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 9 of 9 for “"fluxoid"”.
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Investigation of half-quantized fluxoid states in Sr2RuO4 mesoscopic superconducting rings
… were used to observe transitions between fluxoid states. Our observation of half-integer transitions is consistent with the existence of HQVs in a spin-triplet superconductor. Stability of the half states with an in-plane magnetic field is explained by the spin polarization in consequence …
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Magnetic force microscopy studies of mesoscopic superconducting structures
… order parameter, such as vortices and fluxoid states in multiply connected structures, are often the key ingredients of these phenomena. This dissertation describes a new mode of magnetic force microscopy (Φ0-MFM) for investigating vortex and fluxoid sates in mesoscopic superconducting …
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Explorations of domain walls and half quantum vortices in unconventional superconductors
… to yield a discrete family of low-energy ""fluxoid"" states in which the superconducting order parameter winds around the annulus as it would around the line defect. Recently, evidence for half integer fluxoid states (the fluxoid analog of half quantum vortices) has been obtained in …
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Nuclear magnetic resonance studies of the organic superconductor kappa-(bisethylenedithiotetrathiafulvalene)(2) copper(nitrogen(cyanide)(2))bromine
… This was taken to be strong evidence that fluxoid motion caused the rapid relaxation and that intrinsic pinning of the fluxoids occurred for parallel magnetic fields.
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Superconducting thin film nanoelectronics
… as sensor amplification, logical processing, and fluxoid state sensing. In this thesis, I describe the development, characterization, and application of three novel superconducting nanoelectronic devices: the nTron, the yTron, and the current-controlled nanoSQUID. These devices derive their …
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Phase dynamics and magnetic field response of proximity-coupled superconductor arrays
… irrational cell area ratios from that due to iii fluxoid quantization over larger areas. The power-law dependence of the current-voltage characteristics as a function of temperature for the Penrose is generally consistent with the predictions for a KosterlitzThouless transition at zero applied …
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Precise magnetic control of the supercurrent and fluxoids in nanodevices: Memory effects and diode effects
… most important result is that we can change the fluxoid number simply by sending a bias current, without applying a magnetic field. Studying this system enhances our understanding of nanowires, which exhibit fundamentally different critical phase and magnetic field responses compared to Josephson …
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Some properties of the magnetic response of mesoscopic superconducting rings
This thesis deals with two relatively independent topics pertinent to the physics of mesoscopic multiply connected superconducting samples (rings). In the first Chapter we consider a phenomenon of the entanglement of the center-of-mass and internal degrees of freedom of the Cooper pair which takes …