Crystal Structure Archives

This course "Solid State Physics" primarily focus the concepts of BSc Physics. It will help to create the actual physical concepts by experiments and simulations along with the video tutorials. These video tutorials will help graduate students to know more about the fundamentals of the solid-state physics. This course not only help basic fundamentals but will help to prepare various competitative and entrance exams. Crystal Structure in Solid State Physics: Solids: Amorphous and Crystalline Materials. Lattice Translation Vectors. Lattice with a Basis – Central and Non-Central Elements. Unit Cell. Miller Indices. Reciprocal Lattice. Types of Lattices. Brillouin Zones. Diffraction of X-rays by Crystals. Bragg’s Law. Atomic and Geometrical Factor. Elementary Lattice Dynamics: Lattice Vibrations and Phonons: Linear Monoatomic and Diatomic Chains. Acoustical and Optical Phonons. Qualitative Description of the Phonon Spectrum in Solids. Dulong and Petit’s Law, Einstein and Debye theories of specific heat of solids. T3 law Magnetic Properties of Matter: Dia-, Para-, Ferri- and Ferromagnetic Materials. Classical Langevin Theory of dia– and Paramagnetic Domains. Quantum Mechanical Treatment of Paramagnetism. Curie’s law, Weiss’s Theory of Ferromagnetism and Ferromagnetic Domains. Discussion of B-H Curve. Hysteresis and Energy Loss. Dielectric Properties of Materials: Polarization. Local Electric Field at an Atom. Depolarization Field. Electric Susceptibility. Polarizability. Clausius Mosotti Equation. Classical Theory of Electric Polarizability. Normal and Anomalous Dispersion. Cauchy and Sellmeir relations. Langevin-Debye equation. Complex Dielectric Constant. Optical Phenomena. Application: Plasma Oscillations, Plasma Frequency, Plasmons, TO modes. Ferroelectric Properties of Materials: Structural phase transition, Classification of crystals, Piezoelectric effect, Pyroelectric effect, Ferroelectric effect, Electrostrictive effect, Curie-Weiss Law, Ferroelectric domains, PE hysteresis loop. Elementary band theory: Kronig Penny model. Band Gap. Conductor, Semiconductor (P and N type) and insulator. Conductivity of Semiconductor, mobility, Hall Effect. Measurement of conductivity (04 probe method) & Hall coefficient. Superconductivity in Solid State Physics: Experimental Results. Critical Temperature. Critical magnetic field. Meissner effect. Type I and type II Superconductors, London’s Equation and Penetration Depth. Isotope effect. Idea of BCS theory Reference Books: Introduction to Solid State Physics, Charles Kittel, 8th Edition, 2004, Wiley India Pvt. Ltd. Elements of Solid State Physics, J.P. Srivastava, 4th Edition, 2015, Prentice-Hall of India Introduction to Solids, Leonid V. Azaroff, 2004, Tata Mc-Graw Hill Solid State Physics, by N.W. Ashcroft and N.D. Mermin, 1976, Cengage Learning; By H. Ibach and H. Luth, 2009, Springer ; By Rita John, 2014, McGraw Hill Elementary Solid State Physics, 1/e M. Ali Omar, 1999, Pearson India and by M.A. Wahab, 2011, Narosa Publications At the end of each chapter a practice test will be available so students can check their understanding about the subject. These practice test will be either quiz test or simple assignments that will be part of the related chapter. To make it interactive a separate application will be available where only registered students can interact lively for any problem.