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SZZAX


Course: Applied physics

Department/Abbreviation: SLO/SZZAX

Year: 2020

Guarantee: 'doc. RNDr. Ondřej Haderka, Ph.D.', 'prof. RNDr. Miroslav Hrabovský, DrSc.', 'prof. RNDr. Miroslav Mašláň, CSc.', 'prof. RNDr. Jan Peřina, Ph.D.'

Annotation: Final exam for verification and evaluation of the level of knowledge.

Course review:
" Spatial configuration of a crystal, crystal lattice, primitive cell. Crystal diffraction, reciprocal lattice, Bragg diffraction law, Brillouin zone. Crystal bonding, ionic crystals, covalent crystals, metals, crystals of inert gases. Lattice vibrations, acoustical, optical phonons, dispersion relations, thermal properties. " Metals, Fermi gas of free electrons, thermal and electrical properties. Energy bands, Bloch theorem, Bloch functions, central equation. Semiconductors, dispersion relations of real materials (Si, Ge, GaAs). Fermi surfaces in metals, nearly free electron approximation, tight binding method. " Quasiparticles, plasmons, polaritons, excitons. Superconductivity, electric and magnetic properties. " X-ray powder diffraction, electron and neutron diffraction. Basic principles (Bragg law), instrumentation and sample preparation for X-ray powder diffraction, specifics of measurement of nanocrystalline materials, measurement of particle size by low angle scattering of X-ray irradiation (SAXS). X-ray fluorescence spectroscopy (XRF): basic principles (Moseley law, Reyleigh and Compton scattering, saturation depth and secondary fluorescence), instrumentation and sample preparation, construction models of XRF spectrometers, electron microanalysis. Photoelectron spectroscopy (UPS, XPS/ESCA), spectroscopy of Auger electrons, X-ray absorption spectroscopy (XAS - EXAFS, XANES). " Mössbauer spectroscopy. Mössbauer effect, interpretation of spectra. Conversion electron Mössbauer spectroscopy (CEMS) and conversion X-ray Mössbauer spectroscopy (CXMS), low temperature Mössbauer spectroscopy and spectroscopy under external magnetic field. Magnetometry measurements. Magnetometer based on superconducting quantum interference phenomenon (SQUID): basic principles, instrumentation and samples preparation, parameters of hysteresis loop, magnetic properties of matter - specifics in case of nanomaterials. Vibrational magnetometer (VSM). Nuclear magnetic resonance (NMR). Nuclear magnetic moment. Magnetic moment in magnetic field: classical approach, quantum approach. Free precession. Spin and stimulated echo. CW and pulse spectrometers. NMR spectra. Application of NMR for study of structure of solid matter. Magnetic resonance imaging (MRI), contrast agents (SPIO). " Thermal analysis. Thermogravimetric analysis, differential thermal analysis, differential scanning calorimetry; basic principles, instrumentation and sample preparation, measured parameters. Analysis of evolved gases (mass spectroscopy, infrared spectroscopy). Measurement of specific surface area of porous and powder materials by the BET method. Basic principles, instrumentation and samples preparation for the measurement of specific surface area, Langmuir isotherm, analysis of porous materials, physisorption, chemisorption, temperature programmable oxidation/reduction. " Dynamic light scattering. Basic principles of the light scattering, instrumentation and samples preparation for the measurement of particle size by the dynamic light scattering, evaluation of results. Stoke's law. Zeta potential and its dependence on pH, electrokinetic phenomena, isoelectric point, electric bilayer. Vibrational spectroscopy. Introduction, basics of vibrational spectroscopies. Infrared and Raman spectroscopy - basics, instrumentation, and surface enhanced Raman scattering (SERS), UV-Vis absorption spectroscopy and luminescence.