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Showing 1 to 20 of 21 for “"superconducting thin films"”.
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Local imaging of magnetic flux in superconducting thin films
… of magnetic flux line (vortex) distribution in superconducting thin films and their pinning by natural and artificial defects have been performed using low-temperature magnetic force microscopy (LT-MFM). Taken a 100 nm thin NbN film as an example, the depinning of vortices from natural defects …
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Electronic thermal conductivity of superconducting thin films containing paramagnetic impurities
Submitted by William Weathers (weathrs2@illinois.edu) on 2012-03-21T20:38:52Z No. of bitstreams: 1 1971_bjerkaas.pdf: 3579705 bytes, checksum: bdc1cee92aaddbf582b4b80dcabe9b90 (MD5)
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Fluctuation contributions to the heat capacity of superconducting thin films
… superconductor between its normal and superconducting states. The heat capacity and electrical resistivity have been measured for a series of amorphous Bismuth-Antimony films of various thicknesses. Mean field theories predict a discontinuous jump in heat capacity at the transition, and …
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The specific heat and resistivity of several amorphous superconducting thin films
Submitted by William Weathers (weathrs2@illinois.edu) on 2012-04-22T19:18:17Z No. of bitstreams: 1 1975_griffin.pdf: 2072464 bytes, checksum: 00b0a10df7e56b214fe9e8ae942ebb12 (MD5)
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Spin-orbit and magnetic proximity layers on Pauli limited superconducting thin films
Thesis (Ph. D.)--Massachusetts Institute of Technology, Dept. of Physics, 1988.
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Composition analysis of high-Tc superconducting thin films by quantitative x-ray fluorescence
… is presented for determining the composition of thin films containing the elements Bi, Sr, Br, Cu, and Ca. Quantitative x-ray fluorescence (XRF) consisting of radioactive sources (secondary foil excitor 241Am-Mo source and 55Pe source), a Si(Li) detector, and a multichannel analyzer were …
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A device for experimental observation of flux vortices trapped in superconducting thin films
Thesis (M.S.)--Massachusetts Institute of Technology, Dept. of Electrical Engineering and Computer Science, 1983.
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Novel process and apparatus design for metalorganic chemical vapor deposition (MOCVD) of superconducting thin films
… are capable of producing very high quality YBCO superconducting films, but their deposition rates are too slow to be commercially viable; liquidsource MOCVD systems can be precisely controlled, but the solvents they require tend to kill superconducting oxides; and solid-source MOCVD systems …
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A technique for the measurement of the far-infrared radiative properties of metal and superconducting thin films
Thesis (Ph. D.)--Massachusetts Institute of Technology, Dept. of Mechanical Engineering, 1997.
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Superconducting thin film nanoelectronics
Superconducting devices have found application in a diverse set of fields due to their unique properties which cannot be reproduced in normal materials. Although many of these devices rely on the properties of bulk superconductors, superconducting devices based on thin films are finding increasing …
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Growth, fabrication, and measurement of superconducting barium(1-x) potassium bismuth oxygen(3) thin films and devices
… of $\rm Ba\sb{1-x}K\sb{x}BiO\sb3$ (BKBO) superconducting thin films and thin film devices. Interest in BKBO has been concerned with both fundamental questions concerning its mechanism of superconductivity and potential applications in superconductor devices. $\rm Ba\sb{1-x}K\sb{x}BiO\sb3$ …
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Growth and characterisation of thin film superconductors on oxides, silicon and silicides
High Tc thin film superconductors are of great interest because of their potential applications, particularly in the microelectronics field. A successful superconductor microelectronic technology depends both on the ability to grow good quality superconducting thin films, and the need to …
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Vortex distributions and dynamics in superconductors near surface steps and sample edges studied by scanning SQUID microscopy and critical current measurements
… distribution of vortices upon cooling into the superconducting state in an applied magnetic field. The edge of a sample acts as a barrier to vortex entry into the superconductor and can have a substantial effect on the transport properties of vortices. We have used a Scanning SQUID Microscope …
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Fabrication and Characterization of Superconducting Metamaterial Resonators
<p>Superconducting circuits operated at low temperatures have led to rapid advances in quantum information processing as well as quantum optics in the microwave regime. Engineered quantum systems with a dense spectrum of modes coupled to artificial atoms, or qubits, formed from superconducting …
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Ultrafast Machining of High Temperature Superconducting Nanostructures for Novel Mesoscale Physics
… such as antennas and sensors, patterning of the superconducting thin films is a necessity. Among the different patterning techniques, including lithography, mechanical scribing, and focussed ion beam, laser machining of YBCO has been continuously studied since 1988 due to its design flexibility …
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Nonequilibrium behaviour and quasiparticle heating in thin film superconducting microwave resonators
… and numerical models of supercon- ducting thin-film microwave resonators. Superconducting resonators are used in a variety of applications, one of which is as kinetic inductance detectors (KIDs). KIDs are ultra-low noise, highly sensitive, multiplexable detectors, with uses in a wide …
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Josephson Junctions and Devices fabricated by Focused Electron Beam Irradiation
The irradiation of high Tc superconducting thin films with a focused electron beam, such as that obtained in a scanning transmission electron microscope (STEM), can result in the formation of a Josephson junction. The conditions required for the formation of these Josephson junctions in YBa2Cu3O7-d …
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Enhancement of superconductivity in Magnesium Diboride nano-structures
… The recent development in the growth of thin films and grains at the nanoscale has allowed to measure in certain materials critical temperatures that differ from the bulk values. At the same time these results have motivated theoretical studies that try to reproduce them using …
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Electron Thermal Conductivity of Thin Superconducting Films in Metallic Contact - The Proximity Effect
Submitted by Jesse Garrison (jagarris@illinois.edu) on 2011-11-14T19:58:24Z No. of bitstreams: 1 1973_migliori.pdf: 3086672 bytes, checksum: 49a1a634745ce02616ae5ebc6271e20b (MD5)
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Transmission of far infrared radiation through thin films of superconducting amorphous bismuth and gallium
… the far infrared radiation transmitted through a thin film in the superconducting state to that transmitted through it in the normal state has been measured for several samples of amorphous bismuth and gallium. The transition temperature Tc of each film was also measured. Thicknesses were …
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