Sökning: "Bulk"

Visar resultat 11 - 15 av 1428 avhandlingar innehållade ordet Bulk.

  1. 11. Eastern equatorial Pacific bulk sediment properties and paleoceanography since the late Neogene

    Författare :Daniele Reghellin; Helen K. Coxall; Jan Backman; Gerald R. Dickens; Steve Hovan; Stockholms universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Paleoceanography; late Neogene; eastern equatorial Pacific; deep sea sediments; bulk sediment; stable isotopes; surface mixed layer; sediment physical properties; Marine Geology; maringeologi;

    Sammanfattning : Reconstructing eastern equatorial Pacific (EEP) oceanography since the late Neogene (about 8 million years ago, Ma) is a central topic in current paleoceanographic investigations. The reason for this is two-fold. LÄS MER

  3. 12. Bulk-boundary correspondence and biorthogonality in non-Hermitian systems

    Författare :Elisabet Edvardsson; Emil Bergholtz; Henning Schomerus; Stockholms universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; non-Hermiticity; bulk-boundary correspondence; biorthogonal quantum mechanics; skin effect; Theoretical Physics; teoretisk fysik;

    Sammanfattning : In topological insulators, the bulk-boundary correspondence describes the relationship between the bulk invariant -- computed for a system with periodic boundary conditions -- and the number of topological boundary states in the corresponding system with open boundary conditions. This is a well-known property of these systems and is important for predicting how they will behave. LÄS MER

  4. 13. Entanglement spectrum and the bulk polarization

    Författare :Carlos Ortega-Taberner; Maria Hermanns; Jens Bardarson; Stockholms universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; teoretisk fysik; Theoretical Physics;

    Sammanfattning : In this Licentiate thesis we give a brief review on the topics of topologicalinsulator and superconductor phases, the modern theory of polarization andthe entanglement spectrum, with a focus on one- and two-dimensional systems.In the context of symmetry protected topological systems the bulk polarizationcan be a topological invariant which characterizes the topological phase. LÄS MER

  5. 14. Growth and Characterization of AlN : From Nano Structures to Bulk Material

    Författare :Gholamreza Yazdi; Rositza Yakimova; Mikael Syväjärvi; Zlatko Sitar; Linköpings universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Physics; Fysik;

    Sammanfattning : Aluminum nitride (AlN) exhibits a large direct band gap, 6.2 eV, and is thus suitable forsolid state white-light-emitting devices. It is capable in spintronics because of its high Curietemperature if doped with transition metals. LÄS MER

  7. 15. Sublimation Growth of 3C-SiC : From Thick Layers to Bulk Material

    Författare :Valdas Jokubavičius; Mikael Syväjärvi; Rositsa Yakimova; Didier Chaussende; Linköpings universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES;

    Sammanfattning : Silicon carbide (SiC) is a semiconductor material which holds high promises for various device applications. It can be obtained in different crystal structures called polytypes. The most common ones are hexagonal (6H- and 4H-SiC) and cubic (3C-SiC) silicon carbide. LÄS MER