{"id":{"repo_id":"texas-state","oai_identifier":"oai:digital.library.txst.edu:10877/23556"},"canonical_url":"https://search.dev.ndltd.org/etd/texas-state/oai:digital.library.txst.edu:10877/23556","repository":{"repo_id":"texas-state","name":"Texas State University","base_url":"https://digital.library.txst.edu/server/oai/request"},"display":{"title":"Design and Construction of a Scanning Tunneling Microscope","abstract":"My research includes the design and construction of a Scanning Tunneling Microscope (STM). The purpose of this microscope is to study the surface structure of materials. The design phase will include making drawings to allow the specialized parts to be machined and acquiring the other materials needed to assemble the mechanical components of the STM. Other components include RHK Technologies STM-100 electronics, an IBM compatible PC and a data acquisition card. An electronic switch box, the piezoelectric tubes, a Faraday cage, and a vibration isolation apparatus will be designed and constructed as a part of this project. The RHK STM electronics will provide the necessary voltages that are applied to the piezoelectric tubes and monitor the tip sample tunneling current. The piezoelectric tubes are used in the positioning of the tip. The RHK electronics are interfaced to an IBM-compatible PC with the use of a data acquisition card. The computer is used to generate different signals, acquire the tunneling currents, and analyze the results. In addition to this STM, I will incorporate the necessary modifications to the RHK STM-100 electronics to adapt to another type of STM that was previously used in Ultra High Vacuum.","abstract_html":"My research includes the design and construction of a Scanning Tunneling Microscope (STM). The purpose of this microscope is to study the surface structure of materials. The design phase will include making drawings to allow the specialized parts to be machined and acquiring the other materials needed to assemble the mechanical components of the STM. Other components include RHK Technologies STM-100 electronics, an IBM compatible PC and a data acquisition card. An electronic switch box, the piezoelectric tubes, a Faraday cage, and a vibration isolation apparatus will be designed and constructed as a part of this project. The RHK STM electronics will provide the necessary voltages that are applied to the piezoelectric tubes and monitor the tip sample tunneling current. The piezoelectric tubes are used in the positioning of the tip. The RHK electronics are interfaced to an IBM-compatible PC with the use of a data acquisition card. The computer is used to generate different signals, acquire the tunneling currents, and analyze the results. In addition to this STM, I will incorporate the necessary modifications to the RHK STM-100 electronics to adapt to another type of STM that was previously used in Ultra High Vacuum.","abstract_has_math":false,"creators":["Wittry, N. Eric"],"institution":"Southwest Texas State University","degree_name":"Master of Science","degree_level":"Masters","degree_discipline":"Physics","degree_department":null,"school":null,"contributors":[],"advisors":["Galloway, Heather C."],"committee_chairs":[],"committee_members":["Michalk, Victor E.","Crawford, James R."],"year":1998,"date_issued":"1998-05","date_published":"1998-05","updated_at":"2026-07-27T21:22:45Z","subjects":["microscopes","scanning tunneling microscopy","surfaces"],"languages":["en"],"rights":[],"rights_urls":[],"identifier_entries":[]},"links":{"outbound_url":"https://hdl.handle.net/10877/23556","outbound_label":"Handle","outbound_source":"dc:identifier.uri"},"metadata_groups":[{"id":"people","label":"People","entries":[{"key":"dc:contributor.advisor","label":"Advisor","values":["Galloway, Heather C."]},{"key":"dc:contributor.committeemember","label":"Committee Member","values":["Michalk, Victor E.","Crawford, James R."]},{"key":"dc:creator","label":"Author","values":["Wittry, N. Eric"]}]},{"id":"academic_context","label":"Academic Context","entries":[{"key":"dc:date.accessioned","label":"Dc Date Accessioned","values":["2025-12-17T18:13:14Z"]},{"key":"dc:date.issued","label":"Date","values":["1998-05"]},{"key":"dc:type","label":"Dc Type","values":["Thesis"]},{"key":"thesis:degree_discipline","label":"Discipline","values":["Physics"]},{"key":"thesis:degree_level","label":"Degree Level","values":["Masters"]},{"key":"thesis:degree_name","label":"Degree Name","values":["Master of Science"]},{"key":"thesis:institution_name","label":"Thesis Institution Name","values":["Southwest Texas State University"]}]},{"id":"subjects_keywords","label":"Subjects and Keywords","entries":[{"key":"dc:subject","label":"Dc Subject","values":["microscopes","scanning tunneling microscopy","surfaces"]}]},{"id":"language_rights","label":"Language and Rights","entries":[{"key":"dc:language.iso","label":"Language (ISO)","values":["en"]}]},{"id":"identifiers","label":"Identifiers","entries":[{"key":"dc:identifier.uri","label":"Identifier URI","values":["https://hdl.handle.net/10877/23556"]}]},{"id":"additional","label":"Additional Metadata","entries":[{"key":"dc:description.abstract","label":"Abstract","values":["My research includes the design and construction of a Scanning Tunneling Microscope (STM). The purpose of this microscope is to study the surface structure of materials. The design phase will include making drawings to allow the specialized parts to be machined and acquiring the other materials needed to assemble the mechanical components of the STM. Other components include RHK Technologies STM-100 electronics, an IBM compatible PC and a data acquisition card. An electronic switch box, the piezoelectric tubes, a Faraday cage, and a vibration isolation apparatus will be designed and constructed as a part of this project. The RHK STM electronics will provide the necessary voltages that are applied to the piezoelectric tubes and monitor the tip sample tunneling current. The piezoelectric tubes are used in the positioning of the tip. The RHK electronics are interfaced to an IBM-compatible PC with the use of a data acquisition card. The computer is used to generate different signals, acquire the tunneling currents, and analyze the results. In addition to this STM, I will incorporate the necessary modifications to the RHK STM-100 electronics to adapt to another type of STM that was previously used in Ultra High Vacuum."]},{"key":"dc:format","label":"Dc Format","values":["Text"]},{"key":"dc:format.medium","label":"Dc Format Medium","values":["1 file (.pdf)"]},{"key":"dc:title","label":"Title","values":["Design and Construction of a Scanning Tunneling Microscope"]}]}],"canonical_facts":{"dc:contributor.advisor":["Galloway, Heather C."],"dc:contributor.committeemember":["Michalk, Victor E.","Crawford, James R."],"dc:creator":["Wittry, N. Eric"],"dc:date.accessioned":["2025-12-17T18:13:14Z"],"dc:date.issued":["1998-05"],"dc:description.abstract":["My research includes the design and construction of a Scanning Tunneling Microscope (STM). The purpose of this microscope is to study the surface structure of materials. The design phase will include making drawings to allow the specialized parts to be machined and acquiring the other materials needed to assemble the mechanical components of the STM. Other components include RHK Technologies STM-100 electronics, an IBM compatible PC and a data acquisition card. An electronic switch box, the piezoelectric tubes, a Faraday cage, and a vibration isolation apparatus will be designed and constructed as a part of this project. The RHK STM electronics will provide the necessary voltages that are applied to the piezoelectric tubes and monitor the tip sample tunneling current. The piezoelectric tubes are used in the positioning of the tip. The RHK electronics are interfaced to an IBM-compatible PC with the use of a data acquisition card. The computer is used to generate different signals, acquire the tunneling currents, and analyze the results. In addition to this STM, I will incorporate the necessary modifications to the RHK STM-100 electronics to adapt to another type of STM that was previously used in Ultra High Vacuum."],"dc:format":["Text"],"dc:format.medium":["1 file (.pdf)"],"dc:identifier.uri":["https://hdl.handle.net/10877/23556"],"dc:language.iso":["en"],"dc:subject":["microscopes","scanning tunneling microscopy","surfaces"],"dc:title":["Design and Construction of a Scanning Tunneling Microscope"],"dc:type":["Thesis"],"thesis:degree_discipline":["Physics"],"thesis:degree_level":["Masters"],"thesis:degree_name":["Master of Science"],"thesis:institution_name":["Southwest Texas State University"]},"updated_at":"2026-07-27T21:22:45Z"}