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Last update: G_F (12.10.2001)
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Last update: doc. RNDr. Jiří Pavlů, Ph.D. (14.06.2019)
Podmínkou zakončení předmětu je úspěšné složení zkoušky. |
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Last update: doc. RNDr. Štěpán Roučka, Ph.D. (23.11.2022)
1. Andrew Zangwil: Physics at Surfaces, Cambridge University Press, Cambridge, 1996 2. Peter Y. Yu, Manuel Cardona: Fundamentals of Semiconductors, Springer-Verlag, Berlin, 1999, kap. 2 (Electronic Band Structures) 3. Hans Lueth: Surfaces and Interfaces of Solid Materials, Springer-Verlag, Berlin, 1996 4. Michael A. Van Hove, W. H. Weinberg, C.M. Chan: Low-Energy Electron Diffraction: Experiment, Theory and Surface Structure Determination, Springer Series in Surface Sciences, Vol 6, Springer, Berlin, 1986 5. Stefan Huefner: Photoelectron Spectroscopy, Springer-Verlag, Berlin, 1995 |
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Last update: doc. RNDr. Jiří Pavlů, Ph.D. (14.06.2019)
Zkouška je ústní a student dostává otázky dle sylabu předmětu v rozsahu, který byl prezentován na přednáškách. |
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Last update: T_KEVF (23.05.2008)
Basic ideas of theoretical description, surface geometry, principles, possibilities and limits of LEED technique, examples of reconstruction and relaxation of semiconductor and metal surfaces. From simple models to first principles calculations of electron structure, surface states, bands, redistribution of charge. Basic concepts, advantages and disadvantages of various approaches for solution of motion equations. Adsorption of individual atoms Chemisorption on metal surface, hybridization of states, comparison of classical ideas with results of calculation for various types of atoms, energy balance, ab initio calculations of energy barriers for elementary diffusion processes. Adsorption of molecules CO molecule on transition metal surface, classical ideas (HOMO, LUMO) and results of calculations based on density functional approximation (DFA). Basic ideas for description of co-adsorption, chemical reactions on metal surface. Example: dissociation of a simple molecule on metal surface. Layer of atoms adsorbed on surface Work function, ionization and screening, surface band structure, photoemission intensity profiles - densities of states, calculation of intensity, electron structure mapping, photoemission in ultraviolet and X-ray bands, examples STM Why is the interpretation of STM images difficult? What can be seen in STM? Standard schema for interpretation: Tersoff - Hamann and Bardeen approximations, transport formulation of tunneling process. STM at semiconductor and metal surfaces - clean and covered by adsorbate. Theoretical calculation and experiment. Examples. |