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Fabrication of high-temperature superconducting nanobridges using atomic force microscopy
Thesis (MEng (Electrical and Electronic Engineering))--University of Stellenbosch, 2006.
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| Format: | Thesis |
| Language: | English |
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Stellenbosch : University of Stellenbosch
2008
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| _version_ | 1867613907508527104 |
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| access_status_str | Open Access |
| author | Elkaseh, Akram Abdulsalam |
| author2 | Perold, W. J. |
| author_browse | Elkaseh, Akram Abdulsalam Perold, W. J. |
| author_facet | Perold, W. J. Elkaseh, Akram Abdulsalam |
| author_sort | Elkaseh, Akram Abdulsalam |
| collection | Thesis |
| dc_rights_str_mv | University of Stellenbosch |
| description | Thesis (MEng (Electrical and Electronic Engineering))--University of Stellenbosch, 2006. |
| format | Thesis |
| id | oai:scholar.sun.ac.za:10019.1/3324 |
| institution | Stellenbosch University (South Africa) |
| language | English |
| last_indexed | 2026-06-10T12:43:36.390Z |
| license_str | Other — see source repository |
| provenance_str_mv | Harvested via OAI-PMH from SUNScholar — Stellenbosch University Repository |
| publishDate | 2008 |
| publishDateRange | 2008 |
| publishDateSort | 2008 |
| publisher | Stellenbosch : University of Stellenbosch |
| publisherStr | Stellenbosch : University of Stellenbosch |
| record_format | dspace |
| source_str | SUNScholar — Stellenbosch University Repository |
| spelling | oai:scholar.sun.ac.za:10019.1/3324 Fabrication of high-temperature superconducting nanobridges using atomic force microscopy Elkaseh, Akram Abdulsalam Perold, W. J. Meincken, M. University of Stellenbosch. Faculty of Engineering. Dept. of Electrical and Electronic Engineering. Atomic force microscopy Superconductivity Josephson effect Pulsed laser deposition Dissertations -- Electronic engineering Theses -- Electronic engineering Thesis (MEng (Electrical and Electronic Engineering))--University of Stellenbosch, 2006. The Josephson effect of high-temperature superconducting nanobridge structures is studied worldwide. Until now, nanobridges are generally fabricated with focused ion beam milling on planar thin films. These nanobridges are employed as weak links in superconducting quantum interference devices (SQUIDs) and used in superconducting flux flow transistors and devices. This project had two main objectives: to improve the sidewall angle of photoresist lines, with the aid of atomic force microscopy (AFM) nanolithography; and to fabricate hightemperature Josephson junctions by constricting superconductive YBCO lines on MgO substrates with AFM nanolithography. The entire fabrication process is explained including photolithography, deposition of the YBCO thin films with pulsed laser deposition (PLD), nanolithography and wet etching. Although the testing of the junctions did not show any Josephson behaviour, it could be demonstrated that nanobridge structures can successfully be created by AFM nanolithography. The entire fabrication process has been demonstrated in detail for the benefit of future research. 2008-07-08T13:05:50Z 2010-07-09T11:07:47Z 2008-07-08T13:05:50Z 2010-07-09T11:07:47Z 2006-12 Thesis http://hdl.handle.net/10019.1/3324 en University of Stellenbosch application/pdf Stellenbosch : University of Stellenbosch |
| spellingShingle | Atomic force microscopy Superconductivity Josephson effect Pulsed laser deposition Dissertations -- Electronic engineering Theses -- Electronic engineering Elkaseh, Akram Abdulsalam Fabrication of high-temperature superconducting nanobridges using atomic force microscopy |
| title | Fabrication of high-temperature superconducting nanobridges using atomic force microscopy |
| title_full | Fabrication of high-temperature superconducting nanobridges using atomic force microscopy |
| title_fullStr | Fabrication of high-temperature superconducting nanobridges using atomic force microscopy |
| title_full_unstemmed | Fabrication of high-temperature superconducting nanobridges using atomic force microscopy |
| title_short | Fabrication of high-temperature superconducting nanobridges using atomic force microscopy |
| title_sort | fabrication of high temperature superconducting nanobridges using atomic force microscopy |
| topic | Atomic force microscopy Superconductivity Josephson effect Pulsed laser deposition Dissertations -- Electronic engineering Theses -- Electronic engineering |
| url | http://hdl.handle.net/10019.1/3324 |
| work_keys_str_mv | AT elkasehakramabdulsalam fabricationofhightemperaturesuperconductingnanobridgesusingatomicforcemicroscopy |