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The design and development of a scanning tunneling microscope and its use for studying oxygen adsorption on vicinal copper surfaces
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Lloyd, Grongar Wynne Woodliffe (1992) The design and development of a scanning tunneling microscope and its use for studying oxygen adsorption on vicinal copper surfaces. PhD thesis, University of Warwick.
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Official URL: http://webcat.warwick.ac.uk/record=b1415240~S15
Abstract
A scanning tunneling microscope has been designed and built in the Department of Physics at the University of Warwick which is capable of atomic resolution on metals.
A number of problems associated with the design and manufacture of a Scanning Tunneling Microscope (STM) had to be overcome. The design of an ultra high vaccum chamber and its associated power, gas and water supplies. The removal of vibrations from the vacuum system. The coarse and fine tip approach that enabled the tunneling regime to be entered without tip crash. The design and construction of a novel sample transfer mechanism that enabled electrical connections to be engaged and disengaged automatically when placing the sample into the STM.
A program of testing, development and calibration, firstly in air and then under vacuum, proved the atomic resolution of the instrument.
Oxygen induced faceting of vicinal copper surfaces was imaged with atomic resolution. A new model for the reconstruction of the Cu(410) terraces is proposed.
| Item Type: | Thesis (PhD) | ||||
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| Subjects: | Q Science > QC Physics Q Science > QD Chemistry Q Science > QH Natural history |
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| Library of Congress Subject Headings (LCSH): | Scanning tunneling microscopy, Microscopes -- Design and construction, Adsorption, Oxygen, Copper -- Surfaces | ||||
| Official Date: | November 1992 | ||||
| Dates: |
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| Institution: | University of Warwick | ||||
| Theses Department: | Department of Physics | ||||
| Thesis Type: | PhD | ||||
| Publication Status: | Unpublished | ||||
| Supervisor(s)/Advisor: | Woodruff, D. P. | ||||
| Sponsors: | Science and Engineering Research Council (Great Britain) | ||||
| Extent: | 172 leaves : illustrations | ||||
| Language: | eng |
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