Search for dissertations about: "amorphous alloys"

Showing result 1 - 5 of 21 swedish dissertations containing the words amorphous alloys.

  1. 1. Uncovering Magnetic Order in Nanostructured Disordered Materials A Study of Amorphous Magnetic Layered Structures

    University dissertation from Uppsala : Uppsala Universitet

    Author : Panagiotis Korelis; Uppsala universitet.; [2011]
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; Amorphous Materials; Magnetism; Amorphous Magnetism; Magnetic Measurements; Thin Films; Multilayers; Thin Film Deposition; Sputtering; FeZr Alloys; AlZr Alloys; X-ray Diffraction; Rutherford Backscattering Spectrometry; Physics with spec. in Atomic; Molecular and Condensed Matter Physics; Fysik med inriktning mot atom- molekyl- och kondenserande materiens fysik;

    Abstract : The scope of this thesis is the study of the interplay between structure and magnetism in amorphous materials. The investigations focus on the growth of amorphous layers and the study of the influence of structural disorder and reduced physical extension on the magnetic properties of thin films and multilayers. READ MORE

  2. 2. Metallic Amorphous Thin Films and Heterostructures with Tunable Magnetic Properties

    University dissertation from Uppsala : Acta Universitatis Upsaliensis

    Author : Atieh Zamani; Uppsala universitet.; [2015]
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; Amorphous; Thin Film; Magnetic properties; FeZr alloys; Ion implantation; Physics with spec. in Atomic; Molecular and Condensed Matter Physics; Fysik med inriktning mot atom- molekyl- och kondenserande materiens fysik;

    Abstract : The primary focus of this thesis is to study the effect of doping on magnetic properties in amorphous Fe100−xZrx alloys. Samples with compositions of x = 7,11.6 and 12 at.% were implanted with different concentrations of H. READ MORE

  3. 3. Amorphous and crystalline functional materials from first principles

    University dissertation from Uppsala : Acta Universitatis Upsaliensis

    Author : Leyla Isaeva; Uppsala universitet.; [2015]
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; first-principles theory; lattice dynamics; phase transitions; amorphous materials; tribology; ultrafast magnetism;

    Abstract : This thesis deals with various functional materials from first-principles methods and is divided into two major parts according to the underlying atomic structure of the system under study. The first part of the thesis deals with the temperature-induced structural phase transitions in metallic  β'-AuZn and perovskite oxide LiOsO3. READ MORE

  4. 4. Magnetization dynamics of complex magnetic materials by atomistic spin dynamics simulations

    University dissertation from Uppsala : Acta Universitatis Upsaliensis

    Author : Raghuveer Chimata; Uppsala universitet.; [2017]
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; Ultrafast remagnetization; ultrafast dynamics; magnetism; multiferroics; amorphous alloys; DFT; spinels magnetostriction; Physics with spec. in Atomic; Molecular and Condensed Matter Physics; Fysik med inriktning mot atom- molekyl- och kondenserande materiens fysik;

    Abstract : In recent years, there has been an intense interest in understanding the microscopic mechanism of laser induced ultrafast magnetization dynamics in picosecond time scales. Magnetization switching on such a time scale has potential to be a significant boost for the data storage industry. READ MORE

  5. 5. X-ray Spectroscopic Studies of Materials for Nuclear Technology

    University dissertation from Uppsala : Acta Universitatis Upsaliensis

    Author : Johan Vegelius; Uppsala universitet.; [2011]
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; XAS; XES; RIXS; amorphous; DOS; spectroscopy; actinides; copper; uranium; plutonium;

    Abstract : X-ray spectroscopic experiments, including X-ray absorption spectroscopy (XAS), X-ray emission spectroscopy (XES) and resonant inelastic X-ray scattering (RIXS), were performed in a large energy range (60-9000 eV) on a variety of systems, probing different elements and orbitals. The systems can preferably be divided into three groups: Actinides, copper systems and amorphous materials. READ MORE