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Emission of coherent THz magnons in an antiferromagnetic insulator triggered by ultrafast spin–phonon interactions
(Peer reviewed; Journal article, 2023)Antiferromagnetic materials have been proposed as new types of narrowband THz spintronic devices owing to their ultrafast spin dynamics. Manipulating coherently their spin dynamics, however, remains a key challenge that ... -
Emulsions in Polymeric Turbulence
(Master thesis, 2022)Rapporten introduserer grunnleggende teori for Newtonsk turbulens, med fokus på andre ordens strukturfunksjon for hastighet og energispektrum. Formalismen for turbulens blir så brukt på ferske resultater for turbulent ... -
En DFT analyse på kobber basert metallisk-organisk dekomponerings blekk
(Master thesis, 2020)En ny generasjon av kobber basert elektronisk blekk har blitt nylig utviklet som dekomponeres til metallisk kobber under varme. Blekkene er basert på kobber format komplekser i en +2 oksidasjonstall, som reduseres til en ... -
En EXAFS-studie av DFT-modellerte AuCu-nanopartikler: Cupiditas de SmAug
(Master thesis, 2014)En strukturstudie av AuCu-nanopartikler har blitt gjennomført ved hjelp av DFT og EXAFS. Det ble i alt undersøkt 18 DFT-modellerte AuCu-nanopartikler med størrelser fra 38 til 80 atomer og varierende støkiometrisk ... -
En studie av samspillet mellom YouTube-videoer og samarbeidslæring
(Master thesis, 2010)I denne oppgaven har jeg sett på hvordan bruk av YouTube-videoer i samspill medsamarbeidslæring kan benyttes i fysikkundervisningen, og hvilken betydning det kan ha for elevenes læringsutbytte. Jeg argumenterer for at ... -
Energy Considerations of Initiation of Fast Streamers in Cyclohexane
(Master thesis, 2015)The purpose of this study is to improve a model of streamer propagation in dielectric liquid by Hestad et al. at Sintef Energy Research, by considering the energy in an initiated second mode streamer. This is important, ... -
Energy Landscape of Alginate-Epimerase Interactions Assessed by Optical Tweezers and Atomic Force Microscopy
(Journal article, 2015)Mannuronan C-5 epimerases are a family of enzymes that catalyze epimerization of alginates at the polymer level. This group of enzymes thus enables the tailor-making of various alginate residue sequences to attain various ... -
Energy Metabolism Is Altered in Radioresistant Rectal Cancer
(Peer reviewed; Journal article, 2023)Resistance to neoadjuvant chemoradiation therapy is a significant clinical challenge in the management of rectal cancer. There is an unmet need to identify the underlying mechanisms of treatment resistance to enable the ... -
Energy spectra and scaling relations in numerical turbulence with laboratory and astrophysical applications
(Doktoravhandlinger ved NTNU, 1503-8181; 2004:163, Doctoral thesis, 2004)In this work we have focused on the statistical properties of turbulence. This has been done in two different settings; one with neutral gas (the first four papers) and the other with ionized gas (the last four papers). ... -
Engineered Surfaces for Redirection of Light
(Master thesis, 2011)It is of interest to construct windows that can spread the transmitted light in a specified manner. The Kirchhoff approximation in the geometrical optical limit in combination with a chosen general form of the window ... -
Engineering a vascular model based on microfluidics for studying microbubbles in an acoustic field
(Master thesis, 2018)A major challenge in cancer therapy is the poor and insufficient delivery to tumour sites which many chemotherapeutic drugs face. Ultrasound (US) mediated delivery based on cavitating microbubbles (MBs) has emerged as a ... -
Engineering Quantum States in δ-doped Semiconductors
(Master thesis, 2017)The effect of quantum confinement, creating a two-dimensional electron gas was studied using angle-resolved photoemission spectroscopy. This was done by creating phosphorus δ-layers in silicon, varying in thickness from ... -
Enhanced hydrophobicity of CeO2 thin films: Role of the morphology, adsorbed species and crystallography
(Peer reviewed; Journal article, 2023)In order to guarantee the long-term efficiency of hydrophobic materials in real-world situations, it is necessary that their surfaces are highly resistant to scratching, fouling and misting. Furthermore, for the specific ... -
Enhanced Mechanical Properties in 6082 Aluminum Alloy Processed by Cyclic Deformation
(Peer reviewed; Journal article, 2021)Aging heat treatment is the most commonly used strengthening method for Al–Mg–Si alloys since high-density precipitates will be formed to hinder the movement of dislocations. In the current work, room temperature cyclic ... -
Enhanced Spin Conductance of a Thin-Film Insulating Antiferromagnet
(Journal article; Peer reviewed, 2017)We investigate spin transport by thermally excited spin waves in an antiferromagnetic insulator. Starting from a stochastic Landau-Lifshitz-Gilbert phenomenology, we obtain the out-of-equilibrium spin-wave properties. In ... -
Enhancement and shape control of weak molecular absorption signal with chirped-pulse mid-IR lasers
(Chapter, 2013)Detection of weak narrowband absorption by molecular lines is usually a topic of linear-optical technology. In this paper we demonstrate nonlinear-optical enhancement and shape control of atmospheric absortion lines using ... -
Enhancement of proximity-induced superconductivity in a planar Ge hole gas
(Peer reviewed; Journal article, 2021)Hole gases in planar germanium can have high mobilities in combination with strong spin-orbit interaction and electrically tunable g factors, and are therefore emerging as a promising platform for creating hybrid ... -
Enhancement of superconductivity mediated by antiferromagnetic squeezed magnons
(Journal article; Peer reviewed, 2019)We theoretically investigate magnon-mediated superconductivity in a heterostructure consisting of a normal metal and a two-sublattice antiferromagnetic insulator. The attractive electron-electron pairing interaction is ... -
Ensemble averaged and single Particle Auger Lifetimes in Zincblende Structure Semiconductors
(Master thesis, 2013)In this master?s thesis, ensemble averaged and k-dependent Augerrecombination processes are studied using Monte Carlo integration. Effectsof introducing kp-overlap integrals, as opposed to constant overlap integrals, ... -
Ensemble distribution for immiscible two-phase flow in porous media
(Journal article, 2017)We construct an ensemble distribution to describe steady immiscible two-phase flow of two incompressible fluids in a porous medium. The system is found to be ergodic. The distribution is used to compute macroscopic flow ...