Search for dissertations about: "heusler"

Showing result 1 - 5 of 11 swedish dissertations containing the word heusler.

  2. 1. Spin Current Generation in Magnetic Heterostructures and its Impact on Terahertz Emission : A Spin Dynamics Perspective

    Author : Rahul Gupta; Peter Svedlindh; Olof Karis; Mathias Kläui; Uppsala universitet; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; spin-orbit torque; spintronic terahertz emitter; spin dynamics; ultrafast spin dynamics; spin current; ferromagnetic resonance; Heusler; magnetic thin film; epitaxial film; Engineering Science with specialization in Solid State Physics; Teknisk fysik med inriktning mot fasta tillståndets fysik;

    Abstract : The transfer of knowledge from one generation to another is key to the intellectualness of mankind. In the present information age, digital technology provides easy access to knowledge and information. READ MORE

  4. 2. Configurational and Magnetic Interactions in Multicomponent Systems

    Author : Björn Alling; Igor A. Abrikosov; Lars Hultman; Stefan Blügel; Linköpings universitet; []
    Keywords : 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;

    Abstract : 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. READ MORE

  5. 3. Magnetization Dynamics in Ferromagnetic Thin Films : Evaluation of Different Contributions to Damping in Co2FeAl and FeCo Film Structures

    Author : Serkan Akansel; Peter Svedlindh; Olof Karis; Erik Wahlström; Uppsala universitet; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; spintronics; Gilbert damping parameter; magnetization dynamics; ferromagnetic resonance; Heusler alloys; magnetic thin films; Physics with spec. in Atomic; Molecular and Condensed Matter Physics; Fysik med inriktning mot atom- molekyl- och kondenserande materiens fysik;

    Abstract : Static and dynamic magnetic properties of Co2FeAl and Fe65Co35 alloys have been investigated. Co2FeAl films were deposited at different temperatures and the deposition parameters were optimized with respect to structural and magnetic properties. As a result, a film with B2 crystalline phase was obtained without any post-annealing process. READ MORE

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

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

    Abstract : 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. READ MORE

  7. 5. New Materials for Spintronics : Electronic structure and magnetism

    Author : Ronny Knut; Olof Karis; Biplab Sanyal; Hermann Durr; Uppsala universitet; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; Spintronics; X-ray photoemission; XPS; XMCD; XAS; magnetic semiconductors; HIKE; HAXPES; multilayer; monte carlo; magnetism; Physics with spec. in Atomic; Molecular and Condensed Matter Physics; Fysik med inriktning mot atom- molekyl- och kondenserande materiens fysik;

    Abstract : Materials exhibiting new functionalities due to interdependent electric (e.g. conductivity) and magnetic properties are potentially interesting for spintronics applications. READ MORE