Sylabus:The course is devoted to the study of dielectric polarization and relaxation phenomena in condensed matter. A basic theory of dielectrics are given. Different experimental technique of dielectric spectroscopy are presented. The application of dielectric spectroscopy to different systems is considered.
The Physics Of Dielectrics 83887
- Lecture 1 Introduction into the physics of dielectrics. Permanent dipole moment. Induced dipole moment. Polarization and dielectric constant. Types of polarization, Electron polarization, Atomic polarization, Orientation polarization. Ionic polarization.
- Lecture 2 Dipole moments and electrostatic problems. Polarizability *. Polarization and energy. Internal field Langeven function. Non-polar dielctrics. Lorentz's field. Clausius-Massotti formula.
- Lecture 3 Reaction field. Polarization in gases, Debye's Theories, Polar molecules in nonpolar solvent. Onsager's theory. The dielectric properties of polar nonassociative liquids.
- Lecture 4 Statistical-mechanical approach to dielctric theory. Kirkwood-Fröhlich's equation. The Kirkwood correlation factor. Applications: pure dipole liquids, mixtures, dipolar solids.
- Lecture 5 The modern theories of the static dielectric permittivity (Böttcher, Nienhuis and Deutch, Ramshaw, Wertheim etc.).
- Lecture 6 The theory of linear response. The time dependent fields. The dielectric response function. The dielectric relaxation theory. Frequency and Time Domain.
- Lecture 7 The complex dielectric permittivity. Dielectric losses and dispersion. The distribution functions of the relaxation times. Cole-Cole distribution. Cole-Davidson distribution. Havriliak-Nehamy and Johnsher distributions.
- Lecture 8 The dipole correlation function. The relationship between the complex dielectric permittivity and the dipole correlation function. Short-range and long range correlation functions. Fulton's Theory.
- Lecture 9 The memory function. Kohlrausch-Williams-Watts (KWW) nonexponetial behavior in complex systems. The fractal nature of dielectric behavior.
- Lecture 10 Dielectric Spectroscopy. Classification of the experimental methods. Frequency methods: Bridges, Resonance methods, Coaxial lines, Waveguedes, Transient methods, Strip lines, etc.
- Lecture 11 Broad Band Dielectric Spectroscopy. A frequency response analyzer (10-4 Hz - 106 Hz), automatic radio - frequency bridge ( 10 Hz - 107 Hz) coaxial line reflectometer (106 Hz - 109 Hz) and coaxial vector network analyzer (107 Hz - 1010 Hz).
- Lecture 12 Time Domain Dielectric Spectroscopy. The single reflection and transition methods. Multiple reflection, transition, lumped capacitance methods. Nonuniform sampling. Furier transform and the time domain treatment.
- Lecture 13 The applications of dielectric spectroscopy. Pure liquids and Solutions. Liquid Crystals. Ferroelectric liquid crystals.
- Lecture 14 Ferroelectrics and Semiconductors. Phase Transitions of the first and second order.
- C.J.F. Boetcher Theory of Electric Polarization 2D ED. 2 volumes 1973-1978.
- H. Froehlich, Theory of Dielectrics ,1950, reprinted 1992.
- Dielectric and Related Molecular Processes 1972-1977 (3 v)
- J.B. Hasted Aqueous Dielectrics 1973 5. N.E. Hill Dielectric properties and Molecular Behaviour 1969.
- C.H. L. Goodman, Physics of Dielectrics Solids, 1980
- S. Takashima Electrical Properties of Biopolymers and Membranes 1989.
- E.H. Grant, R.J. Sheppard and G.P.South Dielectric Behaviour of Biological Molecules in Solutions , 1978.
- S.Bone and B.Zaba, Bioelectronics, 1992.