Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 9 of 9 for “"Electron Holography"”.
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Quantitative off-axis Electron Holography and (multi-)ferroic interfaces
… be either directly or indirectly probed with an electron beam such as used in Transmission Electron Microscopy (TEM). Consequently, TEM is excellently suited for investigating ferroic materials, i.e., state-of-the-art instruments facilitate aberration corrected imaging within a large …
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INVESTIGATION OF CRYOGENIC SURFACE CHARGING DURING OFF-AXIS ELECTRON HOLOGRAPHY
Cryogenic electron microscopy (cryo-EM) is an increasingly popular technique for determining the structure of solutions, especially of those with protein solutes. The ability to immobilize a fluid and attain atomic resolution of solutes within has propelled the technique to the forefront of …
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A nanofabricated amplitude-division electron interferometer in a transmission electron microscope
Wavefront-division electron interferometry with the electron biprism has enabled many applications such as electron holography, exit-wave reconstruction, and demonstration of the Aharonov-Bohm effect. However, wavefront-division interferometry is limited by the requirement of high source coherence. …
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Low-dimensional carbon allotropes: an electron microscopy investigation
… was performed using a wide range of transmission electron microscopy (TEM) techniques, from conventional imaging and diffraction, to advanced interferometric methods, like electron holography and Geometric Phase Analysis (GPA), using a low-voltage optical set-up, to reduce radiation damage in the …
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Modeling and simulations of low dimensional and nanostructured materials systems at the nanoscale
… third and the forth focus on X-ray spectra and electron holography simulations for which electronic structure calculations are needed. The present thesis gives a general overview on various computational approaches that are useful in modeling novel low dimensional and nanostructured materials, …
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Reguläre bakterielle Zellhüllenproteine als biomolekulares Templat
… investigations by means of transmission electron microscopy, electron holography, scanning force microscopy, image analysis, and image processing. Preferred cluster-deposition sites are determined by correlation averaging. A more precise determination and quantification is obtained by …
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Ingeniería de estructura y composición de nitruros componentes de transistores HEMT de nueva generación
… techniques, mostly those based on accelerated electron beams (both image and spectroscopy), X-rays and ion beams, in order to achieve an improvement in the electronic properties of novel devices consisting of high electron mobility transistors (HEMTs). On this purpose, different methodologies …
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Quantitative Messung von Dotiergebieten in FIB-präparierten Silizium-Halbleiterbauelementen mittels Elektronenholographie
Das Einbringen von Dotierstoffen in das Substratmaterial ist einer der wichtigsten Teilprozesse in der Halbleiterindustrie. Größe, Lage und Konzentration elektrisch aktiver Dotiergebiete bestimmen wesentlich die Eigenschaften der mikroelektronischen Basisbauelemente und damit die Funktionalität der …