Sökning: "iron garnets"

Hittade 4 avhandlingar innehållade orden iron garnets.

  1. 1. Fibre Optic Magnetic Field Sensors Utilizing Iron Garnet Materials

    Författare :Hans Sohlström; KTH; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; yig; iron garnets; rare earth garnets; magneto-opics; optical waveguide; fibre optical sensors; magnetic field measurement; current measurement;

    Sammanfattning : This thesis deals with the subject of fibre optic magnetic field sensors utilizing iron garnet materials. Such materials exhibit a large Faraday rotation which make them advantageous for application in compact mag­netic field sensors. LÄS MER

  3. 2. Magnetic resonance in new iron garnets : tools and applications

    Författare :Vasyl Denysenkov; KTH; []
    Nyckelord :Ferromagnetic; Resonance; Ferrites; Microwaves; FMR; Spectrometers; Magnetic anisotropy; Magnetostatic waves;

    Sammanfattning : .... LÄS MER

  4. 3. Bismuth iron garnet films for magneto-optical photonic crystals

    Författare :Sören Kahl; KTH; []
    Nyckelord :Faraday effect; iron garnet; pulsed laser deposition; photonic crystals;

    Sammanfattning : The thesis explores preparation and properties of bismuthiron garnet (BIG) films and the incorporation of BIG films intoone-dimensional magneto-optical photonic crystals (MOPCs). Films were prepared by pulsed laser deposition. LÄS MER

  5. 4. Broadband Ferromagnetic Resonance Spectrometer : Instrument and Applications

    Författare :Vasyl Denysenkov; KTH; []
    Nyckelord :ferrites; thin films; ferromagnetic resonance; microwaves; FMR spectrometer; magnetic anisotropy; magnetostatic waves;

    Sammanfattning : This thesis compiles results of research in two mutuallydependent parts: 1) development of ferromagnetic resonance(FMR) spectrometer to study microwave properties offerromagnetic materials, and 2) characterization of new irongarnets: pulsed laser deposited Y3Fe5O12and Bi3Fe5O12films and Ce:Y3Fe5O12single crystal.First part describes a novelBroadbandFMRSpectrometerdesigned to characterize thin ferromagneticfilms. LÄS MER