| Code: | F K05 |
| Department: | Department of Experimental Physics |
| Course director: | Margit Koós. István Pócsik |
| Credits: | 2 |
| Semester: | not fixed |
| Hours/week: | 2+0 |
| Prerequisities: | Electricity and Magnetism |
| Type of assessment: | B |
Course description:
Introduction, idea, definitions
Preparation methods
Melt quenching, thermal evaporation, sputtering, glow-discharge decomposition, chemical vapour deposition, gel desiccation, electrolytic deposition, reaction amorphization,
Glassy state
The glass transition, theories for the glass transition (Second order phase transition, entropy, dynamical theories, relaxation processes, free volume)
Factors that determenine the glass transition temperature
Glass-forming systems and ease of glass formation (structure and topology, eutectic compositions, crystalline polymorphs, constraint theory, electronic structure).
Microscopic Structure
Experimental Techniques (definitions, diffraction, X-ray absorption spectroscopy, magnetic resonance, Mössbauer spectroscopy, vibrational spectroscopy).
Short-range order
Medium-range order (MRO of different length scale and experimental probes of MRO).
Structural modelling (dense random packing of spheres, continuous random networks,other structurel models, Monte-Carlo simulations, molecular dynamical simulations).
Macroscopic structure
Experimental techniques (light, electron and tunnel microscopy, small-angle scattering).
Examples of macroscopic structure (defects in growth morphology, phase separation ).
Vibrational excitations
Computational methods (analytic methods and numerical methods).
Experimental probes (infra-red and Raman spectroscopy, inelastic neutron scattering, extended X-ray absorption fine structure).
Low frequency modes and low temperature properties (specific heat, thermal conductivity, inelastic neutron scattering, two-level system, fractons).
Electrons
Electronic density of states (Theoretical calculations, experimental determination).
Localization (effects of disorder, one dimension, two and three dimensions, minimum metallic conductivity and the mobility edge, percolation).
Transport properties (d.c. electrical conductivity, thermopower, Hall effect, frequency dependent conductivity).
Optical properties (intraband absorption, interband absorption, luminescence).
Recommended Texts:
Table of Courses |