Description
Book SynopsisThe composition of modern semiconductor heterostructures can be controlled precisely on the atomic scale to create low-dimensional systems. These systems have revolutionised semiconductor physics, and their impact on technology, particularly for semiconductor lasers and ultrafast transistors, is widespread and burgeoning. This book provides an introduction to the general principles that underlie low-dimensional semiconductors. As far as possible, simple physical explanations are used, with reference to examples from actual devices. The author shows how, beginning with fundamental results from quantum mechanics and solid-state physics, a formalism can be developed that describes the properties of low-dimensional semiconductor systems. Among numerous examples, two key systems are studied in detail: the two-dimensional electron gas, employed in field-effect transistors, and the quantum well, whose optical properties find application in lasers and other opto-electronic devices. The book in
Table of ContentsPreface; Introduction; 1. Foundations; 2. Electrons and phonons in crystals; 3. Heterostructures; 4. Quantum wells and low-dimensional systems; 5. Tunnelling transport; 6. Electric and magnetic fields; 7. Approximate methods; 8. Scattering rates: the Golden Rule; 9. The two-dimensional electron gas; 10. Optical properties of quantum wells; Appendix 1. Table of physical constants; Appendix 2. Properties of important semiconductors; Appendix 3. Properties of GaAs-AlAs alloys at room temperature; Appendix 4. Hermite's equation: harmonic oscillator; Appendix 5. Airy functions: triangular well; Appendix 6. Kramers-Kronig relations and response functions; Bibliography.
