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 8 of 8 for “"Magnetic Insulator"”.
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Topological Transport Effects and Pure Spin Currents in Nanostructures
… to infer the properties of a multitude of magnetic systems. In turn, this allows us to push the understanding of transport phenomena in magnetic materials. The first part of this work is focused on the magnetoresistance observed in spin Hall active metals in contact with a magnetic …
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The Interplay of Magnetism and Topology in Topological Insulators
The conductive helical edge states in topological insulators (TIs) have been lauded over the last decade as a means towards the development of low-energy electronic and spintronic devices. Unfortunately, development of TI devices have been hampered by issues such as impurities and difficulty in …
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Picosecond Spin Seebeck Effect in Magnetic Insulators
… (SSE) refers to spin current generation in a magnetic insulator/non-magnetic metal heterostructure due to a thermal gradient and most SSE experiments typically use an electric current as heat source. This study uses Terahertz (THz) time-domain emission spectroscopy where a femtosecond laser …
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Topological Phases in Perovskite Iridates with Strong Spin-Orbit Coupling
… model. Thirdly, we propose that a topological insulator can exist in a two-dimensional single layer Iridium oxide superlattice under certain lattice distortions; a tight-binding model is constructed using the basis of an effective J eff=1/2 pseudo-spins. A topological magnetic insulator with …
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Optics and Optoelectronics of Atomically Thin Magnets and Semiconductors
… wide variety of physical properties ranging from insulators like hexagonal boron-nitride, to semiconductors such as MoS2 and superconductors (ie NbSe2) to name a few. These materials are of significant fundamental interest, since they offer the first opportunity to study physical phenomena in a …
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Nanometer-thick yttrium iron garnet film development and spintronics-related study
… iron garnet (Y3Fe5O12, YIG) materials for magnetic insulator-based spintronics studies. This interest derives from the fact that YIG materials have very low intrinsic damping. The development of YIG-based spintronics demands YIG films that have a thickness in the nanometer (nm) range and at …
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Investigation of magnetic interactions in topological insulators
Topological insulators are a category of phases in condensed matter with inverted conduction and valence bands, which is protected by time reversal symmetry. As a result, the bulk keeps insulating while the surface supports an exotic high-mobility spin-polarized electronic states. Introducing …
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Exploring linear and nonlinear electromagnetic responses in topological materials
… to examine the linear and nonlinear electromagnetic response properties in topological materials.Topological materials tend to produce unique transport signatures that point to the underlying topology of its electronic energy bands.Furthermore, given the recent experimental interest in …