Browsing NTNU Open by Title
Now showing items 57039-57058 of 101886
-
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 ... -
Magnus Expansion in Gauge Theories
(Master thesis, 2022)Noen uttrykk for løsningen på en ordinær differensiallikning utledes ved hjelp av en metode som innebærer Taylor-rekkeutvikling av vektorfeltet som definerer differensiallikningen. En generalisering av et kjent resultat ... -
Magnus the Chess Robot
(Master thesis, 2014)The goal of this thesis was to create a low-cost chess-playing robot to help progress the field of small-scale robotics and make it more available for personal use. To achieve this, methods for moving pieces on a chessboard ... -
Magt & meninger: Pædagogiske værdiprofiler blandt personalet i danske børnehaver
(Journal article; Peer reviewed, 2015)The article presents a research work on possible correlations between childhood background and educational values in a group of 700 employees in 80 Danish kindergartens. If the staff's pedagogical work is indebted to the ... -
Maihaugens museumsbønder En oppgave om museumsbøndenes formidling av autentisk matproduksjon
(Bachelor thesis, 2021)I dag blir friluftsmuseet på Maihaugen driftet som en gård fra det gamle bondesamfunnet, uten tekniske hjelpemidler. I teksten undersøker jeg hva museumsbøndenes arbeid går ut på, og i hvilken grad de formidler autentisk ... -
MAIM: A Novel Island Based Evolutionary Classification Algorithm
(Master thesis, 2019)Immunsystemet er uten tvil et av naturens mest tilpasningsdyktige, distribuerte og selvorganiserende systemer. Det har egenskapen til å kunne gjenkjenne unormalheter, altså noe som avviker fra den vanlige regelen. Når ... -
MAIM: A Novel Island Based Evolutionary Classification Algorithm
(Master thesis, 2019)Immunsystemet er uten tvil et av naturens mest tilpasningsdyktige, distribuerte og selvorganiserende systemer. Det har egenskapen til å kunne gjenkjenne unormalheter, altså noe som avviker fra den vanlige regelen. Når ... -
Main aspects of deformation and rock support in Norwegian road tunnels
(Journal article; Peer reviewed, 2019)The general geology of Norway makes most of its tunnels to be constructed mainly in strong rock intersected by weakness zones of different sizes and characteristics. The Norwegian support tradition is, to the largest degree ... -
Main bearings in large offshore wind turbines: development trends, design and analysis requirements
(Journal article; Peer reviewed, 2018)This paper discusses analysis requirements for design and operation of main bearings in modern multi-megawatt offshore wind turbines, motivated by the industry's search for reliable and cost effective main bearing solutions ... -
Main glucose hepatic fluxes in healthy subjects predicted from a phenomenological-based model
(Peer reviewed; Journal article, 2022)Background: The liver has a unique role in blood glucose regulation in postprandial, postabsorptive, and fasting states. In the context of diabetes technology, current maximal models of glucose homeostasis lack a proper ... -
Maintaining Sustainable Water Services: Embedding infrastructure asset management in a medium Norwegian water utility - a demo case study approach
(Master thesis, 2013)The urban water infrastructure assets embodies a large portion of the total value of all public infrastructures, and is fundamental for good living conditions. The replacement value of the infrastructure in Norway alone ... -
Maintaining Voltage Stability: An Analysis of Voltage Stability Indicators and Mitigating Actions
(Master thesis, 2012)The society's dependency of a reliable power supply is increasing, and properly identifying the distance to the stability limits of the power system and avoiding large disturbances is thus becoming increasingly important. ...