Browsing Institutt for fysikk by Issue Date
Now showing items 781-800 of 2680
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Band-edge modification and mid-infrared absorption of co-deposited FexZn1-xS thin films
(Journal article; Peer reviewed, 2015)The bandgap of iron-doped ZnS has been reported by others to change significantly under the addition of a few atomic percent of iron, which would have significant implications for solar energy. Here, thin films of FexZn1-xS ... -
Cosmic Rays from Pair-Instability Supernova Remnants
(Master thesis, 2015)Pair-instability supernovae are the most energetic thermonuclear explosions in the Universe, up to 100 times more energetic than type Ia supernovae. Around redshift z > 6 approximately one out of ten supernovae was a ... -
High-current-density electropolishing (HDEP) of AISI 316L (EN 1.4404) stainless steel
(Journal article; Peer reviewed, 2015)The paper presents new XPS results of surface layers formed after electrochemical polishing of AISI 316L stainless steel at high current density (HDEP) of 1000 A/dm2 (EP1000) versus a standard electropolishing (EP50) process ... -
Intracellular Localization of Polymeric Nanoparticles and the Effect of Encapsulated Drug in vitro
(Master thesis, 2015)Chemotherapy could be greatly improved if drug carriers could deliver the chemotherapeutic agents specifically to the cancer cells. SINTEF Materials and Chemistry have developed a novel, multimodal polymeric nanoparticle ... -
SEM/EDX, XPS, corrosion and surface roughness characterization of AISI 316L SS after electrochemical treatment in concentrated HNO3
(Journal article; Peer reviewed, 2015)In the paper there is described the AISI 316L stainless steel surface obtained after electrochemical treatment in concentrated HNO3. It was characterized by roughness parameters, corrosion protection behaviour and chemical ... -
General boundary conditions for quasiclassical theory of superconductivity in the diffusive limit: Application to strongly spin-polarized systems
(Journal article; Peer reviewed, 2015)Boundary conditions in quasiclassical theory of superconductivity are of crucial importance for describing proximity effects in heterostructures between different materials. Although they have been derived for the ballistic ... -
Quantitative 3D X-ray Imaging of Densification, Delamination and Fracture in a Micro-Composite under Compression
(Journal article; Peer reviewed, 2015)Phase-contrast three-dimensional tomograms showing in unprecedented detail the mechanical response of a micro-composite subjected to a mechanical compression test are reported. The X-ray ptychography images reveal the ... -
Approximating Haze in Reflection - Approximate expressions for two-dimensional randomly rough surfaces
(Master thesis, 2015)We give a definition of haze in reflection from two-dimensional surfaces and study this quantity for Gaussian randomly rough surfaces. A simplified model of light scattering, assuming a scalar incident plane wave, the ... -
Interplay Between Supercurrent and Magnetization in Josephson Junctions
(Master thesis, 2015)The interplay between ferromagnetic and superconducting order in hybrid structures has in recent years attracted considerable interest due to the rich quantum physics that emerges in such systems in addition to their ... -
ReleQuant - improving teaching and learning in quantum physics through educational design research
(Journal article; Peer reviewed, 2015)Quantum physics and relativity are demanding for teachers and students, but have the potential for students to experience physics as fascinating and meaningful. Project ReleQuant engaged in educational design research to ... -
Iron oxide nanocrystals clustered in oil-in-water nanoemulsions: Preparation, characterization, and transverse relaxivities
(Master thesis, 2015)Iron oxide nanocrystals (IONCs) have attracted extensive interest due to their high magnetization that efficiently decreases the transverse relaxation times of water protons. The increase in their transverse relaxivities ... -
Quantifying the influence of the stratosphere on the mesosphere and lower thermasphere
(Doctoral thesis at NTNU;2015:22, Doctoral thesis, 2015)In this thesis, the influence of the major modes of stratospheric variability - the seasonal cycle and sudden stratospheric warmings (SSWs) in the extratropics, and the quasi-biennial oscillation (QBO) in the equatorial ... -
Solute-vacancy clustering in Al-Mg-Si alloys studied by muon spin relaxation technique
(Journal article; Peer reviewed, 2015)Zero-field muon spin relaxation experiments were carried out with Al-1.6%Mg2Si, Al-0.5%Mg, and Al-0.5%Si alloys. Observed relaxation spectra were compared with the calculated relaxation functions based on the Monte Carlo ... -
High-Resolution Large Time-Step Schemes for Hyperbolic Conservation Laws
(Master thesis, 2015)This thesis is concerned with numerical methods for solving hyperbolic conservation laws. A generalization of large time-step schemes (LTSS) to high resolution is presented. The generalization is based on the previous work ... -
Thermal Conductivity of A-site Cation-Deficient La-Substituted SrTiO3 Produced by Spark Plasma Sintering
(Journal article; Peer reviewed, 2015)During the last decade oxide-based thermoelectric materials have received increased attention due to their high stability and thermal robustness at high temperatures as well as the availability and nontoxic nature of a ... -
Intercalation Phenomena of Carbon Dioxide, Water or Ions in Smectite Clay
(Doctoral thesis at NTNU;2015:319, Doctoral thesis, 2015)Smectites, or swelling clays, are layered porous materials based on two-dimensional stacks of inorganic layers. The non-equivalent substitutions of atoms generate a negative charge on each layer surface which is balanced ... -
Signatures of the Transition between Topologically and Magnetically Ordered Ground States in the Schwinger-Boson Mean Field Theory of Frustrated Quantum Antiferromagnets - An analysis of the triangular lattice Heisenberg model with nearest and next nearest neighbour interactions
(Master thesis, 2015)We present three different methods of finding the critical spin value $S_c$ of the quantum phase transition between the spin liquid and the Néel order phase on the mean field triangular Heisenberg antiferromagnet at $T=0$K. ... -
Effects of Nanopillar Arrays on Cell Motility - A Study of Cell-Nanotopography Interactions
(Master thesis, 2015)The interplay between cells and engineered high-aspect ratio nanos- tructures is emerging as an interesting and promising field within life sciences. Specific cell responses arise as a result of interactions with these ... -
Superconducting spintronics
(Journal article; Peer reviewed, 2015)Traditional studies that combine spintronics and superconductivity have mainly focused on the injection of spin-polarized quasiparticles into superconducting materials. However, a complete synergy between superconducting ... -
Projektbaserad labundervisning inom grundläggande fysik för civilingenjörsstudenter
(Peer reviewed; Journal article, 2015)Vi presenterar resultat från en pågående omläggning av laborationerna i fysik för civilingenjörsstudenter till en projektbaserad arbetsform baserad på enkla försök med tydliga ingenjörsbetonade uppgifter. Studenternas svar ...