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Dissertations / Theses on the topic 'Scanning Tunneling'

Author: Grafiati

Published: 4 June 2021

Last updated: 14 February 2022

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1

Kulawik, Maria. "Low temperature scanning tunneling microscopy." Doctoral thesis, [S.l.] : [s.n.], 2006. http://deposit.ddb.de/cgi-bin/dokserv?idn=979718848.

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2

Ding, Haifeng. "Spin-polarized scanning tunneling microscopy." [S.l. : s.n.], 2001. http://deposit.ddb.de/cgi-bin/dokserv?idn=963217186.

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3

Venkatachalam, Vivek. "Simulating scanning tunneling microscope measurements." Thesis, Massachusetts Institute of Technology, 2006. http://hdl.handle.net/1721.1/36116.

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Thesis (S.B.)--Massachusetts Institute of Technology, Dept. of Physics, 2006.<br>Includes bibliographical references (leaf 25).<br>One of the largest problems in scanning tunneling microscopy design is noise control. It is the burden of the designer to determine if money should be used to build a floating room for vibration isolation or for top-of-the-line preamplifiers that can be placed at low temperatures. This thesis presents a simulation of the STM measurement chain, from tunneling tip to computer control. The goal is to see how noise at different stages of the measurement chain affect th

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4

Yee, Shannon. "Design of a scanning tunneling microscope." Connect to resource, 2007. http://hdl.handle.net/1811/25190.

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Thesis (Honors)--Ohio State University, 2007.<br>Title from first page of PDF file. Document formatted into pages: contains 110 p.; also includes graphics. Includes bibliographical references (p. 108-110). Available online via Ohio State University's Knowledge Bank.

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5

Heben, Michael J. Lewis Nathan Saul Lewis Nathan Saul. "Scanning tunneling microscopy in electrochemical environments /." Diss., Pasadena, Calif. : California Institute of Technology, 1990. http://resolver.caltech.edu/CaltechETD:etd-06122007-104233.

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6

Gustafsson, Alexander. "Theoretical modeling of scanning tunneling microscopy." Doctoral thesis, Linnéuniversitetet, Institutionen för fysik och elektroteknik (IFE), 2017. http://urn.kb.se/resolve?urn=urn:nbn:se:lnu:diva-69012.

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The main body of this thesis describes how to calculate scanning tunneling microscopy (STM) images from first-principles methods. The theory is based on localized orbital density functional theory (DFT), whose limitations for large-vacuum STM models are resolved by propagating localized-basis wave functions close to the surface into the vacuum region in real space. A finite difference approximation is used to define the vacuum Hamiltonian, from which accurate vacuum wave functions are calculated using equations based on standard single-particle Green’s function techniques, and ultimately used

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7

Blackham, Ian George. "Scanning tunneling microscopy of electrode surfaces." Thesis, University of Oxford, 1992. https://ora.ox.ac.uk/objects/uuid:f9d27595-1177-406f-89a2-1448ac654dd3.

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A scanning tunneling microscope (STM) suitable for the in-situ study of electrode surfaces under electrochemical control has been developed. The system consists of commercially available software and feedback electronics, with a custom-built stage and electrochemical control. The stage incorporates an automatic coarse approach mechanism for ease of operation. Gold single crystal spheres (SCS) and gold on mica thin films have been studied as surfaces potentially suitable for samples in in-situ electrochemical STM experiments. Characteristic features of each surface have been identified. High re

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8

Gallagher, Mark Joseph. "Optical interactions with the scanning tunneling microscope." Diss., The University of Arizona, 1993. http://hdl.handle.net/10150/186450.

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This work investigates optical interactions with scanning tunneling microscopy with the intention of better understanding how light affects the output of the STM for different samples as well as how light can be emitted from the STM, possibly providing additional information about the surfaces examined. In Chapter 1, a variety of topographical, electronic and even magnetic surface maps, which were produced by STM, are presented to demonstrate the capabilities of state-of-the-art probe microscopy techniques. These images represent the results from a variety of materials investigations. The seco

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9

Henson, Tammy Deanne 1964. "Scanning tunneling microscopy of layered structure semiconductors." Thesis, The University of Arizona, 1988. http://hdl.handle.net/10150/276807.

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Semiconductors are characterized by atomic resolution imaging and density of states measurements (DOS) obtained through the use of a scanning tunneling microscope (STM). The DOS of the conduction and valence bands can be measured separately with a STM as opposed to an optical measurement which measures only the joint DOS. Layered-structure semiconductors are characterized both in the bulk form and in the isolated cluster form. Images of three bulk layered-structure semiconductors, MoS₂, WSe₂, and SnS₂, were obtained with both positive and negative sample-to-tip bias voltages. Curves of tunneli

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10

Tomic, Aleksandra T. "Scanning tunneling microscopy of complex electronic materials." Diss., Connect to online resource - MSU authorized users, 2008.

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Thesis (Ph.D.)--Michigan State University. Dept. of Physics and Astronomy, 2008.<br>Title from PDF t.p. (viewed on Mar. 27, 2009) Includes bibliographical references (p. 95-102). Also issued in print.

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11

Salazar, Enríquez Christian David. "Scanning tunneling microscopy on low dimensional systems." Doctoral thesis, Saechsische Landesbibliothek- Staats- und Universitaetsbibliothek Dresden, 2016. http://nbn-resolving.de/urn:nbn:de:bsz:14-qucosa-211572.

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This thesis contains experimental studies on low dimensional systems by means of scanning tunneling microscopy (STM). These studies include investigations on dinickel molecular complexes and experiments on iron nanostructures used for the implementation of the spin-polarized scanning tunneling microscopy technique at the IFW-Dresden. Additionally, this work provides detailed information of the experimental technique (STM), from the theoretical background to the STM-construction, which was part of this doctoral work. Molecular anchoring and electronic properties of macrocyclic magnetic complex

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12

Weeks, Brandon Lea. "Applications of high-pressure scanning tunneling microscopy." Thesis, University of Cambridge, 2000. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.621999.

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13

DiLullo, Andrew R. "Manipulative Scanning Tunneling Microscopy and Molecular Spintronics." Ohio University / OhioLINK, 2013. http://rave.ohiolink.edu/etdc/view?acc_num=ohiou1363821351.

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14

Kersell, Heath R. "Alternative Excitation Methods in Scanning Tunneling Microscopy." Ohio University / OhioLINK, 2015. http://rave.ohiolink.edu/etdc/view?acc_num=ohiou1449074449.

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15

Gambrel, Grady A. "Scanning Tunneling Microscopy of Two-Dimensional Materials." The Ohio State University, 2017. http://rave.ohiolink.edu/etdc/view?acc_num=osu149424786854182.

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16

Pinheiro, Lucidalva dos Santos. "Scanning probe microscopy of adsorbates." Thesis, University of Oxford, 1996. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.320589.

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17

Madden, Peter Geoffrey Alexander. "Construction of a digitally controlled scanning tunneling microscope." Thesis, McGill University, 1996. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=24066.

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The development of micro- and nano-scale robots for medical applications will require an understanding and intuition for nanoscale phenomena as well as a suite of new miniaturized technologies. The scanning tunneling microscope (STM), invented in 1980 by Gerd Binnig and Heinrich Rohrer at IBM, and related scanning probe microscopes such as the atomic force microscope are among the most advanced instruments yet built to explore our world at the nanometer and even subnanometer level. This thesis describes the construction of a computer controlled scanning tunneling microscope, the characterizati

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18

Kramar, John Adam Baldeschwieler John D. Baldeschwieler John D. "Scanning tunneling microscopy and spectroscopy of molybdenum disulphide /." Diss., Pasadena, Calif. : California Institute of Technology, 1990. http://resolver.caltech.edu/CaltechETD:etd-06132007-103520.

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19

Bredekamp, Adriaan Hendrik. "New feedback control for a scanning tunneling microscope." Thesis, Cape Technikon, 1999. http://hdl.handle.net/20.500.11838/1129.

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Thesis (MTech(Electrical Engineering))--Cape Technikon, Cape Town,1999<br>This thesis describes the design and implementation of a new feedback controller for a scanning tunneling microscope or STM. The previous controller had several shortcomings when it came to the data throughput rate of the data acquisition system, the scan rate, and the way the data was stored and displayed. The initial investigation was done to determine the most cost effective way to implement the data acquisition system. Various approaches such as DSP systems, analogue systems and microcontroller systems were loo

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20

Jarasch, Markus. "Interfacing a Computer to a Scanning Tunneling Microscope." PDXScholar, 1994. https://pdxscholar.library.pdx.edu/open_access_etds/5047.

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A program was written in 'C' to control the functions of an already existing Scanning Tunneling Microscope (STM). A DAS-1601 data acquisition card (from Keithley Data Acquisition) was installed together with its drivers for 'C' on a computer with a 486-DX motherboard. The computer was interfaced to the electronics of the STM. Images taken of HOPG (highly oriented pyrolitic graphite) were of a reasonable quality and showed atomic resolution.

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21

He, Yang. "Scanning Tunneling Microscopy Study on Strongly Correlated Materials." Thesis, Harvard University, 2015. http://nrs.harvard.edu/urn-3:HUL.InstRepos:26718719.

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Strongly correlated electrons and spin-orbit interaction have been the two major research directions of condensed matter physics in recent years. The discovery of high temperature superconductors in 1986 not only brought excitement into the field but also challenged our theory on quantum materials. After almost three decades of extensive study, the underlying mechanism of high temperature superconductivity is still not fully understood, the reason for which is mainly a poor understanding of strongly correlated systems. The phase diagram of cuprate superconductors has become more complicated t

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22

Burema, Shiri. "Inelastic Electron Tunneling Spectroscopy with the Scanning Tunneling Microscope : a combined theory-experiment approach." Thesis, Lyon, École normale supérieure, 2013. http://www.theses.fr/2013ENSL0821.

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La Spectroscopie par Effet Tunnel Inélastique (IETS) avec un Microscope à Effet Tunnel (STM) est une nouvelle technique de spectroscopie vibrationnelle, qui permet de caractériser des propriétés très fines de molécules adsorbées sur des surfaces métalliques. Des règles de selection d’excitation vibrationnelle basées sur la symétrie ont été proposées, cependant, elles ne semblent pas exhaustives pour expliquer la totalité du mécanisme et des facteurs en jeu; elles ne sont pas directement transposables pour les propriétés d'un adsorbat et sont lourdes d'utilisation. Le but de cette thèse est don

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23

Bigioni, Terry Paul. "Scanning tunneling microscopy and spectroscopy of passivated gold nanocrystals." Diss., Georgia Institute of Technology, 1999. http://hdl.handle.net/1853/30537.

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24

Clayton, Garrett M. "Image-based output trajectory estimation in scanning tunneling microscopes /." Thesis, Connect to this title online; UW restricted, 2008. http://hdl.handle.net/1773/7121.

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25

Shantyr, Roman. "Scanning tunneling microscopy, scanning tunneling spectroscopy on growth, atomic and electronic structure of Co oxide and Mn oxide films on Ag(001)." [S.l. : s.n.], 2004. http://deposit.ddb.de/cgi-bin/dokserv?idn=972530487.

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26

Bergmann, Kirsten von. "Iron nanostructures studied by spin-polarised scanning tunneling microscopy." [S.l. : s.n.], 2004. http://deposit.ddb.de/cgi-bin/dokserv?idn=971962464.

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27

Frey, Jeffrey T. "Quantum chemical studies of scanning tunneling microscopy and spectroscopy." Access to citation, abstract and download form provided by ProQuest Information and Learning Company; downloadable PDF file Mb., 245 p, 2006. http://proquest.umi.com/pqdlink?did=1251856811&Fmt=7&clientId=79356&RQT=309&VName=PQD.

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28

Buchsteiner, Philipp [Verfasser]. "Scanning Tunneling Spectroscopy of Rare Earth Hexaborides / Philipp Buchsteiner." Göttingen : Niedersächsische Staats- und Universitätsbibliothek Göttingen, 2020. http://d-nb.info/1224100344/34.

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29

Yee, Michael Manchun. "Scanning Tunneling Spectroscopy of Topological Insulators and Cuprate Superconductors." Thesis, Harvard University, 2014. http://dissertations.umi.com/gsas.harvard:11584.

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Over the past twenty-five years, condensed matter physics has been developing materials with novel electronic characteristics for a wide range of future applications. Two research directions have shown particular promise: topological insulators, and high temperature copper based superconductors (cuprates). Topological insulators are a newly discovered class of materials that can be manipulated for spintronic or quantum computing devices. However there is a poor spectroscopic understanding of the current topological insulators and emerging topological insulator candidates. In cuprate supercondu

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30

Chen, Ching-Tzu Yeh Nai-Chang. "Scanning tunneling spectroscopy studies of high-temperature cuprate superconductors /." Diss., Pasadena, Calif. : Caltech, 2006. http://resolver.caltech.edu/CaltechETD:etd-05222006-124257.

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31

Bae, Jungmok. "Modeling, control, and experimentation of a scanning tunneling microscope." Thesis, Massachusetts Institute of Technology, 1994. http://hdl.handle.net/1721.1/37734.

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32

Bredekamp, Adriaan H. "A scanning tunneling microscope control system with potentiometric capability." Master's thesis, University of Cape Town, 2003. http://hdl.handle.net/11427/6555.

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Includes bibliographical references.<br>This report starts by describing the background research and work that had already been done on the UCT scanning tunneling microscope (STM). This system is being developed in the Department of Electrical Engineering at UCT. It goes on to describe the continuation of the research work that was done for this dissertation on the STM at UCT. The work was originally started by Dr. Tapson for his PhD (1994). and continued by the author for his MTech degree in ) 997 and 1998. The work was temporary discontinued from May 2000 till August 2002 to enable the autho

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33

Babonis, Gregory S. "Low Temperature Scanning Tunneling Microscope for Single Atom Manipulation." Ohio University / OhioLINK, 2003. http://rave.ohiolink.edu/etdc/view?acc_num=ohiou1058475483.

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34

Quentin, Damien Charles. "Powder filters for a dilution fridge scanning tunneling microscope." Thesis, University of British Columbia, 2016. http://hdl.handle.net/2429/57448.

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In this thesis I present the design, construction, and characterization of metal powder microwave filters for a dilution refrigeration scanning tunneling microscope (STM) in the Laboratory for Atomic Imaging Research at the University of British Columbia. Scanning tunneling spectroscopy (STS) measurements performed by the STM are able to reveal features in the local density of states with energy resolution in the μeV regime if the sample and tunnel junction are cooled below 100 mK. The filters described in this work eliminate thermal noise and electromagnetic interference, which decrease energ

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35

吳誼暉 and Yee-fai Ng. "Optimization of etching parameters for STM tips and an STM study of SiC (0001) [square root]3 x [square root]3 reconstruction." Thesis, The University of Hong Kong (Pokfulam, Hong Kong), 1998. http://hub.hku.hk/bib/B29797834.

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36

Derro, David Joseph. "A scanning tunneling microscopy investigation of YBa₂Cu₃O₇-[subscript x] /." Digital version accessible at:, 2000. http://wwwlib.umi.com/cr/utexas/main.

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37

Ng, Yee-fai. "Optimization of etching parameters for STM tips and an STM study of SiC (0001) [square root]3 x [square root]3 reconstruction /." Hong Kong : University of Hong Kong, 1998. http://sunzi.lib.hku.hk/hkuto/record.jsp?B20567583.

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38

余家訓 and Ka-fan Yu. "Scanning probe microscopy of porous silicon formation." Thesis, The University of Hong Kong (Pokfulam, Hong Kong), 1999. http://hub.hku.hk/bib/B31222110.

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39

Quesenberry, Paul Elwin. "Scanning tunneling microscopy studies of a reactive interface, Ni/GaAs." Diss., Georgia Institute of Technology, 1996. http://hdl.handle.net/1853/30779.

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40

Zhang, Lei [Verfasser]. "Sub-Kelvin scanning tunneling microscopy on magnetic molecules / Lei Zhang." Karlsruhe : KIT Scientific Publishing, 2019. http://d-nb.info/1190297515/34.

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41

Garni, Brad. "Investigation of semiconductor optoelectronic surfaces with scanning tunneling microscopy and scanning tunneling luminiscence." 1996. http://catalog.hathitrust.org/api/volumes/oclc/36553610.html.

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42

WANG, YU JUI, and 王雨瑞. "Home-made scanning tunneling microscope." Thesis, 2005. http://ndltd.ncl.edu.tw/handle/20151614962537602145.

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碩士<br>國立中興大學<br>物理學系<br>93<br>A home-made scanning tunneling microscope has a vertical coarse po- sitioner , then it can be striped and installed new capabilities in the future. The instrument home-made in part has mechanical designs、a electric control、computer interfaces and program. Mechanical designs include outer frame、inner stage、suspension spring system、damping vibration isolation、coarse positioner、scanner、tip and sample holder. All parts were made by ourselves. We made an outer frame of aluminum alloys and the outer frame fixed in an eight inches flange. It can connect the flange and t

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43

Yang, Chao-Chia, and 楊肇嘉. "Home-made Scanning Tunneling Microscope." Thesis, 2007. http://ndltd.ncl.edu.tw/handle/88396502022871589496.

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碩士<br>國立交通大學<br>物理研究所<br>95<br>Abstract Scanning Tunneling Microscopy (STM) has been developed for more than 20 years. It brought us a new tool to explore the nano world even on atomic scale and it also presented us the application of quantum mechanics (tunneling effect). Its importance in research of surface science has been well established, but its high cost and complexity prohibit undergraduate students from studies by using this tool. We build a simple STM using low cost audio transducers for STM scanner and low voltage for driving it. The stepper consists of micrometrical screws and, by

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44

Coope, Robin J. N. "A combined scanning tunneling microscope and scanning electron microscope." Thesis, 1996. http://hdl.handle.net/2429/4595.

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A scanning tunneling microscope (STM) was developed to work in conjunction with a Hitachi S-4100 field emission scanning electron microscope (SEM). To achieve the necessary five degrees of freedom for sample and probe movement, an entirely mechanical method was used, employing pairs of parallelogram flexure hinges actuated by set screws driven through gear reduction. The STM was also configured such that the sample is mounted on the piezoelectric scanner and the probe is fixed. This allowed the sample to be positioned close to the objective aperture of the SEM. The role of the SEM was e

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45

Hsu, Kevin, and 徐中文. "Imaging DNA Using Scanning Tunneling Microscopy." Thesis, 2006. http://ndltd.ncl.edu.tw/handle/06527233112602635889.

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碩士<br>東海大學<br>物理學系<br>94<br>Since the Scanning Tunneling Microscopy (STM) can achieve atomic-scale resolution in imaging, it has been used to study surface nanostructures of various materials. In order to image DNA with STM, a protocol of preparing DNA immobilized on annealed gold foil has been developed. Using STM in air, clear image of DNA has been obtained. Moreover, DNA in de-ionized water can also be imaged by using tungsten tip coated with nail polish. These progresses can shed light on further studies in the molecular biology.

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46

Heben, Michael Joseph. "Scanning tunneling microscopy in electrochemical environments." Thesis, 1990. https://thesis.library.caltech.edu/2562/1/Heben_mj_1990.pdf.

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NOTE: Text or symbols not renderable in plain ASCII are indicated by [...]. Abstract is included in .pdf document. Scanning tunneling microscopy (STM) has been demonstrated to be an important analytical tool for the in situ characterization of electrode surfaces. However, in an electrochemical environment, the tip/sample bias necessary for electron tunneling can also drive heterogeneous charge transfer reactions between the solution-contacted portions of the tip and sample. This faradaic current acts in parallel to the normally measured tunneling current and the measured sum may not exhibit t

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47

Vendroux, Guillaume. "Scanning tunneling microscopy in micromechanics investigations." Thesis, 1994. https://thesis.library.caltech.edu/2623/1/Vendroux_G_1994.pdf.

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NOTE: Text or symbols not renderable in plain ASCII are indicated by [...]. Abstract is included in .pdf document. A new experimental method is proposed for studying deformations of micromechanical material systems at the submicron scale. To that end, a Scanning Tunneling Microscope (STM) was designed and built to allow placement on a mechanically deforming specimen. Operating in constant current mode, this digitally controlled STM records detailed topographies of specimen surfaces with a resolution of 10.15 nm in-plane and [...] out-of-plane, over a [...] area. A pattern recognition type al

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48

Zech, Martin [Verfasser]. "Scanning tunneling microscopy and photoelectron tunneling on cesium / von Martin Zech." 2007. http://d-nb.info/984599886/34.

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49

Lin, Wei-Tso, and 林威佐. "Scanning Tunneling Spectroscopy and Mass Transport in Gold Flakes Fabricated from Redox Reaction study by Scanning Tunneling Microscope." Thesis, 2013. http://ndltd.ncl.edu.tw/handle/05105423068400208076.

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碩士<br>國立交通大學<br>電子物理系所<br>101<br>Scanning tunneling microscope (STM) is used to study surfaces of gold flakes, fabricated by redox reaction. In addition, Transmission electron microscope (TEM) is used to take atomic image and diffraction pattern for the evaluation of the lattice constant. The composition of gold flakes is confirmed, as well, by energy dispersive spectroscope (EDS). The area and thickness of the gold flakes are about 100μm2 and 40-80 nm, respectively, which are measured from scanning electron microscope (SEM) and atomic force microscope (AFM) images. According to the structure

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50

Drevniok, BENEDICT. "A Vertical Coarse Approach Scanning Tunneling Microscope." Thesis, 2009. http://hdl.handle.net/1974/1972.

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A Pan-style scanning tunneling microscope (STM), with a vertical coarse approach mechanism, was designed, built and tested. The microscope will be operated in ultra-high vacuum and also at cryogenic temperatures (8 K) inside a continuous flow cryostat. Fundamental differences in operating principle exist between the new microscope and the beetle-type inertial sliders [1] that have been the mainstay of the group for the last eight years. While Pan-style microscopes do already exist [2], they remain challenging to build, and an active area of research [3]. This system represents a bold departure

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