Module Identifier | PH33510 | ||
Module Title | CRYSTALLINE SOLID STATE PHYSICS | ||
Academic Year | 2002/2003 | ||
Co-ordinator | Professor Neville Greaves | ||
Semester | Semester 1 | ||
Other staff | Dr Rudolf Winter | ||
Pre-Requisite | PH21510 , PH22010 , PH23010 | ||
Course delivery | Lecture | 20 lectures | |
Seminars / Tutorials | 2 workshops | ||
Assessment | Semester Exam | End of semester examinations | 80% |
Semester Assessment | Course Work: Assessed homework Deadline (by week of Semester): Week 6 | 10% | |
Semester Assessment | Course Work: Assessed homework Deadline (by week of Semester): Week 11 | 10% |
3 DIMENSIONAL GEOMETRY OF CRYSTALS
Crystal lattice, Unit Cell, Translational Invariance and Basis. Reciprocal Space. Scattering of a Plane Wave by a crystalline solid, Laue Conditions and Bragg's Law. Miller Indices, Crystal Planes and Stereograms. Bravais lattices and common cubic structures. Wigner-Seitz Cells and Brillouin Zones for cubic structures. Structure Factor, Atomic Form Factor and Crystallography.
VIBRATIONAL PROPERTIES OF SOLIDS
Atomic Vibrations, Phonons, Bose-Einstein statistics. Experimental probes - inelastic neutron and light Scattering. Dispersion Relations for a monatomic lattice. Phonon Modes within the Brillouin Zone. Diatomic lattice, optic and acoustic modes, Raman and Brillouin Scattering. Vibrational Density of States and Debye Model versus spectra for cubic structures.
ELECTRONIC BAND THEORY
Free electron gas, Electronic Density of States, Fermi-Dirac statistics and transport in simple cubic metals. Nearly Free Electron Model, Band Structure, Metals and Insulators. Fermi Surface of cubic metals and its measurement (De Haas-van Alphen Effect). Optical and Electrical properties of Metals.
MAGNETISM
Magnetisation, susceptibility and diamagnetism. Permanent electronic dipoles, paramagnetism and electron paramagnetic resonance (EPR). Ideal magnetic gas and Curie-Weiss Law. Exchange interaction, ferromagnetism and antiferromagnetism. Nuclear dipoles and Nuclear Magnetic Resonance (NMR).
SUPERCONDUCTIVITY
Tc and Bc and the Meissner Effect. Type I and Type II superconductors. London Equation. Phonon exchange, Cooper pairs and superconductivity energy gaps. Flux quantisation and Josephson Effect, quantum interference and SQUIDS. Metal oxide High Tc superconductors.