Search for dissertations about: "YBCO"
Showing result 21 - 25 of 38 swedish dissertations containing the word YBCO.
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21. Sub-micron Structures in Laser Ablated YBa2Cu3O7-x Thin Films
Abstract : This thesis treats the epitaxial growth of high-Tc superconductors and other perovskite oxides as well as the patterning of these into sub-micron structures for superconducting electronic devices. A computer controlled laser ablation system, based on a KrF excimer laser (248 nm) to induce ablation, was developed to allow complex thin film growth processes. READ MORE
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22. Grain Boundary Structure of YBa2Cu3O7-δ High Tc Superconductors
Abstract : The microstructures of YBa2Cu3O7-.delta. (YBCO) high Tc superconducting materials have been studied using analytical electron microscopy. The effects of processing parameters on the interfacial microstructures have been investigated in both bulk materials and thin films. READ MORE
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23. Josephson Junctions: Oscillators and Broadband Spectrometers at Frequencies up to 1 THz
Abstract : This thesis is devoted to some selected applications of the Josephson junction oscillator. The initial work was performed using low-Tc Nb/PbBi tunnel junctions, while the later parts were done using the recently developed high-Tc YBa2Cu3O7 (YBCO) Josephson junctions. READ MORE
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24. Key Components for High Tc SQUID Magnetometers
Abstract : This thesis describes the development of key components for superconducting quantum interference device (SQUID) magnetometers in the high temperature superconductor YBa2Cu3O7 (YBCO). Such magnetometers are made for liquid nitrogen temperature operation, as opposed to low Tc devices that are confined to liquid helium. READ MORE
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25. Step Edge Junctions in YBa2Cu3O7-δ High-Tc Superconductors
Abstract : This thesis describes experimental work on GdBa2Cu3O7-.delta. (GBCO) thin films, YBa2Cu3O7-.delta. READ MORE