Search for dissertations about: "x-ray photoemission"

Showing result 16 - 20 of 42 swedish dissertations containing the words x-ray photoemission.

  2. 16. Electronic materials : growth and characterisation

    Author : Michael A. Grishin; Ulf O. Karlsson; Massimo Sancrotti; KTH; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Electrophysics; Photoemission; Ultra-short laser pulse; Thin film; Laser deposition; InSb; InAs; GaSb; Ferroelectrics; Elektrofysik; Electrophysics; Elektrofysik;

    Abstract : In this thesis the InSb(111), InAs(111) and GaSb(001) surfaces have been studied by means of time- and angle-resolved photoemission spectroscopy based upon the femtosecond laser system. The pump-and-probe technique allows to analyse both electron states in the valence band and normally unpopulated electron states above the valence band, which can be occupied by transiently excited carriers at the optically pumped surface. READ MORE

  4. 17. Reaction Mechanisms and Dynamics in the Early Stage of High-κ Oxide Atomic Layer Deposition : Investigations by In Situ and Operando X-ray Photoemission Spectroscopy

    Author : Giulio D Acunto; NanoLund: Centre for Nanoscience; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; atomic layer depostion ALD ; high-k oxide; in situ and operando study; XPS; APXPS; Fysicumarkivet A:2022:D Acunto;

    Abstract : Atomic layer deposition (ALD) is an outstanding deposition technique to deposit highly conformal and uniform thin films with atomic precision. In particular, ALD of transition metal oxide layers from metal amido complexes and water finds its way in several technological fields, including green energy devices and in the semiconductor industry. READ MORE

  5. 18. Photoelectron Spectroscopy of Cuprates and Manganites

    Author : Mats Leandersson; Lunds universitet; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; HTSC; photoelectron spectroscopy; angle resolved photoemission; magnetoresistance; superconductivity; magnetic resonance; relaxation; spectroscopy; Kondenserade materiens egenskaper:elektronstruktur; magnetiska och optiska ; egenskaper elektriska; supraledare; magnetisk resonans; Physics; spektroskopi; resonant photoemission; Condensed matter:electronic structure; CMR; electrical; supraconductors; magnetic and optical properties; Fysik; Fysicumarkivet A:2000; Leandersson;

    Abstract : Abstract In this thesis, the high temperature superconductors (HTSC) La2CuO4+x and Bi2Sr2CaCu2O8+d and the colossal magnetoresistive (CMR) La1-xSrxMnO3 have been studied by photoelectron spectroscopy. Techniques such as angular resolved photoemission (ARPES), resonant photoemission spectroscopy (RESPES) and x-ray absorption spectroscopy have been applied, using synchrotron radiation. READ MORE

  6. 19. Photoemission and Characterization of Neutrophils and Nanoparticles : Energy Mapping and Elemental Composition with sub-µm Resolution

    Author : Andreas Skallberg; Kajsa Uvdal; Christelle Prinz; Linköpings universitet; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES;

    Abstract : Imaging and visualization of cells and tissues are important when studying various biological phenomena. The ability to provide spatial information with molecular and chemical specificity may increase our insight and understanding of biological problems within life sciences. READ MORE

  7. 20. Calculations of Clean and Adsorbate Covered Metal Surfaces and their Core-Level Photoemission Spectra

    Author : Martin Birgersson; Matematisk fysik; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; chemical shifts; density functional theory; Condensed matter:electronic structure; electrical; magnetic and optical properties; supraconductors; magnetic resonance; relaxation; Atomic and molecular physics; spektroskopi; magnetisk resonans; supraledare; magnetiska och optiska ; egenskaper elektriska; spectroscopy; Kondenserade materiens egenskaper:elektronstruktur; core-level photoemission; single crystal surfaces; Atom- och molekylärfysik; Fysicumarkivet A:2002:Birgersson; core-hole degeneracies; metal surfaces; adsorption; molecular vibrations;

    Abstract : The present thesis is concerned with the theoretical study of x-ray photoemission spectra from clean and adsorbate-covered metal surfaces. The main tool is ab initio density functional (DFT) total energy calculations. READ MORE