Soluzioni alle domande degli esami di Solid State Physics - digitali (apple pencil)

Questions solid state physics

• 123:15 - The base vectors of the reciprocal lattice and their connection with the base vectors of the corresponding real lattice
• The properties of the reciprocal lattice
• 76 - Miller indexes
• 17 Diffraction: - X-rays, neutrons and electrons: discuss the kind of information that they can give if used as probes in diffraction experiments
• The Von Laue condition for diffraction
• The Bragg condition and its physical assumptions (and why they are not reasonable)
• 20 - Equivalence of Von Laue and Bragg condition
• 21 - The Ewald sphere and the various kind of diffraction experimental techniques
• 22 Lattice oscillations - The dynamical equation of the lattice oscillations and their solutions.
• 23 - What is a phonon dispersion relation: - Discuss the oscillations of a linear chain of equal atoms
• Discuss the oscillations of a linear chain of two different atoms.
• 26 - Acoustical and optical modes of oscillation of a lattice.
• 27 - Measurement of the phonon dispersion relations.: - The conservation of the crystal momentum: its meaning and the difference with respect to the conservation of momentum.
• The density of states of the lattice oscillations
• 30 Specific heats
• 37 - Quantization of lattice oscillations
• The need of a quantum model for explaining the temperature dependence of the specific heat
• 32 - The Einstein model of the specific heat
• 33 - The Debye model of the specific heat
• 34 Thermal conductivity - Why the thermal conductivity of a perfect harmonic lattice in infinite
• 35 - The phenomenological aspects of the temperature dependence of thermal conductivity in solids
• 36 - How to model thermal conductivity and the role of scattering
• 37 - Phonon phonon interaction
• 38 - Normal and umklapp processes and their role in thermal conductivity
• 39 Bloch theorem - Approximations in modeling the electron states in a solid: - Bloch waves: their physical interpretation
• How to demonstrate the Bloch theorem working in the real space: - How to demonstrate the Bloch theorem working in the reciprocal space
• Periodicity of the electron states in a solid in the reciprocal space: - The energy bands
• The nearly free electron model ÷ - The tight binding model
• The Fermi surface
• 48 comparisse* electron states phonons-Electron transport
• The basic ingredients of the semiclassical model of electron transport in solids
• 49 - The concept of effective mass
• 50 - Describe the Bloch oscillations and why it is usually impossible to observe them
• 51 Superconductivity - The most relevant aspects of superconductivity
• 52 - The Landau Ginzburg theory of superconductivity
• 53 - The basic assumptions of the BCS theory of superconductivity
• 54 implicazioni

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