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E.S.R. spectra of Mn2+ in powdersDobney, Philip Thomas January 1969 (has links)
107 leaves : ill., appendices / Title page, contents and abstract only. The complete thesis in print form is available from the University Library. / Thesis (Ph.D.)--University of Adelaide, Dept. of Physics, 1970
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Atomic resolution microscopy using electron energy-loss spectroscopyWitte, C. January 2008 (has links)
This thesis explores the theory of electron energy-loss spectroscopy (EELS) in atomic resolution electron microscopy. / The first unequivocal evidence of the effective nonlocal potential in momentum-transfer-resolved EELS is presented. For suitable geometries, the nonlocal potential can be well approximated by a local potential. In scanning transmission electron microscopy (STEM) the validity of this is mainly influenced by the detector size and, contrary to conventional wisdom, a thin annular detector does not allow direct image interpretation. It is found that the best way to ensure the potential is well approximated by a local potential is to use a detector with a large collection angle. / To simplify computation and interpretation it is desirable to make the single-channelling approximation. In this approximation only the elastic scattering of the probe before the ionisation event is modelled. It is shown how this approximation breaks down for the small detectors used in momentum-transfer-resolved EELS and this is confirmed with experimental results. Double-channelling calculations, where the channelling of the probe both before and after the ionisation event are modelled, can also be simulated. An alternative approximation for small detectors that includes double channelling and is more applicable for momentum-transfer-resolved EELS is also presented. / Beyond chemical information, the fine structure of an absorption edge gives bonding and electronic information. Incorporating fine structure into channelling theory allows the exploration of the effects of channelling on fine structure. The weighting of the two different spectra in graphite, as a function of incident probe tilt in momentum-transfer-resolved EELS, is calculated using double-channelling simulations. This is combined with experimental data and multivariate statistical analysis to extract the two physical spectra, greatly simplifying the analysis of a large data set. / The effect of the nonlocal potential and channelling on site-specific electronic structure analysis by channelling EELS is examined. It is found that using a large on-axis detector can make the interaction effectively local, leading to a greater change in the spectra as a function of sample tilt. Alternatively offsetting the detector can achieve similar results but at the cost of greater statistical noise. Channelling calculations were combined with the program FEFF and the full energy differential cross section was calculated from first principles for the aluminium K edge as a function of sample tilt in nickel aluminate spinel. Qualitative agreement with experiment was found but quantitative agreement will require further investigation. / The theory of fine structure in STEM was examined, using strontium titanate to see how the high spatial resolution of STEM can be used in conjunction with energy-loss near-edge spectroscopy measurements. The possibility of imaging unoccupied electron molecular orbitals using STEM was also examined.
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Electrochemical depositions directed towards the development of magnetoelectronic devicesZhang, Chunjuan. January 1900 (has links)
Thesis (Ph.D.)--University of Nebraska-Lincoln, 2007. / Title from title screen (site viewed Feb. 22, 2008). PDF text: ix, 104 p. : ill. (some col.) ; 6 Mb. UMI publication number: AAT 3274755. Includes bibliographical references. Also available in microfilm and microfiche formats.
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Structural and electronic properties of BaV10O15, BaV10-xTixO15, and BaVO3-x /Bridges, Craig Allan. Greedan, John E. January 2002 (has links)
Thesis (Ph.D.)--McMaster University, 2002. / In title, numbers in chemical formula are subscript. Adviser: John Greedan. Includes bibliographical references. Also available via World Wide Web.
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Structural and electronic properties of BaV10O15, BaV10-xTixO15, and BaVO3-x /Bridges, Craig Allan. Greedan, John E. January 2002 (has links)
Thesis (Ph.D.)--McMaster University, 2002. / In title, numbers in chemical formula are subscript. Adviser: John Greedan. Includes bibliographical references. Also available via World Wide Web.
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Analysis and correction of three-dimensional proximity effect in binary E-beam nanolithographyAnbumony, Kasi Lakshman Karthi, Lee, Soo-Young. January 2007 (has links) (PDF)
Thesis(M.S.)--Auburn University, 2007. / Abstract. Vita. Includes bibliographic references.
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E.S.R. spectra of Mn2+ in powders.Dobney, Philip Thomas. January 1969 (has links) (PDF)
Thesis (Ph.D.) -- University of Adelaide, Dept. of Physics, 1970.
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Precipitation of charged particles into the midlatitude upper atmosphere.Chamberlain, Malcolm Trevor. January 1977 (has links) (PDF)
Thesis (Ph.D.) -- University of Adelaide, Mawson Institute, 1978.
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A procedure to characterize electron-beam resist using a scanning electron microscope and study of process optimization of an electron beam imaging system using experimental design methods /Pyles, Randall C. January 1992 (has links)
Thesis (M.S.)--Rochester Institute of Technology, 1992. / Typescript. Includes bibliographical references (leaves 114-116).
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Superoxide production in respiratory electron transport minimization and utilizationForquer, Isaac Paul, January 2008 (has links) (PDF)
Thesis (Ph. D.)--Washington State University, December 2008. / Title from PDF title page (viewed on Apr. 15, 2009). "School of Molecular Biosciences." Includes bibliographical references.
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