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National Repository of Grey Literature 12 records found  previous11 - 12  jump to record: Search took 0.01 seconds. 
Low temperature scanning tunneling microscopy
 Sojka, Antonín ; Havlíček,, Marek (referee) ; Pavera, Michal (advisor)
The diploma thesis is divided into two main parts. The first part describes the production of chrome and cobalt tips for SP-STM with subsequent testing of chrome tips on the Fe-Ir system (111). Furthermore, the first results from the growth studies of niobium on iridium(111) are presented. In the second part is described in detail the experimental LT-STM microscope of the Faculty of Physical Engineering. The chapter deals with the development of the microscope and its testing on a HOPG sample under atmospheric and vacuum conditions. The chapter describes the biggest problems which were solved when the microscope was puting into operation state. The second part also introduces the design of a new vacuum transport system, which consists of a tip and sample transport pallet. At the end of the second part is described the testing of cooling systems for LT-STM and the design of their modifications.
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Assembling and testing of low temperature STM microscope
 Sojka, Antonín ; Páleníček, Michal (referee) ; Pavera, Michal (advisor)
This bachelor thesis addresses the problem of assebling the low temperature STM working in ultrahigh vacuum. The thesis deals with connecting the microscope and electronics. The desing of temperature stabilizers for fixing the low temperatures is described along with a construction of expanding the vacuum chamber to test STM in low temperatures. The thesis describes the construction of sample and tip holders to insert samples and tips into the STM. At the end there are brief instructions to use GXSM software and testing the microscope in atmospheric pressure.
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National Repository of Grey Literature : 12 records found   previous11 - 12  jump to record:
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