CODICE 94801 ANNO ACCADEMICO 2020/2021 CFU 6 cfu anno 1 SCIENZA E INGEGNERIA DEI MATERIALI 9017 (LM-53) - GENOVA SETTORE SCIENTIFICO DISCIPLINARE FIS/03 LINGUA Inglese SEDE GENOVA PERIODO 2° Semestre MATERIALE DIDATTICO AULAWEB PRESENTAZIONE il corso verrà tenuto in lingua inglese. OBIETTIVI E CONTENUTI OBIETTIVI FORMATIVI Achieving a thorough understanding of the properties solids at the microscopic level. Students will master the concepts of crystal lattice, lattice dynamics, electronic band structure, dielectric response and electronic excitations, magnetic properties and excitations, as well as the origin of metallic, semiconductor and insulator behavior PROGRAMMA/CONTENUTO Review of wave phenomena, plane waves, normal modes, Fourier analysis, wavepackets, Maxwell equations, Schrodinger equation and atomic orbitals. Introduction to the periodic structure of solids, direct lattice, translational and point symmetries, Bravais lattices, lattice with a basis, Wigner-Seitz cell, types of chemical bonds, structure of elements and simple compounds. Interference and diffraction of waves, Laue and Bragg condition, reciprocal lattice, Brillouin zones. Brief introduction on X-ray diffraction. Vibrational dynamics of solids, monoatomic and diatomic chains, acoustic and optical branches, quantization of vibrations and phonons, density of states, Einstein and Debye models, specific heat, brief analysis of anharmonicity to treat thermal expansion. Brief introduction on inelastic neutron scattering. Free electron models: classical Drude model, electrical conduction, Hall effect, thermal properties. Quantum statistics of identical particles, bosons and fermions, Sommerfeld model, Fermi sphere, Fermi energy and chemical potential, Sommerfeld expansion and correction to the Fermi energy. Failure of the classical description. Independent electron approximation in a periodic potential, Bloch theorem and band theory. Weak periodic potential and nearly free electron approximation, electronic structure and Fermi surface. Tight Binding approximation. Valence and conduction bands, electron velocity, electrical properties of full and partially filled bands, concept of holes. Metals, semiconductors, and insulators. TESTI/BIBLIOGRAFIA “Introduction to Solid State Physics”, Charles Kittel, 8th ed., John Wiley & Sons, 2005. “Solid state physics”, N. W. Ashcroft, N. D. Mermin, Harcourt College Publishers, 1976. DOCENTI E COMMISSIONI MARIO AGOSTINO ROCCA Ricevimento: Il docente riceverà gli studenti il giovedi mattina nel proprio studio al DIFI Commissione d'esame MARIO AGOSTINO ROCCA (Presidente) LUCA VATTUONE GIANANGELO BRACCO (Presidente Supplente) SILVANA TERRENI (Supplente) ESAMI Calendario appelli Data appello Orario Luogo Tipologia Note 22/01/2021 15:00 GENOVA Orale 10/02/2021 15:00 GENOVA Orale 11/06/2021 09:30 GENOVA Orale 17/06/2021 15:00 GENOVA Orale 06/07/2021 09:30 GENOVA Orale 22/07/2021 15:00 GENOVA Orale 09/09/2021 15:00 GENOVA Orale