Avancerad sökning

Hittade 3 avhandlingar som matchar ovanstående sökkriterier.

  1. 1. Configurational and Magnetic Interactions in Multicomponent Systems

    Författare :Björn Alling; Igor A. Abrikosov; Lars Hultman; Stefan Blügel; Linköpings universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Magnetic interactions; Configurational thermodynamics; Curie temperature; theoretical physics; magnetism; TiAlN; TiN; AlN; CrN; TiCrN; nitrides; NiMnSb; NiCuMnSb; Heusler alloys; spintronics; half-metallic; spinodal decomposition; first-principles; ab-initio; Magnetism; Magnetism;

    Sammanfattning : This thesis is a theoretical study of configurational and magnetic interactions in multicomponent solids. These interactions are the projections onto the configurational and magnetic degrees of freedom of the underlying electronic quantum mechanical system, and can be used to model, explain and predict the properties of materials. LÄS MER

  3. 2. Theoretical Descriptions of Complex Magnetism in Transition Metals and Their Alloys

    Författare :Marcus Ekholm; Igor Abrikosov; Sergey Simak; Leonid Pourovskii; John M. Wills; Linköpings universitet; []
    Nyckelord :;

    Sammanfattning : In this thesis, various methods for studying solids by simulations of quantummechanical equations, have been applied to transition metals and their alloys. Transition metals such as Fe, Ni, and Mn, are not only cornerstones in modern technology, but also key components in the very fabric of the Earth interior. LÄS MER

  4. 3. Spin Torque and Spin Hall Nano-Oscillators with Single Magnetic Layers

    Författare :Philipp Dürrenfeld; Göteborgs universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Spintronics; Spin Torque Oscillators; Spin Hall Effect; Synchronization;

    Sammanfattning : Spin-torque oscillators (STOs) are capable of producing tunable broadband high-frequency signals within a nanometer-sized region. In this thesis, novel designs for STOs will be discussed; the common theme of these designs will be their use of only one ferromagnetic (FM) material. LÄS MER