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Magnetic vortex dynamics in interacting micromagnets
(Master thesis, 2015)We have studied magnetic vortex oscillations in circular LSMO (lanthanum strontium manganite) disks by micromagnetic simulations. The simulations were performed using the MuMax3 software developed at the DyNaMat group ... -
Magnetically Enhanced Mechanical Stability and Super-Size Effects in Self-Assembled Superstructures of Nanocubes
(Journal article; Peer reviewed, 2019)Artificial materials from the self‐assembly of magnetic nanoparticles exhibit extraordinary collective properties; however, to date, the contribution of nanoscale magnetism to the mechanical properties of this class of ... -
Magnetisk Resonans og Multippel Sklerose - 3- og 7 tesla, diagnose og sykdomsovervåking av multippel sklerose: en sammenligning med 1,5 tesla.
(Bachelor thesis, 2012)NORSK: Innledning: Magnetisk resonans (MR) får stadig en større rolle til diagnose og overvåking av multippel sklerose (MS). I denne besvarelsen ser man nærmere på om høyfelts (3 tesla) og ultra-høyfelt (7 tesla) MR er ... -
Magnetism at Depth: A View from an Ancient Continental Subduction and Collision Zone
(Journal article; Peer reviewed, 2018)Recent sophisticated global data compilations and magnetic surveys have been used to investigate the nature of magnetization in the lower crust and upper mantle. Two approaches to constraining magnetizations are developed, ... -
Magnetization Dissipation in Bulk Ferromagnets and Ferromagnetic Quantum Dots
(Master thesis, 2014)We study the magnetization dynamics of a nano-scale ferromagnet. We show that the phenomenological Landau-Lifschitz-Gilbert predicts a damped precession of the magnetization. The ferromagnet is coupled to two large reservoirs ... -
Magnetization dynamics and Majorana fermions in ferromagnetic Josephson junctions along the quantum spin Hall edge
(Journal article; Peer reviewed, 2011)We investigate the interplay between ferromagnetic and superconducting order at the edge of a quantum spin Hall insulator. Using complementary analytical and self-consistent numerical approaches, we study a ferromagnetic ... -
Magnetization Dynamics and Spinsupercurrents in Superconductingand Multiferroic Systems
(Doctoral thesis at NTNU;2016:5, Doctoral thesis, 2016)This thesis presents the research findings from three articles which have been published or submitted for publication. In the first article, we study the magnetization dynamics and anomalous supercurrent that can arise ... -
Magnetization dynamics in ferromagnetic, antiferromagnetic and superconducting systems
(Doctoral theses at NTNU;2021:197, Doctoral thesis, 2021)The electron spin is an intrinsic property of the electron, just as its charge. Its spin is binary of nature, and is therefore well suited for encoding 0’s and 1’s in computers. The technology aiming to utilize the electron ... -
Magnetization dynamics in nanostructures
(Doctoral theses at NTNU;2016:360, Doctoral thesis, 2016)Summary of thesis: Understanding the properties of magnetic structures when confined to nanoscale dimensions is of both fundamental interest, as well as of importance for the development of modern electronics technology. ... -
Magnetization dynamics of a ferromagnet embedded in a Josephson junction with a spin-orbit coupled element
(Master thesis, 2018)We investigate the free energy of Andreev bound states (ABS) in a Josephson junction containing a ferromagnet and an element where broken inversion symmetry produces Rashba spin-orbit coupling. Applying an extended ... -
Magnetization of exsolution intergrowths of hematite and ilmenite: Mineral chemistry, phase relations, and magnetic properties of hemo-ilmenite ores with micron- to nanometer-scale lamellae from Allard Lake, Quebec
(Journal article; Peer reviewed, 2007)[1] Hemo‐ilmenite ores from Allard Lake, Quebec, were first studied over 50 years ago. Interest was renewed in these coarsely exsolved oxides, based on the theory of lamellar magnetism as an explanation for the high and ... -
Magnetization reorientation due to the superconducting transition in heavy-metal heterostructures
(Journal article; Peer reviewed, 2019)Recent theoretical and experimental work has demonstrated how the superconducting critical temperature (Tc) can be modified by rotating the magnetization of a single homogeneous ferromagnet proximity-coupled to the ... -
Magneto-dynamic properties of complex oxide—La0.7Sr0.3MnO3/SrTiO3— heterostructure interface
(Journal article; Peer reviewed, 2019)We have studied the interface magnetodynamic properties of La0.7Sr0.3MnO3/SrTiO3 (111) heterostructures by Ferromagnetic resonance spectroscopy (FMR). In addition to the bulk FMR mode, the measurements indicate a mode ... -
Magneto-dynamic properties of thin films and interfaces
(Doctoral theses at NTNU;2020:278, Doctoral thesis, 2020)Magnonics is a developing branch in the field of condensed matter physics with the potential to fulfill the future demand for miniaturized, fast, and energy-efficient spintronics devices. This thesis explores both a novel ... -
Magnetodynamic properties of dipole-coupled 1D magnonic crystals
(Journal article, 2021)Magnonic crystals are magnetic metamaterials, that provide a promising way to manipulate magnetodynamic properties by controlling the geometry of the patterned structures. Here, we study the magnetodynamic properties of ... -
Magnetoelastic properties of multiferroic hexagonal ErMnO<inf>3</inf>
(Journal article; Peer reviewed, 2022) -
Magnetoelectric force microscopy on antiferromagnetic 180 degree domains in Cr2O3
(Journal article; Peer reviewed, 2017)Magnetoelectric force microscopy (MeFM) is characterized as methodical tool for the investigation of antiferromagnetic domain states, in particular of the 180 ∘ variety. As reference compound for this investigation we use ... -
Magnetoelectric inversion of domain patterns
(Journal article; Peer reviewed, 2018)The inversion of inhomogeneous physical states has great technological importance; for example, active noise reduction relies on the emission of an inverted sound wave that interferes destructively with the noise of the ... -
Magnetron Sputtering High-Entropy Alloy Coatings: A Mini-Review
(Peer reviewed; Journal article, 2022)Surface coatings can enhance the substrate material’s properties and increase its lifetime. HEA-based materials have been extensively investigated as coating materials due to their superior hardness, excellent oxidation ... -
Magnitude Adversarial Spectrum Search-based Black-box Attack against Image Classification
(Master thesis, 2022)De siste årene har forskning vist at dype nevrale nettverk som brukes i bildeklassifiseringssystemer er sårbare mot fiendtlige angrep. I denne oppgaven utformer vi et umålrettet søkeeffektivt beslutningsbasert svart-boks ...