dulong-petit. Einstein model and Debye model of specific heat. Thermal conductivity and thermal expansion. Thermoelectric effects: Peltier, Seebeck and Thompson effects.
Electrical properties. Free electron model. Density of states and Fermi statistics. Thermionic effect, Field effect and Schottky effect. Semiconductors
Optical properties: Optical properties of metals. Semiconductors of direct and indirect gaps. Inter- and intra-band processes. Photoconductivity, recombination and trapping. Excitons. Photoelectric emission. Luminescence. Acousto-electric effect. Semiconductor lasers.
Dielectric properties. Ionic and molecular conduction. Interfacial polarization, dipolar, ionic and electronic polarization. Ferroelectricity, piroelectricity and piezoelectricity. Electrostriction. Dielectric spectroscopy.
Magnetic properties. Basic concepts. Types of magnetism: diag-, para-, ferro-, anti-ferro and ferrimagnetism. Langevin and molecular field theories. Applications. Soft and hard magnetic materials. Magnetic materials for memories and recording information.
Bibliography
Principles of Electronic Materials and Devices, Safa Kasap, MacGraw-Hill
Understanding Solids: The Science of Materials, Richard J. D. Tilley, Wiley
Properties of Materials, Mary Anne White, Oxford University Press, 1999
Electronic Processes in Non-Crystalline semiconductors, Mott and Davis, Oxford Press, 10979
Electronic Materials, L.A.A. Warnes, MacMillan Pub, 990
Introduction to Solid State Pysics , C. Kittel, Wiley, 1986,
Teaching method
Follow-up of students during problem solving and lab sessions. Supplying to the students all study elements, which are available in the paper department web site. Office hours available for individual or group discussions