Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 12 of 12 for “"nanomagnetism"”.
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Understanding nanomagnetism from all angles: Developments in magnetic electron tomography
This thesis aims to develop transmission electron microscopy (TEM) techniques to study magnetic nanomaterials in three dimensions (3D). At the nanoscale, magnetic materials exhibit various intriguing behaviours such as topological protection in skyrmions (which may be used in next-generation …
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Direct writing of three-dimensional nanostructures and their application in nanomagnetism
… This is particularly important in the field of nanomagnetism where the material properties are strongly dependent on its geometry and topology. Controlling these properties and expanding spintronic technologies to 3D has a great potential for applications in the future low-power nanoelectronic …
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Magnetism and interactions at the nanoscale: synthesis, characterization and applications
… This dissertation delves into the world of nanomagnetism, exploring various aspects of magnetic iron cobalt (Fe65Co35) structures in the form of nanocubes and nanochains. The research employs advanced techniques such as Quantum Design DynaCool Physical Property Measurement System (PPMS), …
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Thermal Effects on Spin Currents in Non-Local Metallic Spin Valves
… for both applied and fundamental research in nanomagnetism due to the unique ability to separate charge currents and spin currents. NLSVs may also prove essential for a new class of high-density hard disk read heads due to their favorable scalability. Recent studies have shown thermal effects …
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Pattern formation and magnetism in pulsed laser-induced self-organized nanostructures from single and bilayer metallic films
Self-organization via nanosecond pulsed laser melting of thin metal films is attractive as a reliable and low cost method to create surface metallic nanostructures. The potential applications of these resulting structures are related to their magnetic, optical, plasmonic, and magneto-optical …
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Study of Spin Configuration of Hexagonal Shaped Ferromagnetic Structures
This thesis work consists of two distinct parts: the set-up of a unique characterisation system and the study of spin configurations in hexagonal ferromagnetic structures. The characterisation system developed is able to perform in-situ magnetic imaging, structural modification and electrical …
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Magnetic Targeted Drug Delivery
Methods of guiding magnetic particles in a controlled fashion through the arterial system in vivo using external magnetic fields are explored. Included are discussions of applications, magnetic field properties needed to allow guiding based on particle characteristics, hemodynamic forces, the …
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Brillouin scattering investigation of nanomagnetic structures
Brillouin light scattering is employed to study the dynamical properties of arrays of vertical ferromagnetic nanowires and nanorings, which show great promise as high-density magnetic storage and sensor devices. Three closely related projects are reported: (1) observation of bulk magnon …
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Ground states in artificial spin ice
Artificial spin ice is a class of arrays of interacting ferromagnetic nanoislands that are used to experimentally model Ising spin systems. It has been successfully used to understand the behavior of frustrated spin systems, particularly the class of magnetic pyrochlore oxides known as spin ice. …
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Tuning Spin Currents with Ultrathin Heavy Metal Microstructure
All-metallic spintronic heterostructures have the ability to generate pure spin currents at low resistance-area products via spin-orbit coupling. Heavy metal/ferromagnet (HM/NM) bilayers are often used in this context to extract key spin-dependent parameters such as the spin Hall angle, 𝜃, and spin …
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Electric field effect on magnetic interface phenomena
L'abstract è presente nell'allegato / the abstract is in the attachment
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Estudo termodinâmico de gelos de spin em uma geometria do tipo malha
Esta dissertação Consiste no estudo de materiais denominados gelos de spin, os quais en- tre Várias propriedades exibem excitações magnéticas que se Comportam Como monopo- los magnéticos. Porém, estes monópolos surgem sempre aos pares e Com uma energia de ligação (string) entre eles que impedem sua …