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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 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 ... -
Magnon Condensation of Magnetic Insulators
(Master thesis, 2023)Bose-Einstein kondensasjon er et forskningsfelt som har fått økt oppmerksomhet etter at Ketterle et al. og Cornell et al., i 1995, fremstilte et kondensat for første gang. Begge gruppene laget kondensatet av reelle ... -
Magnon decay theory of Gilbert damping in metallic antiferromagnets
(Peer reviewed; Journal article, 2020)Gilbert damping is a key property governing magnetization dynamics in ordered magnets. We present a theoretical study of intrinsic Gilbert damping induced by magnon decay in antiferromagnetic metals through s−d exchange ... -
Magnon drag in a metal–insulating antiferromagnet bilayer
(Peer reviewed; Journal article, 2022)We study a bilayer structure consisting of an antiferromagnetic insulator and a normal metal. An electron current is driven in the normal metal with direction parallel to the interface between the materials. Due to interfacial ... -
Magnon Excitations of a Dzyaloshinskii-Moriya Coupled Insulating 2D Antiferromagnetic Skyrmion
(Master thesis, 2018)Motivated by recent experimental progress in realizing novel antiferromagnetic phases with state-of-the-art characteristics for memory storage and information processing, we study the magnon excitation spectra and eigenmodes ... -
Magnon Spin Current Induced by Triplet Cooper Pair Supercurrents
(Peer reviewed; Journal article, 2021)At the interface between a ferromagnetic insulator and a superconductor there is a coupling between the spins of the two materials. We show that when a supercurrent carried by triplet Cooper pairs flows through the ... -
Magnon-Mediated Indirect Exciton Condensation through Antiferromagnetic Insulators
(Journal article; Peer reviewed, 2019)Electrons and holes residing on the opposing sides of an insulating barrier and experiencing an attractive Coulomb interaction can spontaneously form a coherent state known as an indirect exciton condensate. We study a ... -
Magnon-mediated superconductivity and other collective phenomena in heterostructures of magnets and conductors
(Doctoral theses at NTNU;2022:269, Doctoral thesis, 2022)Sammendrag: Superledning fra magnetisme Når ulike typer materialer kobles sammen, kan deres egenskaper bli påvirket av hverandre. Spesielt i nærheten av overflaten mellom to ulike materialer, kan nye ting skje. ... -
Magnon-mediated superconductivity on the surface of a topological insulator
(Journal article; Peer reviewed, 2020)We study superconductivity on the surface of a topological insulator, mediated by magnetic fluctuations in an adjacent ferromagnetic or antiferromagnetic insulator. Superconductivity can arise from effective interactions ... -
Magnon-Mediated Superconductivity: Investigating the Emergence of Strong Topological Superconductivity Mediated by Magnons in a Coplanar, Non-Collinear Magnet
(Master thesis, 2023)Denne masteroppgaven undersøker hvorvidt topologisk superledning kan oppstå i et todimensjonalt system bestående av et normalmetall og en magnet med koplanær spinnfase. Vi bygger videre på arbeidet til Mæland og Sudbø [1], ... -
Magnon-polarons in cubic collinear antiferromagnets
(Peer reviewed; Journal article, 2019)We present a theoretical study of excitations formed by hybridization between magnons and phonons—magnon-polarons—in antiferromagnets. We first outline a general approach to determining which magnon and phonon modes can ...