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Title: The design and development of a scanning tunneling microscope and its use for studying oxygen adsorption on vicinal copper surfaces
Author: Lloyd, Grongar Wynne Woodliffe
ISNI:       0000 0001 3611 6580
Awarding Body: University of Warwick
Current Institution: University of Warwick
Date of Award: 1992
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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.
Supervisor: Not available Sponsor: Science and Engineering Research Council
Qualification Name: Thesis (Ph.D.) Qualification Level: Doctoral
EThOS ID:  DOI: Not available
Keywords: QC Physics ; QD Chemistry ; QH Natural history