Sökning: "Ferromagnetic"

Visar resultat 16 - 20 av 51 uppsatser innehållade ordet Ferromagnetic.

  1. 16. Probing magnetic Dynamics inNanoarrays using AC susceptibility

    L3-uppsats, Uppsala universitet/Materialfysik

    Författare :Tobias König; [2020]
    Nyckelord :;

    Sammanfattning : This project revised a magneto-optical ac susceptometer aiming to improve the experimentalapproach to investigate the magnetization dynamics of magnetic nano arrays.First the experimental setp was equipped with a new Helmholtzcoil which enables strongerAC magnetic eld compared to the installed coils on the system. That includes i.e. LÄS MER

  3. 17. A theoretical study of longitudinal and transverse spin fluctuations in disordered Fe64Ni36 alloys

    Master-uppsats, Linköpings universitet/Teoretisk Fysik

    Författare :Amanda Ehn; [2020]
    Nyckelord :INVAR effect; longitudinal spin fluctuations; transversal spin fluctuations;

    Sammanfattning : That certain iron and nickel alloys exhibit an anomalously low thermal expansion of a wide temperature range has been observed since late 1800s, and this effect is known as the Invar effect. Since then, many theories have been proposed to explain the phenomenon. LÄS MER

  4. 18. Design and Simulation of Terahertz Antenna for Spintronic Applications

    Kandidat-uppsats, Uppsala universitet/Institutionen för materialvetenskap

    Författare :Nils Eivarsson; Malin Bohman; Emil Grosfilley; Axel Lundberg; [2020]
    Nyckelord :spintronics; terahertz; THz; antenna; simulation; COMSOL multiphysics;

    Sammanfattning : Spintronics is a spin-electronic field where the electron spinangular momentum, in conjunction with charge, is used to read andwrite information in magnetic sensors and logic circuits, e.g. hard disk drive (HDD), magnetic random access memory (MRAM) and broadband TeraHertz (THz) emitters. LÄS MER

  5. 19. Röntgensjuksköterskor av att arbeta i MR miljö : en kvalitativ intervjustudie

    Kandidat-uppsats, Högskolan i Jönköping/Hälsohögskolan

    Författare :Hind Alamere; [2019]
    Nyckelord :säkerhet; arbetsmiljö; samspel; magnetfält;

    Sammanfattning : Background: In the early 1980s, the use of the magnetic resonance imaging (MRI) in medical diagnostics increased. MRI examination is considered a safer method than the use of ionizing radiation. LÄS MER

  7. 20. Impact of Surrounding Objects on Inductive Wireless Power Transfer

    Master-uppsats, Lunds universitet/Institutionen för elektro- och informationsteknik

    Författare :Brenda Odhiambo; [2019]
    Nyckelord :Wireless power transfer; inductive coupling; Qi Specification; effect of metals; Technology and Engineering;

    Sammanfattning : Many new models of smartphones and small electronic devices are using their wireless charging feature as a key selling point. This is due to the convenience of cable-free charging as well as not requiring multiple power adapters for charging different devices. LÄS MER