Unit CONDENSED MATTER EXPERIMENTAL TECHNIQUES
- Course
- Physics
- Study-unit Code
- GP005941
- Location
- PERUGIA
- Curriculum
- Fisica della materia
- Teacher
- Francesco Sacchetti
- Teachers
-
- Francesco Sacchetti
- Hours
- 42 ore - Francesco Sacchetti
- CFU
- 6
- Course Regulation
- Coorte 2021
- Offered
- 2022/23
- Learning activities
- Affine/integrativa
- Area
- Attività formative affini o integrative
- Academic discipline
- FIS/03
- Type of study-unit
- Opzionale (Optional)
- Type of learning activities
- Attività formativa monodisciplinare
- Language of instruction
- Italian
- Contents
- Linear response.
Extensive and intensive physical quantities.
Measurement of intensive quantities:
dielectric and optic response, magnetization (magnetic materials), thermodynamic measurements.
Introductory material to scattering theory.
Matter EM radiation interaction.
Different probes and their interactions: neutrons, electrons and muons.
EM radiation in different energy regions.
Diffraction and inelastic scattering of x-ray, Compton scattering, Mossbauer effect.
Diffraction and inelastic scattering of neutron, neutron magnetic scattering.
Nuclear, electronic, muonic magnetic resonance. - Reference texts
- C. Kittel, Quantum theory of solids
B. E. Warren, x-ray diffraction
F. Wooten, Optical properties of solids
S. W. Lovesey, Theory of neutron scattering from condensed matter - Educational objectives
- The student must acquire an adequate knowledge of the experimental techniques for condensed matter physics, having the capability of determining the appropriate technique useful for different systems, working autonomously and in collaboration with other persons.
- Prerequisites
- The student must posses the basic knowledge of quantum mechanics of many body systems and the basic knowledge of condensed matter physics, other than the physics regarding mechanics and electromagnetism.
- Teaching methods
- Class lectures on the different arguments and description of the different experimental techniques and connected systems.
- Other information
- Specific problems related to the course can be discussed with the teacher.
- Learning verification modality
- The final examination will be based on a presentation and discussion of a set of experimental spectroscopic techniques. The presentation will be similar to a typical seminar to present scientific results, lasting 45 minutes, including questions.
- Extended program
- Linear response.
Extensive and intensive physical quantities.
Measurement of intensive. Linear response and Kramers-Kroenig transformations. Time causality. Measurement of intensive quantities:
dielectric with electromagnetic fields and optic response in the VIS region, real and imaginary part of the refractive index and relation to the dielectric response. Measurement of the magnetization of different magnetic materials, ferromagnetism and antiferromagnetism. Thermodynamic measurements of thermodynamic potentials and specific heat. Calorimeters.
Introductory material to scattering theory, central potential and partial waves, Born approximation.
Matter EM radiation interaction quantu description of radiation.
Different probes and their interactions: neutrons, strong residual interaction and dipolar magnetic interaction. Electrons and their Coulomb interaction, muons and dipolar magnetic interaction.
EM radiation in different energy regions from electromagnetic waves of low frequency to the gamma-rays and their application to the physics of condensed matter. Quantum theory of radiation.
Bragg diffraction in crystals and inelastic scattering of x-ray from vibrational and electronic states. Compton scattering, electronic moment distribution and electronic kinetic energy. Mossbauer effect and nuclear elastic scattering of x-ray.
Bragg diffraction and inelastic phonon scattering of neutron. Dispersion curves in crystals and disordered systems. Neutron magnetic scattering, magnetization distribution and magnetic dynamics, spin waves.
Nuclear, electronic, muonic magnetic resonance.