Search for dissertations about: "Magnetic interactions"

Showing result 1 - 5 of 186 swedish dissertations containing the words Magnetic interactions.

  1. 1. Fundamental Properties of Functional Magnetic Materials

    University dissertation from Uppsala : acta universitatis upsaliensis

    Author : Magnus Wikberg; Uppsala universitet.; [2010]
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; Magnetic anisotropy; magnetic aging; magnetic semiconductors; exchange interactions; magnetic oxides; spin glasses; lithium-ion batteries; short-range magnetic order; NATURAL SCIENCES Physics; NATURVETENSKAP Fysik; Engineering Science with specialization in Solid State Physics; Teknisk fysik med inriktning mot fasta tillståndets fysik;

    Abstract : Magnetic properties of powders, thin films and single crystals have been investigated using magnetometry methods. This thesis provides analysis and conclusions that are supported by the results obtained from spectroscopic and diffraction measurements as well as from theoretical calculations. READ MORE

  2. 2. Configurational and Magnetic Interactions in Multicomponent Systems

    University dissertation from Linköping : Linköpings Universitet

    Author : Björn Alling; Linköpings universitet.; Linköpings universitet.; [2010]
    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; NATURAL SCIENCES Physics Condensed matter physics Magnetism; NATURVETENSKAP Fysik Kondenserade materiens fysik 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

  3. 3. Molecular Diagnostics Using Volume-Amplified Magnetic Nanobeads Towards the Development of a Novel Biosensor System

    University dissertation from Uppsala : Universitetsbiblioteket

    Author : Mattias Strömberg; Uppsala universitet.; [2009]
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Magnetic Biosensors; Ferrofluid; Biofunctionalisation; Ferrofluidic Aging; Interbead Interactions; Magnetic Nanobeads; Complex Magnetisation; Brownian Relaxation; Padlock Probes; Rolling Circle Amplification; TECHNOLOGY Engineering physics; TEKNIKVETENSKAP Teknisk fysik;

    Abstract : Micro- or nanometer sized magnetic particles (beads) currently have a vast range of life science applications in, for example, bioseparation techniques, cancer therapy, development of contrast agents and biosensing techniques. In the latter field, magnetic beads offer several unique advantages, including minimal background signals, physical and chemical stability and low manufacturing costs. READ MORE

  4. 4. Effects of Spin-Orbit Interactions in Ferromagnetic Metal Nanoparticles

    University dissertation from Uppsala : Universitetsbiblioteket

    Author : Aleksander Cehovin; Lunds universitet.; Lund University.; [2003]
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; electrical; magnetic and optical properties; elementary spin excitations; spektroskopi; magnetisk resonans; supraledare; electron tunneling spectroscopy; Condensed matter:electronic structure; magnetic anisotropy; spin-orbit interactions; magnetism in nanostructures; egenskaper elektriska; ferromagnetic materials; magnetiska och optiska ; Kondenserade materiens egenskaper:elektronstruktur; relaxation; spectroscopy; supraconductors; magnetic resonance; Fysicumarkivet A:2003:Cehovin;

    Abstract : Popular Abstract in Swedish Denna avhandling fokuserar på effekterna av spin-ban växelverkan (SBV) i nanometerstora ferromagnetiska metallpartiklar. SBV kan betraktas som en interaktion mellan två magnetiska moment, varav det ena utgörs av elektronens spin och det andra är orsakat av elektronens egen banrörelse. READ MORE

  5. 5. Studies of magnetic multi-core nanoparticles for biomedical applications

    University dissertation from Chalmers University of Technology

    Author : Vincent Schaller; Chalmers tekniska högskola.; Chalmers University of Technology.; [2009]
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Magnetism; Magnetism; Beräkningsfysik; Computational physics; Funktionella material; Functional materials; Medicinsk teknik; Medical engineering; Magnetic multi-core nanoparticles; magnetic immunoassays; magnetic bioseparation; Brownian dynamics; Monte Carlo method; Metropolis algorithm; digital microfluidics; electrowetting-on-dielectric EWOD ;

    Abstract : In recent years, there has been growing interest in using magnetic multi-core nanoparticles in biomedical applications, and particularly in bioseparation and biosensing. In this thesis, two computer simulation techniques have been implemented to study the magnetic response of these particles, and a microfluidic platform has been fabricated to manipulate bio-functionalized magnetic particles in suspension for immunoassays. READ MORE