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.
Results
Showing 1 to 9 of 9 for “"Nernst effect"”.
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Topological Transport Effects and Pure Spin Currents in Nanostructures
Magnetoresistive effects are powerful tools for studying the intricate structure of solid state electronic systems, and have many applications in our current information technology. In particular, the electronic system reflects the crystal symmetry and the orbital structure of the atoms of a given …
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Quantum Transport in Topological Phases of Matter
… First, I introduce a novel type of Hall effect, called Magnus Hall effect, that allows one to probe Berry curvature in ballistic, time-reversal invariant systems that break inversion symmetry. Next, I present a detailed characterization of extrinsic Nernst effect in Dirac and Weyl …
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Spin Currents in Organic Semiconductors
… at ferromagnetic resonance due to increase in effective Gilbert damping by spin pumping from a ferromagnetic substrate into an adjacent non-magnetic semiconductor allows us to quantify the spin-mixing conductance. This technique is employed to demonstrate spin injection from a ferromagnetic …
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Heat, Charge and Spin Transport of Thin Film Nanostructures
… used for detection of thermally induced effects in a wide variety of materials. We can accurately and precisely produce in-plane thermal gradients in these membranes, allowing for thin film measurements on 2-D structures. First, we look at thermoelectric enhancements of doped …
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Thermal Effects on Spin Currents in Non-Local Metallic Spin Valves
… scalability. Recent studies have shown thermal effects created by high current densities play a significant role in the response of NLSVs. These thermal effects also provide the opportunity to create a pure spin current from thermal gradients via a mechanism call the spin dependent Seebeck …
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Spectroscopy of Topological Materials and their Technological Applications
… and large Berry curvature-induced anomalous Nernst effect. We describe measurements of nonlinear Hall effects in these materials which highlight their possible use in energy harvesting and terahertz applications. We also describe ideas of using topological materials as future post-copper …
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Inhomogeneous 1H NMR spin-lattice relaxation in the organic superconductor κ-(BEDT-TTF)2-Cu[N(CN)2]Br
… interest since the observation of an anomalous Nernst signal by Nam et al in 2007 [51]. A similar effect was seen earlier by Ong’s group in some of the high-temperature cuprate superconductors by [78,84]. This is interpreted to be evidence of a picture of superconductivity in which the resistive …
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Electric and thermoelectric properties of antiferromagnetic metals
… and thermoelectric measurements could serve as effective readout mechanisms of AFM order. In addition to the readout methods, we identified materials that provide large readout signals linked to their magnetic order. First, I used anisotropic magnetoresistance (AMR) to probe the Néel vector …
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Thermoelectric transport in rare-earth compounds
The focus of this thesis lies on the thermoelectric transport properties of rare-earth compounds containing Ce, Eu, and Yb. These systems have been investigated either to study fundamental problems or to evaluate their potential for thermoelectric applications.