Search for dissertations about: "Fasta tillståndets fysik"

Showing result 1 - 5 of 57 swedish dissertations containing the words Fasta tillståndets fysik.

  1. 1. Transmission Electron Microscopy for Characterization of Structures, Interfaces and Magnetic Moments in Magnetic Thin Films and Multilayers

    University dissertation from Uppsala : Acta Universitatis Upsaliensis

    Author : Hans Lidbaum; Klaus Leifer; Peter Svedlindh; Josef Zweck; [2009]
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; Transmission electron microscopy; TEM; magnetism; multilayer; superlattice; thin films; amorphous metals; electron energy-loss magnetic circular dichroism; EMCD; electron diffraction; NATURAL SCIENCES Physics Condensed matter physics Magnetism; NATURVETENSKAP Fysik Kondenserade materiens fysik Magnetism; NATURAL SCIENCES Physics Condensed matter physics Surfaces and interfaces; NATURVETENSKAP Fysik Kondenserade materiens fysik Ytor och mellanytor; NATURAL SCIENCES Physics; NATURVETENSKAP Fysik; Engineering Science with specialization in Solid State Physics; Teknisk fysik med inriktning mot fasta tillståndets fysik; Materiefysik; Physics of Matter;

    Abstract : Structural characterization is essential for the understanding of the magnetic properties of thin films and multilayers. In this thesis, both crystalline and amorphous thin films and multilayers were analyzed utilizing transmission electron microscopy (TEM). READ MORE

  2. 2. The optical properties of automatically darkening welding filters based on liquid crystal technology

    University dissertation from Uppsala : Acta Universitatis Upsaliensis

    Author : Stephen Palmer; Uppsala universitet.; [1998]
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; Physics; Fysik; NATURAL SCIENCES Physics; NATURVETENSKAP Fysik; Solid State Physics; fasta tillståndets fysik;

    Abstract : This thesis addresses the problem of the poor optical angular properties displayed by automatically darkening welding filters that are based on liquid crystal technology. It is shown that by reducing thetwist-angle present in the liquid crystal cell to below that of 90° together with employment of a novel polariser arrangement, an optical shutter design using a double-cell construction is obtained thatpossesses a reduced angular transmittance variation when in the activated phase. READ MORE

  3. 3. Physics from Wholeness Dynamical Totality as a Conceptual Foundation for Physical Theories

    University dissertation from Uppsala : Acta Universitatis Upsaliensis

    Author : Barbara Piechocinska; Claes-Göran Granqvist; Erik Sjöqvist; Laszlo Kish; [2005]
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; Physics; wholeness; elementary embedding; left-distributivity; braids; special braids; entropy; Temperley-Lieb algebra; von Neumann algebra; Potts model; Fysik; NATURAL SCIENCES Physics; NATURVETENSKAP Fysik; Solid State Physics; fasta tillståndets fysik;

    Abstract : Motivated by reductionism's current inability to encompass the quantum theory we explore an indivisible and dynamical wholeness as an underlying foundation for physics. After reviewing the role of wholeness in the quantum theory we set a philosophical background aiming at introducing an ontology, based on a dynamical wholeness. READ MORE

  4. 4. First Principles Studies on Chemical and Electronic Structures of Adsorbates

    University dissertation from Stockholm : KTH

    Author : Wenhua Zhang; Yi Luo; Gianfranco Pacchioni; [2009]
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; NATURAL SCIENCES Chemistry Inorganic chemistry Solid state chemistry; NATURVETENSKAP Kemi Oorganisk kemi Fasta tillståndets kemi; NATURAL SCIENCES Physics Other physics Computational physics; NATURVETENSKAP Fysik Övrig fysik Beräkningsfysik; NATURAL SCIENCES Physics Condensed matter physics Surfaces and interfaces; NATURVETENSKAP Fysik Kondenserade materiens fysik Ytor och mellanytor;

    Abstract : In this thesis, we focus on theoretical study of adsorbates on metal and oxide surfaces that are important for surface chemistry and catalysis. Based on first principles calculations, the adsorption ofCO, NO, NO2, C4H6S2, C22H27SH and other molecules or radicals on nobel metal surfaces (gold and silver) are investigated. READ MORE

  5. 5. Photo-polymerization as a tool for engineering the active material in organic field-effect transistors

    University dissertation from Umeå : Print & Media

    Author : Andrzej Dzwilewski; Ludvig Edman; Xavier Crispin; [2009]
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; Field-effect transistor; photo-polymerization; PCBM; C60; Fullerene; NATURAL SCIENCES Physics; NATURVETENSKAP Fysik; fasta tillståndets fysik; Solid State Physics;

    Abstract : The emergence of organic semiconductors is exciting since it promises to open up for straightforward and low-cost fabrication of a wide range of efficient and novel electronic devices. However, in order for this promise to become reality it is critical that new and functional fabrication techniques are developed. READ MORE