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Visar resultat 1 - 5 av 7 avhandlingar som matchar ovanstående sökkriterier.
1. Experimental Studies of Charge Transport in Single Crystal Diamond Devices
Sammanfattning : Diamond is a promising material for high-power, high-frequency and high- temperature electronics applications, where its outstanding physical properties can be fully exploited. It exhibits an extremely high bandgap, very high carrier mobilities, high breakdown field strength, and the highest thermal conductivity of any wide bandgap material. LÄS MER
2. High pressure structural investigations using single crystal techniques : influence of pressure on Jahn-Teller distorted alkali manganese fluorides
Sammanfattning : The results from high-pressure single-crystal X-ray diffraction studies of some ternary sodium transition metal fluorides are presented. The structures of NaMnF4, Na2MnF5, Na3MnF6 and Na3ScF6 have been investigated at high pressures, and in connection with these studies the Na5Mn3F14 structure has been investigated at ambient pressure. LÄS MER
3. Microstructure technology in silicon, quartz, and diamond
Sammanfattning : Microstructure technology can be defined as a set of fabrication processes enabling three-dimensional structures featuring dimensions in the micrometer to millimetre range, with micrometer accuracy. Microstructures can be assembled or manufactured integrated with other structures and/or microelectronics forming complex microsystems. LÄS MER
4. Hg Cuprate Superconductors Technological and Conceptual Tools
Sammanfattning : This work concerns superconductivity in the cuprates. It touches some of the problems that this field displays. As a representing case, the Hg based cuprates are chosen. LÄS MER
5. Charge and Spin Transport in Parallel-Coupled Quantum Dots in Nanowires
Sammanfattning : This thesis explores crystal-phase engineering of nanowires to fabricate advanced quantum structures for charge and spin transport studies. Quantum dots formed by crystal-phase tuning during epitaxial growth of InAs nanowires were used as a starting point to realize and electrically characterize two different types of parallel-coupled quantum dots; electron-hole quantum dots and electron-electron quantum dots. LÄS MER