Search for dissertations about: "spintronics"

Showing result 21 - 25 of 58 swedish dissertations containing the word spintronics.

  1. 21. Strongly non-linear magnetization dynamics in nano-structures: perturbations, multi-mode generation, and topological droplets

    Author : Ezio Iacocca; Göteborgs universitet; Göteborgs universitet; Gothenburg University; []
    Keywords : Spin torque oscillators; Spintronics; Spintronics;

    Abstract : Spin torque oscillators (STOs) are magnetic nano-devices in which strongly non-linear magnetodynamic phenomena can be excited by current. In this thesis, we study some of these phenomena by means of micromagnetic simulations, analytical calculations, and electrical characterization. Three main subjects are discussed: 1. READ MORE

  2. 22. Single-Electron Tunneling Spectroscopy in Magnetic Nanoparticles and Molecular Magnets

    Author : Lukasz Michalak; Fasta tillståndets fysik; []
    Keywords : master equation; magnetic nanoparticles; spin accumulation; molecular magnets; TMR; tunneling magnetoresistance; F-SET; ferromagnetic single-electron transistor; single-electron tunneling; nanomagnetism; spintronics; Coulomb blockade;

    Abstract : This thesis deals with single-electron tunneling in transistor-like devices in which the central electrode is either a metal nanoparticle (possibly ferromagnetic) or a molecular magnet. The investigated systems split into two different categories, depending on the size of the central island. READ MORE

  3. 23. Spin Hall nano-oscillator arrays: towards GHz neuromorphics

    Author : Mohammad Zahedinejad; Göteborgs universitet; Göteborgs universitet; Gothenburg University; []
    Keywords : Spintronics; Neuromorphic computing; Spin Hall effect; Synchronization; Microwave oscillator;

    Abstract : .... READ MORE

  4. 24. Superdiffusive Spin Transport and Ultrafast Magnetization Dynamics : Femtosecond spin transport as the route to ultrafast spintronics

    Author : Marco Battiato; Olle Eriksson; Hardy Gross; Uppsala universitet; []
    Keywords : NATURAL SCIENCES; NATURVETENSKAP; NATURVETENSKAP; NATURAL SCIENCES; Ultrafast magnetisation dynamics; anomalous diffusion; femtosecond dynamics; magnetism; Materialvetenskap; Materials Science;

    Abstract : The debate over the origin of the ultrafast demagnetization has been intensively active for the past 16 years. Several microscopic mechanisms have been proposed but none has managed so far to provide direct and incontrovertible evidences of their validity. READ MORE

  5. 25. Development of Organic-Based Thin Film Magnets for Spintronics

    Author : Elin Carlegrim; Mats Fahlman; Ronald Österbacka; Linköpings universitet; []
    Keywords : NATURAL SCIENCES; NATURVETENSKAP;

    Abstract : In the growing field of spintronics, development of semiconducting magnets is a high priority. Organic-based molecular magnets are attractive candidates since their properties can be tailor-made by organic chemistry. Other advantages include low weight and low temperature processing. READ MORE