Browsing Institutt for fysikk by Title
Now showing items 2001-2020 of 2667
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Scalable Breast Cancer Simulations - A Stochastic, Hybrid Cellular Automaton Model for Precision Medicine
(Master thesis, 2023)Matematisk modellering og simulering er en lovende tilnærming til persontilpasset kreftmedisin. Å sette sammen diskrete celle-baserte modeller med kontinuerlige modeller til en hybrid, cellulær automata (CA) er en kraftfull ... -
Scalar wave scattering from two-dimensional, randomly rough surfaces
(Master thesis, 2011)We study scalar waves scattered from self-affine and Gaussian correlated surfaces. The simulations are performed using rigorous simulation of the integral equations derived from the Helmholtz equation, describing a scalar ... -
Scanning Precession Electron Diffraction and What We Get Out of Such Data in Studies of Aluminium Alloys
(Peer reviewed; Journal article, 2022) -
Scanning precession electron diffraction data analysis approaches for phase mapping of precipitates in aluminium alloys
(Peer reviewed; Journal article, 2023)Mapping the spatial distribution of crystal phases with nm-scale spatial resolution is an important characterisation task in studies of multi-phase materials. One popular approach is to use scanning precession electron ... -
Scanning precession electron diffraction data analysis of in-situ precipitate evolution in an Al-Mg-Si-Cu alloy
(Master thesis, 2023)Materialet studert in denne masteroppgaven er en Al-Mg-Si-Cu (6xxx) aluminiumlegering. Precipitatene som dannes i denne legeringen under utherding bestemmer mange av materialets mekansike egenskaper, inkludert styrke. Å ... -
Scanning Precession Electron Diffraction of Ferroelectric Polycrystalline h-ErMnO3
(Master thesis, 2023)Ferroelektriske domenevegger har nylig fått mye oppmerksomhet for deres potensiale innenfor nye 2D funksjonelle datalagrings og beregningssystemer. Den elektriske ledningsevnen ved ladde domenevegger kan endre seg på grunn ... -
Scanning Precession Electron Diffraction Study of 2xxx Series Aluminium Alloys Exhibiting Several Coexisting Strengthening Phases
(Master thesis, 2016)Throughout this thesis, scanning precession electron diffraction is applied to heat-treated Al-Cu-Li and Al-Mg-Cu-Ag alloys, shedding light on the distribution of phases present and the complex interplay between these ... -
Scanning Precession Electron Diffraction Study of Hybrid Precipitates in a 6xxx Series Aluminium Alloy
(Journal article; Peer reviewed, 2017)Obtaining reliable and statistical assessment of nanoscale precipitates to link the microstructure with material properties is a primary objective of transmission electron microscopy (TEM) studies of agehardenable aluminium ... -
Scanning Precession Electron Diffraction Template Matching for Automated Phase Mapping of Precipitates in 6xxx Aluminium Alloys
(Master thesis, 2020)Aluminiumslegeringer er viktige i et teknologisk perspektiv. I Al-Mg-Si-(Cu) (6xxx serien) er de mekaniske egenskapene bestemt av presipitatfaser dannet etter termomekanisk behandling. Denne studien er en analyse av ... -
Scanning Precession Electron Diffraction to aid Aluminum Alloy Development
(Peer reviewed; Journal article, 2019) -
Scanning transmission electron microscopy studies of precipitation in Al-Mg-Ge alloys
(Doktoravhandlinger ved NTNU, 1503-8181; 2011:234, Doctoral thesis, 2011)Precipitation in three Al-Mg-Ge(-Si-Cu) alloys has been investigated using transmission electron microscopy. The alloy compositions were chosen to be similar to previously studied Al-Mg-Si(-Cu) alloys to facilitate direct ... -
Scanning tunneling microscopy based point-contact measurements of nanoscale magnetic systems
(Doktoravhandlinger ved NTNU, 1503-8181; 2010:178, Doctoral thesis, 2010)In this thesis, the method of scanning tunneling microscopy (STM) based pointcontacts is presented together with measurements on nanonscale magnetic systems. The method allows point-contacts to be positioned with nm lateral ... -
Scanning X-ray ScatteringStudies of Mechanically Processed Polymers
(Doktoravhandlinger ved NTNU, 1503-8181; 2013:324, Doctoral thesis, 2013)Employing raster-scanning small- and wide-angle X-ray scattering (SAXS and WAXS), morphological variations in weakly scattering polymers have been mapped. These techniques inherently yield information on multiple length ... -
(Scanning) Transmission Electron Microscopy Studies of Grain Boundary Segregation relevant to Intergranular Corrosion in Al-Mg-Si-Cu Alloys
(Doctoral thesis at NTNU;2015:23, Doctoral thesis, 2015)The effect of the alloy composition on the susceptibility to intergranular corrosion in Al-Mg-Si-Cu alloys has been investigated by Transmission Electron Microscopy. The main focus of this thesis has been the effect of ... -
Scattering amplitudes of massive Nambu-Goldstone bosons
(Journal article; Peer reviewed, 2018)Massive Nambu-Goldstone (mNG) bosons are quasiparticles the gap of which is determined exactly by symmetry. They appear whenever a symmetry is broken spontaneously in the ground state of a quantum many-body system and at ... -
Scattering of Electromagnetic Waves from Randomly Rough Surfaces with Skewed Height Distributions
(Master thesis, 2014)Research on the scattering of electromagnetic waves from rough surfaces has greatly advanced in the past decades through the access to rigorous numerical simulations. However, most of the research has focused on surfaces ... -
Scattering of light from weaklyrough surfaces
(Doktoravhandlinger ved NTNU, 1503-8181; 2013:47, Doctoral thesis, 2013)A formalism is introduced for the non-perturbative, purely numerical, solution of the reduced Rayleigh equation for the scattering of light from two-dimensional penetrable rough surfaces. In the papers included in this ... -
Scattering theory of transport through disordered magnets
(Journal article; Peer reviewed, 2019)We present a scattering theory of transport through noncollinear disordered magnetic insulators. For concreteness, we study and compare the random field model (RFM) and the random anisotropy model (RAM). The RFM and RAM ... -
Schrödinger-Poisson and nonequilibrium Green's function methods applied to layered semiconductor devices
(Master thesis, 2018)In this work, electron transport through layered semiconductor heterostructure devices in the nanometer dimension are simulated. Because these devices have shrunk in the last decades, it is no longer sufficient to utilize ... -
Schwinger boson study of superconductivity mediated by antiferromagnetic spin fluctuations
(Peer reviewed; Journal article, 2020)We study superconductivity in a normal metal, arising from effective electron-electron interactions mediated by spin fluctuations in a neighboring antiferromagnetic insulator. Introducing a frustrating next-nearest neighbor ...