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 20 of 892 for “"Superconducting"”.
-
Nonequilibrium excitations in superconducting aluminum and high-temperature superconducting devices
… previously unmeasured non-equilibrium effect in superconducting aluminum. A charge imbalance, or charging of the normal fluid with respect to the superfluid, is generated by the interaction of an electric field and a supercurrent. We have shown that this effect does occur, however the measured …
-
Investigation of High-Temperature Superconducting Trapped Field Magnets in a Superconducting Motor
… cross-field demagnetisation in high-temperature superconducting (HTS) trapped field stacks (TFSs) within a partially superconducting machine, employing a finite element method (FEM)-based modelling approach. The key innovations presented in this work are: (1) a systematic methodology to …
-
Superconducting coplanar delay lines
Two 25 ns wideband HTS delay lines with a novel double-spiral meander line (DSML) structure are designed, fabricated and measured. One is based on the conventional coplanar waveguide (CPW), and the other based on a conductor-backed coplanar waveguide (CBCPW). Systematic design work is presented in …
-
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 …
-
Superconducting phase transitions in hybrid superconducting systems with ferromagnets and spin-orbit coupling
… systems through calculations of the superconducting phase transition (i.e., the critical temperature T_c and critical fields h_c1 and h_c2). Chapter 3 investigates a ferromagnetic (F) strip on a thin film superconductor (S) with interfacial Rashba SOC in the Ginzburg-Landau formalism. …
-
Investigation of superconducting and non-superconducting phases of Na₀Ì£₃CoO₂·1.3H₂0
… and properties of a previously unknown non-superconducting phase of Na₀Ì£₃CoO₂·1.3H₂0. This evidence includes magnetic susceptibility and x-ray scattering studies which suggest that the appearance of this phase is not due to underhydration and that a superconducting state can be restored via …
-
Microwave Response in Superconducting Nanowires
We fabricate superconducting wires using molecular templating technique to study their transport properties when exposed to microwave radiation (MW), at cryogenic temperatures. Our wires have a diameter on the order of the zero temperature coherence length, which makes them quasi-one-dimensional at …
-
Thermal Conductivity of Superconducting Niobium
Made available in DSpace on 2015-05-12T22:38:42Z (GMT). No. of bitstreams: 2 license.txt: 4848 bytes, checksum: 96035ab3f5e1c23cc7138a224ce498bd (MD5) 7121188.PDF: 3255906 bytes, checksum: 9f7c95d301c2a88a1787acfe6a7487ef (MD5) Previous issue date: 1971
-
Thermal conductivity of superconducting niobium
… dependence of the thermal conductivity of superconducting niobium have been measured in magnetic fields which ranged .. from zero to above the critical fields, and for temperatures which ranged from 0.31 K to above the transition temperature. Measurements were made on a single crystal …
-
Superconducting Transition-Edge Sensor Physics
… record-setting performance demonstrated by superconducting Transition Edge Sensors (TESs) and growing utilization of the technology, a theoretical model of the physics governing TES devices superconducting phase transition has proven elusive. Earlier attempts to describe TESs assumed them to …
-
Discrete superconducting vortex flow transistors
Thesis (M.S.)--Massachusetts Institute of Technology, Dept. of Electrical Engineering and Computer Science, 1994.
-
Scaling of Nanocryotron Superconducting Logic
… presents the design and characterization of a superconducting shift register based on nanocryotrons. Such a shift register has applications in nanocryotron circuit testing as well as integrated readout and memory for high count rate imagers based on superconducting nanowire single photon …
-
Engineering Noise-Protected Superconducting Qubits
… to achieve reliable quantum computation with superconducting qubits. One way to improve the qubit lifetime is to engineer the circuit design and the parameters to protect the qubit from environmental noise. Some of the noise-protected superconducting qubits have the potential to overcome the …
-
Critical temperatures of superconducting solders
… with a mechanical switch that can be kept at its superconducting stage may be able to speed up the charging/discharging process. A malleable superconductor would be needed for the current pending design of this switch. A superconducting solder with a critical temperature above 4.2K would be ideal. …
-
A design flux injector for NMR superconducting magnets : results of operation with superconducting insert cells
… the inner high-field region of a low temperature superconducting (LTS) magnet. Among the problems in the presently available HTS technology are splice resistance and index dissipation, which make it essentially impossible for HTS to operate in persistent mode. Unless operated in driven mode with a …
-
ELECTROSTATIC SEPARATION OF SUPERCONDUCTING PARTICLES FROM NON-SUPERCONDUCTING PARTICLES AND IMPROVEMENT IN FUEL ATOMIZATION BY ELECTRORHEOLOGY
… major topics: (1) Electrostatic Separation of Superconducting Particles from a Mixture of Non-Superconducting Particles. (2) Improvement in fuel atomization by Electrorheology. (1) Based on the basic science research, the interactions between electric field and superconductors, we have …
-
Magnesium Diboride Superconducting Devices and Circuits
… not discovered until 2001. It has the highest superconducting transition temperature of all the metallic superconductors at ~39 K at atmospheric pressure. MgB2 is also unique in that it has a two superconductive gaps, a pi gap at 2 meV and a sigma gap at 7.1 meV. There are a theoretical models …
-
Fermi Surface Calculations of Superconducting Compounds
In dieser Doktorarbeit wurde die elektronische Struktur von konventionellen und unkonventionellen Supraleitern untersucht. Das Ziel dieser Arbeit war es, die dHvA Parameter zu berechnen und mit experimentellen Daten zu vergleichen. Mit Hilfe des Bandstrukturprogrammes FPLO, welches auf der DFT …
-
FCS for superconducting quantum point contacts
… in recent years. In this thesis the FCS for superconducting quantum point contacts have been calculated. Such quantum point contacts frequently occur in modern microelectronic devices, which exploit the special features of superconductors. The FCS for normal metal-superconductor and …
Page 1 of 45