Browsing Dipartimento di Fisica - Tesi di Dottorato by Issue Date
Now showing items 21-40 of 192
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Investigation of dimensionality e ects on capacitorless memory and trench power MOSFET
(2011-12-19)This thesis has dealt with two di erent problems solved with electronic device simulations (TCAD). The rst relates to the Trench power MOSFET device characterization, with particular attention to device breakdown ... -
Critical properties of 2D Z(N) vector models for N > 4
(2011-12-19) -
Three-Dimensional Hybrid Code for Earth's Magnetotail Dymamics
(2012-11-08)This work is dedicated to the development and exploitation of a new threedimensional (3D) particle code for equilibrium plasma con gurations. The code is of the so-called hybrid type, that is ions are treated as particles ... -
Properties of entanglement in a Spin Chain with impurities
(2012-11-09)In this thesis we have studied the e®ects on ground-state entanglement and quantum-state transfer caused by the presence of one and two diagonal impu- rities in a 1D ring-shaped spin-1 2 hamiltonian with XX ferromagnetic ... -
Diffusion and implantation of dopants in single-wall carbon nanotubes:a spectroscopic investigation of chemical and electronic properties
(2012-11-09)Raman measurements, performed on MWCNTs grown by arc discharge method in He atmosphere, have pointed out the occurrence of a band at 1780- 1860 cm–1, regardless of the use of a catalytic Ni-Cr alloy in the synthesis ... -
Dielectric characterization of different mesogenic substances and a mixture with non-conventional gold nanoparticles
(2012-11-28)The study of liquid-crystalline matter and nano-structured materials is an important and vast field of research with potential implications in the development of new technologies, like sensors and displays. In this work ... -
Forward jets at LHC in pQCD
(2012-11-29) -
Optical systems for diagnostics: Near-Infrared Imaging technique for detection of dental demineralisation
(2012-11-30)In dentistry, a correct detection of caries severity is still a challenging descision-making task that crucially a ects the choice for the best treatment plan. The challenge is to nd both the most objective parameters ... -
Optical trapping and manipulation exploiting liquid crystalline systems
(2012-11-30)This thesis and all the research contained within, pretends to develop new ideas and concepts on liquid crystals (LC) and optical trapping and manipulation. The combination between optical tweezers and LC systems promises ...