Essays about: "ferromagnetic resonance"

Showing result 1 - 5 of 7 essays containing the words ferromagnetic resonance.

  1. 1. Out-of-plane Ferromagnetic Resonance (FMR) measurements on magnetic nanoparticle dispersions for biomedical sensor applications

    University essay from Uppsala universitet/Fasta tillståndets fysik

    Author : Markus Back; [2020]
    Keywords : Ferromagnetic; magnetic; resonance; FMR; EPR; nanoparticle; microwave; coplanar; waveguide; cavity; s-parameter; gilbert; damping; gyromagnetic; liquid; biosensor; landau; lifshits; spin; polymer; composites; engineering physics; teknisk fysik; magnetism; ferromagnetisk; vågledare; resonans; mikrovågsteknik; nanopartiklar;

    Abstract : In this master work, we investigated the feasibility of a magnetic resonance measurement technique using magnetic nanoparticle dispersions in both liquid and solid form. The implementation is realised as a coplanar waveguide operating in the frequency range of 0.5 - 20 GHz and an electromagnet producing a static magnetic field of strength up to 1. READ MORE

  3. 2. The Magnetic Characterization of Iron-Chrome nanoparticle

    University essay from Lunds universitet/Synkrotronljusfysik; Lunds universitet/Fysiska institutionen

    Author : Angga Virdian; [2018]
    Keywords : Nanomagnetism; Nanoparticle; Physics and Astronomy;

    Abstract : In this thesis, the intrinsic magnetic characteristic of 10 nm FeCr oxide nanoparticles is studied. The nanoparticles is produced using the method of Spark discharge generation. Scanning electron microscope (SEM) is used to characterize the size distribution and coverage of deposited particle. READ MORE

  4. 3. Micromagnetic simulations of magnetization dynamics in iron-palladium nanostructure arrays

    University essay from Uppsala universitet/Materialfysik

    Author : Agne Ciuciulkaite; [2016]
    Keywords : micromagnetic simulations; magnetization dynamics; iron-palladium circular islands; ferromagnetic resonance;

    Abstract : Previous investigations of FePd circular island arrays have shown the hysteresis-free switching from vortex to collinear magnetic state at high temperatures [1]. This raises interest in the exploration of the temperature and inter-island interaction effect on the magnetization dynamics in this kind of structures. READ MORE

  5. 4. Micromagnetic simulations for the investigation of magnetic vortex array dynamics

    University essay from Uppsala universitet/Materialfysik

    Author : Agne Ciuciulkaite; [2016]
    Keywords : micromagnetic simulations; ferromagnetic resonance; magnetic vortex; permalloy circular islands;

    Abstract : In this work the dynamics of permalloy circular magnetic islands of 225 nm radius and 10 nm thickness arranged into square lattices was investigated employing micromagnetic simulations.The simulations of the vortex magnetization loops and the ferromagnetic resonance (FMR) spectra were carried out using a free micromagnetics simulation software Mumax3. READ MORE

  6. 5. Flexible Time-Resolved Magneto-Optical Measurements

    University essay from Uppsala universitet/Materialfysik

    Author : Pier Silvio TIbaldi Tibaldi; [2016]
    Keywords : TR-MOKE; Kerr; magnetization dynamics; magneto-optical effect; Time-resolved magneto-optical Kerr effect;

    Abstract : We present a time-resolved Kerr microscope, capable of measuring the magnetization dynamics of samples grown on transparent, double-side-polished substrates.The magnetization is excited by a current pulse, using a coplanar waveguide placed beneath the samples. READ MORE