Low dimensionality materials
Low-dimensionality materials are advanced materials with at least one dimension lying in the nanoscale level. They are classified in three main categories: multilayered structures, nanodots and nanoparticles. First, the module introduces students to the fundamentals of materials physics, magnetism and nanotechnology. The second part explains the growth and characterization techniques applied in the low-dimensional materials. […]
Optical properties, optical materials, optical spectroscopy
Categories and applications of optical materials. Classical view of light and matter interaction: Complex dielectric function and optical parameters of semiconductors, metals, amorphous and molecular materials. Lorentz forced oscillator, Lorentz/Drude, Maxwell’s equations in matter (dispersion relation, existence of longitudinal waves). Boundary conditions (Fresnel equations). Semiclassical dielectric function theory: Energy bands, quantum mechanical view of dielectric […]
Electrical Properties of Polycrystalline Semiconductors and Insulating Layers – Devices in New Technologies
The purpose of the course is to understand the conduction mechanisms in some basic technology materials and their application in modern optoelectronic and micro-nanoelectronic devices. Specifically, the following are presented (a) The conductivity of a special class of semiconductors, the polycrystalline semiconductors, which are of great technological interest. Particular importance is given to the effect […]
Electron Microscopy and X-ray Diffraction for Materials’ Science
This course provides a comprehensive insight into the structural characterization of materials using X-ray diffraction, an effective non-destructive method, and advanced transmission electron microscopy (TEM), a destructive but the most powerful technique, giving access to structural and chemical information from the micrometer to the sub-angstrom scale. We will start with the crystalline and amorphous states […]
Magnetic properties of materials and technological applications
Theory Course: Study of the magnetic properties of matter and their connection with technological applications Description of basic magnetic quantities and units Description and interpretation of the phenomena of diamagnetism and paramagnetism Introduction to magnetization models of the energy bands of micromagnetism Description and interpretation of the phenomena of ferromagnetism and superparamagnetism Description of magnetic […]
Nanostructures, Heterostructures and Elastoplastic behavior
The concepts of stress and strain, shear, 3D descriptions. Moduli of elastic behavior, energy of elastic deformation, thermal expansion, principal stresses/strains, inhomogeneous stress state, compatibility of strains. Stress-strain relation, anisotropic elastic behavior, generalized Hooke’s law. Plane stress and strain states. Plastic deformation, fracture, creep, fatigue, hardness. Experimental determination of mechanical properties. Elements of crystal structure […]
Computational Methods and Simulations of Functional Materials
The course offers an introduction and thorough deepening in computational methods in Materials Physics and Technology. The course will analyze the available computational methods at the atomic scale, at the mesoscopic level as well as at the macroscopic scale. We will first analyze the calculations of first principles-ab initio (Hartree (H), Hartree Fock (HF), Density functional […]