Search results for "Josephson junctions"

showing 3 items of 13 documents

Fabrication, Electrical Characterization and 1/f Noise Study of Submicron-sized Superconducting Tunnel Junctions

2016

kylmäfysiikkalämpökäsittelynoiseJosephson junctionsnegative absolute resistancesuprajohtavuus1/f noisemangaanisähkönjohtavuussuprajohteettunnel junctionssuperconductorniobium-based superconducting devicesnanorakenteetcryogenicslow temperature physicsnanofabricationannealingNIS/SIS tunnelingalumiinikohinaniobiumsupercurrent
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CONTROLLING THE QUANTUM DYNAMICS OF MULTIPARTITE JOSEPHSON CIRCUITS

2011

CONTROLLING THE QUANTUM DYNAMICS OF MULTIPARTITE JOSEPHSON CIRCUITS

quantum information josephson junctions entanglement master equationSettore FIS/03 - Fisica Della Materia
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Development of niobium-based superconducting junctions

2012

This thesis presents a review of publications which mainly focuses on the fabrication and performance of Nb-based normal metal-insulator-superconductor (NIS) tunnel junctions and superconductor-normal metal-superconductor (SNS) Josephson junctions at low temperatures. The Cu/AlOx-Al/Nb based NIS double tunnel junctions were successfully fabricated using conventional electron beam lithography combined with multi-angle thermal evaporation of metals in ultra high vacuum. The subgap characteristics of these junctions showed expected temperature dependence from 0.2 K to 5 K with a good thermometry sensitivity 0.2-0.3 mV/K. Signatures of small electronic cooling effects were observed near the Nb …

suprajohtavuusnanofysiikkaSuperconductingThin filmsSuperconducting device fabricationSNS Josephson junctionsmateriaalifysiikkaPulsed laser depositioNanophysicsMaterial physicsNIS tunnel junctionsnanotieteet
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