Department of Physics / Institutionen för fysik: Recent submissions
Now showing items 41-60 of 75
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Transport, Turbulence and Instabilities in Cosmic Magnetic Fields
(2014-09-05)This decade has seen a large number of space missions, which, alongside ground-based radio, optical and gamma-ray telescopes, have enabled a deep insight into the non-thermal astrophysical environments. Interstellar Medium ... -
Strongly non-linear magnetization dynamics in nano-structures: perturbations, multi-mode generation, and topological droplets
(2014-05-12)Spin torque oscillators (STOs) are magnetic nano-devices in which strongly non-linear magnetodynamic phenomena can be excited by current. In this thesis, we study some of these phenomena by means of micromagnetic simulations, ... -
Excited States in Negative Ions
(2014-05-07)This thesis covers experimental studies of atomic negative ions with the main goal of increasing our fundamental understanding of these fragile quantum systems. Comparisons of measurements and calculations have been used ... -
Modeling of radiative processes in organic scintillators
(2014-02-21)This thesis presents the development of a Monte Carlo calibration of a whole body counter (WBC), consisting of four large plastic (organic) scintillators, used for determine the body burden of gamma-emitting radionuclides. ... -
Teacher Change in relation to Professional Development in Entrepreneurial Learning
(2013-12-02)Abstract Compulsory school teachers’ perceptions and change in relation to Continuing Professional Development (CPD) in entrepreneurial learning are investigated in this thesis. The teacher level focus is based on evidence ... -
Periodized Thermal Greens Functions and Applications
(2013-08-30)This work describes a new formalism for Fermionic thermal Greens functions that are discretized in imaginary time. The discretization makes the thermal Greens function periodic in imaginary (Matsubara) frequency space and ... -
Natural science specialising in physics
(2013-08-30)A new class of liquid crystal materials has been recently discovered. These mate- rials are constituting of bent core (BC) molecules. Being initially only of scientific interest, now they attract the interest not only ... -
Magnetic Thin Films with Graded and Tilted Anisotropy for Spintronic Devices
(2013-05-10)In this thesis magnetic thin films with graded or tilted anisotropy are intensively studied for potential applications in spintronic devices. A continuum of stable remanent resistance states is realized in Co/Pd multilayers ... -
Correlations in low-dimensional quantum many-particle systems
(2013-05-08)This thesis concerns correlation effects in quantum many-particle systems in one and two dimensions. Such systems show many exotic non-Fermi liquid phenomena, which can be treated analytically using non-perturbative ... -
Electromechanical Phenomena in Superconducting and Normal Nanostructures
(2013-05-08)This thesis summarizes a series of theoretical studies on the electromechanical properties of nanostructures made of superconducting and/or metallic elements. The first part of the work is devoted to the analysis of the ... -
On the Control of Nematic Liquid Crystal Alignment
(2013-05-07)Liquid crystal displays (LCDs) are incorporated in a great variety of electronic devices such as laptops, mobile phones, TV sets, etc. The performance of LCDs depends strongly on the alignment of liquid crystal and therefore ... -
Advances in Holographic Optical Trapping
(2013-05-05)Holographic optical trapping (HOT) is a technique for non-invasive dynamic anipulation of multiple microscopic objects, which has been used for many applications in the life sciences during the past decade. The technique ... -
Embedded Measurement Systems
(2013-04-30)The subject of Embedded Measurement Systems (EMS) is the merging of embedded systems and electrical measurement systems. This indicates that EMSs are hardware-software systems dedicated to measuring one or a few physical ... -
Correlated Materials - Models & Methods
(2013-03-12)This thesis encompass a series of studies on methods and models for electron systems with local interactions, relevant for correlated materials. The first study focus on the canonical model for local correlation, the Hubbard ... -
Modelling late toxicity in hypofractionated radiation therapy
(2013-02-22)In hypofractionated radiation therapy (RT), the treatment is delivered by few fractions with high doses per fraction. This is in contrast to conventionally fractionated RT where the total dose is delivered in many fractions ... -
Non-linear Optical Microscopy and Spectroscopy for Biomedical Studies
(2012-11-21)This thesis is based on the application of non-linear optical microscopy and spectroscopy techniques within biomedical research. Non-linear optical microscopy gives the possibility of exciting fluorophores using near ... -
Interaction and disorder in helical conductors
(2012-09-28)Different effects from electron-electron interactions and disorder in helical and quasi-helical conductors are studied using bosonisation and renormalisation group methods. The combined effects of Rashba spin-orbit ... -
Self Oscillations and Cooling of Carbon Based NEMS Devices
(2012-04-10)We investigate the electromechanical properties of a number of system geometries featuring a doubly clamped Carbon Nanotube or Graphene sheet with a deflection sensitive resistance and an electronic feedback in the form ... -
Lärares formande av en yrkesidentitet relaterad till hållbar utveckling
(2011)Swedish schools are required to educate for sustainable development (ESD). The challenges for the teachers are demanding as the content is controversial and complex. This study focuses on exploring the different ways ...