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Einstein Gravity with Non-minimally Coupled Scalar Fields
(Master thesis, 2018)A Huggins term has been introduced to the Hilbert-Einstein model and its effect on the scale factor, a scalar field and Hubble parameter has been studied numerically. By comparing the result of a non-zero and a zero coupling ... -
Elastic Full Waveform Inversion of Synthetic Data: Marmousi2 Model Test Study
(Master thesis, 2014)Full waveform inversion (FWI) is a computationally extensive technique used to obtain estimates of subsurface rock parameters from seismic data. Initial models are iteratively improved by fitting forward modeled data to ... -
Electric and magnetic signatures of boundary states in topological insulators and superconductors
(Doctoral theses at NTNU;2017:271, Doctoral thesis, 2017)This thesis is based on original research that was carried out in the field of topological phases in quantum condensed matter physics. The results have been published in five papers in Physical Review B, which form the ... -
Electric Control of Skyrmion Dynamics and Spin Torque Oscillators in Magnetic Materials with Inversion Asymmetry
(Master thesis, 2016)In this thesis the skyrmion velocity in the presence of spin-transfer torques, Rashba spin-orbit coupling and a constant electric field gradient is derived analytically based on a collective coordinate approach in the ... -
Electric control of superconducting transition through a spin-orbit coupled interface
(Journal article; Peer reviewed, 2016)We demonstrate theoretically all-electric control of the superconducting transition temperature using a device comprised of a conventional superconductor, a ferromagnetic insulator, and semiconducting layers with intrinsic ... -
Electric field control of magnon-induced magnetization dynamics in multiferroics
(Journal article; Peer reviewed, 2016)We consider theoretically the effect of an inhomogeneous magnetoelectric coupling on the magnon-induced dynamics of a ferromagnet. The magnon-mediated magnetoelectric torque affects both the homogeneous magnetization and ... -
Electric field nematic alignment of fluorohectorite clay particles in oligomeric matrices
(Journal article, 2013)We study the behavior of fluorohectorite synthetic clay particles dispersed in paraffin wax. We report wide-angle x-ray scattering related to electric-field-induced alignment of the embedded clay particles. The development ... -
Electric stress-induced slip lines in jammed particle monolayers
(Peer reviewed; Journal article, 2016)Drops fully covered by particles, so called Pickering emulsion drops, are used to stabilize emulsions and are ideal templates for producing particles and advanced capsules. Recent studies show how electrohydrodynamic ... -
Electric-field-induced annihilation of localized gap defect states in amorphous phase-change memory materials
(Peer reviewed; Journal article, 2022)Structural relaxation of amorphous phase-change-memory materials has been attributed to defect-state annihilation from the band gap, leading to a time-dependent drift in the electrical resistance, which hinders the development ... -
Electric-field-induced structuring and rheological properties of kaolinite and halloysite
(Journal article, 2013)Electric-field-induced structuring of kaolinite and halloysite particles was studied in respect to their electrorheological (ER) response in silicone oil and in paraffin dispersions. The structural and morphological ... -
Electric-stress-induced Slip Lines in Jammed Particle Monolayers
(Journal article; Peer reviewed, 2016)Drops fully covered by particles, so called Pickering emulsion drops, are used to stabilize emulsions and are ideal templates for producing particles and advanced capsules. Recent studies show how electrohydrodynamic ... -
Electrical and thermal stability of Al-Cu welds: Performance benchmarking of the hybrid metal extrusion and bonding process
(Peer reviewed; Journal article, 2022)Advances in joining processes for aluminum and copper are sought after to facilitate the greater adoption of aluminum in electrical applications. Aluminum's chemical affinity to copper causes the joining and lifetime of ... -
Electrical Bioimpedance Based Heart Monitoring System
(Master thesis, 2016)There is a great need for monitoring devices in the intensive care unit during, and after, cardiac surgery to be able to detect anomalies at an early stage. The techniques used today are good, but limited in di erent ways. ... -
Electrical Characterization of Si and SiGe Semiconductor-core Optical Fibers.
(Master thesis, 2019)The optoelectronic properties of semiconductors in a fiber waveguide form make semiconductor core fibers a promising platform for many applications including infrared transmission, fiber detectors and nonlinear optics. In ... -
Electrical Characterization of Silicon Cores from Glass-Cladded Fibres
(Master thesis, 2014)Semiconductor core fibres represent an emerging technology with potential applications in many areas, including photovoltaics and optical transmission. Recent advances in fibre manufacturing techniques has allowed long, ... -
Electrical Excitation of Water Drops in Oil
(Master thesis, 2015)Water drops in oil are excited by the use of electric fields. This thesis looks at the behavior of water drops subjected to different fields. These fields vary in shape and strength. The motivation behind is separation of ... -
Electrically driven Bose-Einstein condensation of magnons in antiferromagnets
(Journal article; Peer reviewed, 2017)We explore routes to realize electrically driven Bose-Einstein condensation of magnons in insulating antiferromagnets. Even in insulating antiferromagnets, the localized spins can strongly couple to itinerant spins in ... -
Electro-absorption of silicene and bilayer graphene quantum dots
(Journal article; Peer reviewed, 2016)We study numerically the optical properties of low-buckled silicene and AB-stacked bilayer graphene quantum dots subjected to an external electric field, which is normal to their surface. Within the tight-binding model, ... -
Electro-hydrodynamic propulsion of counter-rotating Pickering drops
(Journal article; Peer reviewed, 2016)Insulating particles or drops suspended in carrier liquids may start to rotate with a constant frequency when subjected to a uniform DC electric field. This is known as the Quincke rotation electro-hydrodynamic instability. ... -
Electro-optical properties of phoshorene quantum dots
(Journal article; Peer reviewed, 2017)We study electronic and optical properties of single layer phosphorene quantum dots with various shapes, sizes, and edge types (including disordered edges) subjected to an external electric field normal to the structure ...