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Crack localization and the interplay between stress enhancement and thermal noise
(Peer reviewed; Journal article, 2021)We study the competition between thermal fluctuations and stress enhancement in the failure process of a disordered system by using a local load sharing fiber bundle model. The thermal noise is introduced by defining a ... -
Creation of entangled atomic states by an analogue of the Dynamical Casimir effect
(Journal article; Peer reviewed, 2018)If the boundary conditions of the quantum vacuum are changed in time, quantum field theory predicts that real, observable particles can be created in the initially empty modes. Here, we realize this effect by changing the ... -
Creep failure in a threshold-activated dynamics: Role of temperature during a subcritical loading
(Peer reviewed; Journal article, 2020)Creep is a time-dependent deformation of solids at relatively low stresses, leading to the breakdown with time. Here we propose a simple model for creep failure of disordered solids in which temperature and stress are ... -
Criterion for Imminent Failure During Loading—Discrete Element Method Analysis
(Peer reviewed; Journal article, 2021)It has recently been reported that the equal load sharing fiber bundle model predicts the rate of change of the elastic energy stored in the bundle reaches its maximum before catastrophic failure occurs, making it a possible ... -
Critical Behaviour of the Local Load Sharing Fiber Bundle Model
(Master thesis, 2016)A generalised, history independent, Local Load Sharing Fiber Bundle Model, describing damage propagation in materials as failing fibers under under external load is studied. If the fibers' thresholds $t$ are drawn from an ... -
Critical properties of effective gauge theories for novel quantum fluids
(Doktoravhandlinger ved NTNU, 1503-8181; 2005:179, Doctoral thesis, 2005)Critical properties of U(1) symmetric gauge theories are studied in 2+1 dimensions, analytically through duality transformations and numerically through Monte Carlo simulations. Physical applications range from quantum ... -
Critical Properties of the Abelian Higgs Model.: A Monte Carlo Study
(Dr. ingeniøravhandling, 0809-103X; 2002:27, Doctoral thesis, 2002)We have studied various aspects of the critical properties of the Abelian Higgs model. The initial motivation to study this model is its relation to superconductivity, but the results extend beyond the realms of ... -
Critical temperature and tunneling spectroscopy of superconductor-ferromagnet hybrids with intrinsic Rashba-Dresselhaus spin-orbit coupling
(Journal article, 2015)We investigate theoretically how the proximity effect in superconductor/ferromagnet hybrid structures with intrinsic spin-orbit coupling manifests in two measurable quantities, namely the density of states and critical ... -
Criticality in Quantum Dissipative Systems
(Doktoravhandlinger ved NTNU, 1503-8181; 2012:192, Doctoral thesis, 2012)This thesis consists of five scientific papers in the field of condensed matter physics. In all papers we employ large scale Monte Carlo simulations to investigate quantum critical behavior in systems coupled to an ... -
Critically testing olivine-hosted putative martian biosignatures in the Yamato 000593 meteorite - Geobiological implications
(Journal article; Peer reviewed, 2019)On rocky planets such as Earth and Mars the serpentinization of olivine in ultramafic crust produces hydrogen that can act as a potential energy source for life. Direct evidence of fluid–rock interaction on Mars comes from ... -
Crystal defect studies of silicon for solar cells: scanning and transmission electron microscopy
(Master thesis, 2009) -
Crystal Phase Mapping by Scanning Precession Electron Diffraction and Machine Learning Decomposition
(Journal article; Peer reviewed, 2018)Analyzing the distribution of crystal phases is required to understand nanostructures. Conventional analysis in the transmission electron microscope (TEM) include acquiring dark-field (DF) images for each expected crystal ... -
Crystalline GaSb-core optical fibers with room-temperature photoluminescence
(Journal article; Peer reviewed, 2018)Glass-clad, GaSb-core fibers were drawn and subsequently laser annealed. The asdrawn fibers were found to be polycrystalline, possess Sb inclusions, and have oxide contamination concentrations of less than 3 at%. Melting ... -
Crystallographic relationships of T-/S-phase aggregates in an Al–Cu–Mg–Ag alloy
(Journal article; Peer reviewed, 2018)T-(Al20Cu2Mn3) phase dispersoids are important for limiting recovery and controlling grain growth in Al-Cu alloys. However, these dispersoids can also reduce precipitation hardening by acting as heterogeneous nucleation ... -
Cu atoms suppress misfit dislocations at the β″/Al interface in Al-Mg-Si alloys
(Journal article, 2016)The Cu interactions with the Al–Mg–Si alloy main hardening phase β″ are investigated in atomic scale, by using experimental and simulated high angle annular dark-field scanning transmission electron microscopy techniques ... -
Curious case of the maximum rigidity distribution of cosmic-ray accelerators
(Peer reviewed; Journal article, 2023)In many models, the sources of ultra-high-energy cosmic rays (UHECRs) are assumed to accelerate particles to the same maximum energy. Motivated by the fact that candidate astrophysical accelerators exhibit a vast diversity ... -
Current Control of Magnetism in Two-Dimensional Fe3GeTe2
(Journal article; Peer reviewed, 2019)The recent discovery of magnetism in two-dimensional van der Waals systems opens the door to discovering exciting physics. We investigate how a current can control the ferromagnetic properties of such materials. Using ... -
Current driven spin–orbit torque oscillator: ferromagnetic and antiferromagnetic coupling
(Peer reviewed; Journal article, 2016)We consider theoretically the impact of Rashba spin–orbit coupling on spin torque oscillators (STOs) in synthetic ferromagnets and antiferromagnets that have either a bulk multilayer or a thin film structure. The synthetic ... -
Current-Driven Dynamics of Magnetic Hopfions
(Journal article; Peer reviewed, 2019)opological magnetic textures have attracted considerable interest since they exhibit new properties and might be useful in information technology. Magnetic hopfions are three-dimensional (3D) spatial variations in the ... -
Current-driven skyrmion depinning in magnetic granular films
(Peer reviewed; Journal article, 2019)We consider current-driven motion of magnetic skyrmions in granular magnetic films. The study uses micromagnetic modeling and phenomenological analysis based on the Thiele formalism. Remarkably, the disorder enhances the ...