Дисертації з теми "Superconducting thin film"
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McCaughan, Adam Nykoruk. "Superconducting thin film nanoelectronics." Thesis, Massachusetts Institute of Technology, 2015. http://hdl.handle.net/1721.1/101576.
Повний текст джерелаCataloged from PDF version of thesis.
Includes bibliographical references (pages 163-171).
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 application, especially in the realms of sensing and amplification. With recent advances in electron-beam lithography, superconducting thin films can be patterned into geometries with feature sizes at or below the characteristic length scales of the superconducting state. By patterning 2D geometries with features smaller than these characteristic length scales, we were able to use nanoscale phenomena which occur in thin superconducting films to create superconducting devices which performed useful tasks such 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 functionality from the exploitation of nanoscale superconducting effects such as kinetic inductance, electrothermal suppression, and current-crowding. Patterning these devices from superconducting thin-films has allowed them to be integrated monolithically with each other and other thin-film superconducting devices such as the superconducting nanowire single-photon detector.
by Adam Nykoruk McCaughan.
Ph. D.
Banerjee, Archan. "Optimisation of superconducting thin film growth for next generation superconducting detector applications." Thesis, University of Glasgow, 2017. http://theses.gla.ac.uk/8573/.
Повний текст джерелаBeringer, Douglas. "Thin Film Approaches to The Srf Cavity Problem: Fabrication and Characterization of Superconducting Thin Films." W&M ScholarWorks, 2016. https://scholarworks.wm.edu/etd/1499449840.
Повний текст джерелаFarrar, Simon Richard. "Excimer laser ablation characterisation for superconducting thin film applications." Thesis, University of Hull, 1994. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.282366.
Повний текст джерелаYoshida, Yutaka, Yusuke Ichino, Masashi Miura, Yoshiaki Takai, Kaname Matsumoto, and Ataru Ichinose. "High critical current density in high field in Sm/sub 1+x/Ba/sub 2-x/Cu/sub 3/O/sub 6+y/ thin films." IEEE, 2005. http://hdl.handle.net/2237/6776.
Повний текст джерелаYoshida, Yutaka, Kimihiko Sudoh, Yusuke Ichino, Izumi Hirabayashi, Yoshiaki Takai, 隆. 吉田, and 祐亮 一野. "Growth mechanism and surface morphologies of Sm/sub 1+x/Ba/sub 2-x/Cu/sub 3/O/sub 6+y/ thin films." IEEE, 2003. http://hdl.handle.net/2237/6746.
Повний текст джерелаElfassy, Laurent Albert Isaac. "Josephson junctions in high temperature superconducting patterned thin film resonators." Thesis, University of Cambridge, 1998. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.624725.
Повний текст джерелаKumar, Dinesh. "Critical current and Lorentz force effects in superconducting thin films." Thesis, University of Cambridge, 1994. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.337985.
Повний текст джерелаRichardson, Kurt Antony. "The manufacture of high temperature superconducting tapes and films." Thesis, University of Southampton, 1996. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.242413.
Повний текст джерелаGuruswamy, Tejas. "Nonequilibrium behaviour and quasiparticle heating in thin film superconducting microwave resonators." Thesis, University of Cambridge, 2018. https://www.repository.cam.ac.uk/handle/1810/277214.
Повний текст джерелаRamezani-Namin, Mehrdad. "Optimization of glow discharge magnetron sputtering for deposition of high Tc superconducting thin films." Thesis, University of Southampton, 1996. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.243149.
Повний текст джерелаHutson, D. "The design, construction and operation of practical thin film superconducting quantum interference devices (SQUIDs)." Thesis, University of Strathclyde, 1987. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.382345.
Повний текст джерелаIchino, Yusuke, Yutaka Yoshida, Kouichi Inoue, Toshinori Ozaki, Yoshiaki Takai, Kaname Matsumoto, Masashi Mukaida, Ryusuke Kita, Ataru Ichinose, and Shigeru Horii. "Effect of BaZrO3 Addition and Film Growth on Superconducting Properties of (Nd,Eu,Gd)Ba2Cu3Oy Thin Films." IEEE, 2009. http://hdl.handle.net/2237/13894.
Повний текст джерелаIchino, Yusuke, Kimihiko Sudoh, Koji Miyachi, Yutaka Yoshida, Yoshiaki Takai, 祐亮 一野, and 隆. 吉田. "Orientation mechanism of REBa/sub 2/Cu/sub 3/O/sub y/ (RE = Nd, Sm, Gd, Y, Yb) thin films prepared by pulsed laser deposition." IEEE, 2003. http://hdl.handle.net/2237/6741.
Повний текст джерела尤志一 and Chi-yat Ben Yau. "Fabrication of superconducting YBa2Cu3Oy thin film on YSZ substrates with or without a Eu2CuO4 buffer layer." Thesis, The University of Hong Kong (Pokfulam, Hong Kong), 2000. http://hub.hku.hk/bib/B31225421.
Повний текст джерелаYau, Chi-yat Ben. "Fabrication of superconducting YBa2Cu3Oy thin film on YSZ substrates with or without a Eu2CuO4 buffer layer." Hong Kong : University of Hong Kong, 2000. http://sunzi.lib.hku.hk/hkuto/record.jsp?B22713402.
Повний текст джерелаSONG, YONG. "Electrical Transport Measurement of Niobium Thin Superconducting Film Above An Array of Magnetic Quantum Dots." University of Cincinnati / OhioLINK, 2008. http://rave.ohiolink.edu/etdc/view?acc_num=ucin1212102762.
Повний текст джерелаValente-Feliciano, Anne-Marie. "Development of SRF monolayer/multilayer thin film materials to increase the performance of SRF accelerating structures beyond bulk Nb." Thesis, Paris 11, 2014. http://www.theses.fr/2014PA112254/document.
Повний текст джерелаThe minimization of cost and energy consumption of future particle accelerators, both large and small, depends upon the development of new materials for the active surfaces of superconducting RF (SRF) accelerating structures. SRF properties are inherently a surface phenomenon as the RF only penetrates the London penetration depth λ, typically between 20 and 400 nm depending on the material. When other technological processes are optimized, the fundamental limit to the maximum supportable RF field amplitude is understood to be the field at which the magnetic flux first penetrates into the surface, Hc₁. Niobium, the material most exploited for SRF accelerator applications, has Hc₁~170 mT, which yields a maximum accelerating gradient of less than 50 MV/m. The greatest potential for dramatic new performance capabilities lies with methods and materials which deliberately produce the sub-micron-thick critical surface layer in a controlled way. In this context, two avenues are pursued for the use of SRF thin films as single layer superconductor or multilayer Superconductor-Insulator-Superconductor structures: Niobium on copper (Nb/Cu) technology for superconducting cavities has proven over the years to be a viable alternative to bulk niobium. However the deposition techniques used for cavities, mainly magnetron sputtering, have not yielded, so far, SRF surfaces suitable for high field performance. High quality films can be grown using methods of energetic condensation, such as Electron Cyclotron Resonance (ECR) Nb ion source in UHV which produce higher flux of ions with controllable incident angle and kinetic energy. The relationship between growth conditions, film microstructure and RF performance is studied. Nb films with unprecedented “bulk-like” properties are produced. The second approach is based on the proposition that a Superconductor/Insulator/Superconductor (S-I-S) multilayer film structure deposited on an Nb surface can achieve performance in excess of that of bulk Nb. Although, many higher-Tc superconducting compounds have Hc₁ lower than niobium, thin films of such compounds with a thickness (d) less than the penetration depth can exhibit an increase of the parallel Hc₁ thus delaying vortex entry. This overlayer provides magnetic screening of the underlying Nb which can then remain in the Meissner state at fields much higher than in bulk Nb. A proof of concept is developed based on NbTiN and AlN thin films. The growth of NbTiN and AlN films is studied and NbTiN-based multilayer structures deposited on Nb surfaces are characterized. The results from this work provide insight for the pursuit of major reductions in both capital and operating costs associated with future particle accelerators across the spectrum from low footprint compact machines to energy frontier facilities
Hoffmann, Axel F. "Periodic pinning in superconducting Nb thin films /." Diss., Connect to a 24 p. preview or request complete full text in PDF format. Access restricted to UC IP addresses, 1999. http://wwwlib.umi.com/cr/ucsd/fullcit?p9917952.
Повний текст джерелаGrigg, John Antony Hugh. "Superconductive Effects in Thin Cluster Films." Thesis, University of Canterbury. Department of Physics and Astronomy, 2012. http://hdl.handle.net/10092/10376.
Повний текст джерелаPizzol, P. "Superconductive thin films for RF applications." Thesis, University of Liverpool, 2018. http://livrepository.liverpool.ac.uk/3027993/.
Повний текст джерелаBurton, Matthew. "Superconducting Thin Films for The Enhancement of Superconducting Radio Frequency Accelerator Cavities." W&M ScholarWorks, 2017. https://scholarworks.wm.edu/etd/1530192378.
Повний текст джерелаBogorin, Daniela Florentina. "Superconducting Iridium Thin Films as Transition Edge Sensors." Scholarly Repository, 2008. http://scholarlyrepository.miami.edu/oa_dissertations/190.
Повний текст джерелаSatchell, Nathan David. "Hybrid superconducting/ferromagnetic thin films for super-spintronics." Thesis, University of Leeds, 2016. http://etheses.whiterose.ac.uk/15556/.
Повний текст джерелаSchneider, Christof Walter. "Inductive characterisation of thin superconducting films and bilayers." Thesis, University of Cambridge, 1994. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.337384.
Повний текст джерелаLai, H. C. "The deposition of high temperature superconducting thin films." Thesis, University of Oxford, 1992. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.317209.
Повний текст джерелаVernon-Parry, Karen Dorothy. "The microstructure and properties of superconducting thin films." Thesis, University of Oxford, 1990. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.280799.
Повний текст джерелаBramley, Annette. "Thallium-based superconducting thin films for microwave applications." Thesis, University of Oxford, 1997. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.364170.
Повний текст джерелаAbu, Bakar Mizarina. "Microwave properties of high temperature superconducting thin films." Thesis, University of Birmingham, 2002. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.289384.
Повний текст джерелаAlani, Ahmed. "Preparation and properties of ceramic superconducting thin films." Thesis, Liverpool John Moores University, 1994. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.261443.
Повний текст джерелаLee, Hu Jong. "Two dimensional phase transitions in superconducting thin films /." The Ohio State University, 1985. http://rave.ohiolink.edu/etdc/view?acc_num=osu1487261919112954.
Повний текст джерелаThiede, David Anthony 1965. "Optical response in high temperature superconducting thin films." Thesis, The University of Arizona, 1990. http://hdl.handle.net/10150/278027.
Повний текст джерелаHummert, Stephanie Maria. "Magneto-Optical Imaging of Superconducting MgB2 Thin Films." W&M ScholarWorks, 2007. https://scholarworks.wm.edu/etd/1539626854.
Повний текст джерелаGrira, Sarra. "Microstructure, texture and superconductive properties of High Temperature Superconducting "HTS" oxides : yBCO thin films and bulk NBCO and YBCO." Thesis, Metz, 2009. http://www.theses.fr/2009METZ005S/document.
Повний текст джерелаThe aim of this work is the study of crystallographic texture and microstructure in connection with the superconducting properties (Tc and Jc) of High Temperature Superconducting (HTS) materials: YBCO and NBCO. Microstructure is studied by X-Ray Diffraction (XRD) and Electron backscatter Diffraction (EBSD). The Determination of critical temperature (Tc) and critical current density (Jc) are made with Superconducting Quantum Interference Device (SQUID) magnetometer or Physical Properties Measurement System (PPMS). The first part of this work investigates the crystallographic textures of the YBCO film by using EBSD in order to deduce the epitaxial relationship between the superconducting layer and the buffer layer. This thin film is made up of three successive deposits (among which 300 nm of YBCO), used in fault current limiters for electrical engineering applications. The second part presents the study of NdBa2Cu3O7-d (NBCO) and YBCO bulks prepared by various techniques. The effect of silver doping of YBCO has been studied on samples prepared by the Melt Textured Growth (MTG) technique under low oxygen partial pressure. The doping up to a given amount of silver enhances the microstructure and the critical current density. A comparison of the physical and structural characteristics between NBCO oxygenated exsitu and YBCO oxygenated in-situ, prepared by MTG under high magnetic field has been made. Zone-melted NBCO samples textured by zone melting method oxygenated respectively in-situ and ex-situ have been studied. These samples exhibit the same texture with the occurrence of twins for the NBCO oxygenated ex-situ
Cuadra-Solís, Pedro-de-Jesús. "Vortex Dynamics in Superconducting Thin Films under Microwave Fields." Doctoral thesis, Universitat de Barcelona, 2015. http://hdl.handle.net/10803/348552.
Повний текст джерелаL’objectiu d’aquesta tesi és estudiar la dinàmica de vòrtexs en diverses capes primes superconductores de tipus-2. En particular, explorem la resposta del moment magnètic en temps real a camps continus i polsats de microones. A més, estudiem els efectes de commensurabilitat mitjançant mesures de susceptibilitat magnètica en presència de camps de microones, i fent servir també espectrometria de reflexió de microones. Les mostres utilitzades en aquesta tesis són mostres de capes primes superconductores fetes de LaSrCuO, Pb amb una formació periòdica micro-forats o antidots i MgB2. Les mesures dels moments magnètics, de la magnetització en funció del temps i de la susceptibilitat magnètica es van realitzar amb un magnetòmetre MPMS basat en un dispositiu rf-SQUID. Per realitzar mesures de microones a baixes temperatures, es va dissenyar una sonda formada per un cable coaxial semi-rígid el qual acaba en una bobina de múltiples voltes amb la mostra localitzada al seu nucli (CS). Per caracteritzar l’estructura ressonant formada pel CS, s’ha proposat un model teòric basat en el ressonador helicoïdal. L’estudi de la dinàmica de vòrtexs sota l’escombrat de freqüència es va dur a terme en les tres mostres esmentades anteriorment. La relaxació monòtona és interrompuda per la presència d’irregularitats en forma de salts, pics negatius, ondulacions i petits passos. Aquestes anomalies apareixen a cert valors de la freqüència de microones i a diferents valors de les variables termodinàmiques (temperatura i camp magnètic continu) i dels paràmetres d’excitació de microones (potència i freqüència). La presència d’irregularitats en la resposta del moment magnètic en funció de la freqüència apareix determinada per la freqüència ressonant del CS. Altres aspectes que poden afavorir l’aparició d’aquestes irregularitats són la geometria de la capa fina i la contribució dels camps elèctrics i magnètics de microones. Aquests últims resulten significatius a la vora de la regió mostra-bobina i poden ajudar a activar inestabilitats termo-electromagnètiques dels vòrtexs. Particularment, la contribució del camp elèctric pot facilitar el desenvolupament d’aquesta mena d’inestabilitat en condicions adiabàtiques. El registre de la variació temporal de la magnetització sota la influència d’un pols de microones es va dur a terme en las mostres LaSrCuO i MgB2. Les corbes d’evolució temporal de la variació de la magnetització mostren clarament un règim de ràpida difusió dels vòrtexs. Aquest règims existeixen dins d’un marge de valors del camp magnètic continu, la temperatura, i la durada del pols. A més, aquestes corbes presenten valors de màxima difusió en funció d’aquests mateixos paràmetres. La presència d’aquestes inestabilitats disparades pels pols sembla que resulten de la contribució dels camps elèctrics i magnètics de microones i de la geometria de capa prima. Les mesures dels components de la susceptibilitat magnètica en funció del camp magnètic continu irradiat amb diferents valors de potència i freqüència de microones mostren els característics efectes de commensurabilitat per a múltiples enters i fraccionaris dels camps de coincidència (matching). Les corbes a diferents valors de freqüència i potència mostra que l’augment de qualsevol d’aquest dos paràmetres resulta en la reducció de l’apantallament i l’increment de la dissipació. Aquest efecte va ser confirmat realitzant mesures de les components de la susceptibilitat magnètica en funció de la potència als diferents valors de la freqüència de microones. Les corbes del mòdul del coeficient de reflexió de microones en funció del camp magnètic continu a una potència i freqüència de microones fixes, mesurades a diferents valors de temperatura, mostren clarament els efectes de commensurabilitat. L’empremta d’aquest efecte es mostra en forma de pics a valors enters i fraccionaris dels camps de coincidència. L’observació dels pics a les corbes del coeficient de reflexió apareix com a resultat de la contribució de la dinàmica de vòrtexs al senyal reflectit als camps de coincidència. La presència d’aquest pics es pot explicar considerant els conceptes de la conductivitat complexa del model de dos fluids, la longitud de penetració de London i les forces que descriuen la dinàmica de vòrtexs en l’equació de balanç fenomenològic. Les limitacions tèrmiques de la sonda experimental han estat testades fent mesures del coeficient de reflexió en funció del camp magnètic continu a diferents valors de la potència de microones, per a valors fixos de temperatura.
Shapoval, Tetyana. "Local imaging of magnetic flux in superconducting thin films." Doctoral thesis, Saechsische Landesbibliothek- Staats- und Universitaetsbibliothek Dresden, 2010. http://nbn-resolving.de/urn:nbn:de:bsz:14-qucosa-27206.
Повний текст джерелаShimozawa, Masaaki. "Superconducting properties of heavy fermion thin films and superlattices." 京都大学 (Kyoto University), 2014. http://hdl.handle.net/2433/188463.
Повний текст джерелаDew, Steven K. "Preparation and characterization of high temperature superconducting thin films." Thesis, University of British Columbia, 1989. http://hdl.handle.net/2429/27834.
Повний текст джерелаScience, Faculty of
Physics and Astronomy, Department of
Graduate
Zhang, Ying Zi. "Magneto-electrical properties of Bi-2201 superconducting thin films." Doctoral thesis, Universite Libre de Bruxelles, 2000. http://hdl.handle.net/2013/ULB-DIPOT:oai:dipot.ulb.ac.be:2013/211752.
Повний текст джерелаZhao, Yue. "Fabrication and characterization of superconducting PLD MgB2 thin films." Access electronically, 2005. http://www.library.uow.edu.au/adt-NWU/public/adt-NWU20060719.121046/index.html.
Повний текст джерелаIssa, Almoutaz. "Laser ablation, deposition of high temperature superconducting thin films." Thesis, University of Hull, 1991. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.384805.
Повний текст джерелаShapoval, Tetyana. "Local imaging of magnetic flux in superconducting thin films." Doctoral thesis, Leibniz-Institut für Festkörper- und Werkstoffforschung Dresden, 2009. https://tud.qucosa.de/id/qucosa%3A25239.
Повний текст джерелаMiranda, Felix Antonio. "Microwave response of high transition temperature superconducting thin films." Case Western Reserve University School of Graduate Studies / OhioLINK, 1991. http://rave.ohiolink.edu/etdc/view?acc_num=case1055533862.
Повний текст джерелаPullan, Penelope Anne. "Flux pinning in yttrium barium copper oxide superconducting thin films." Thesis, University of Cambridge, 1994. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.320038.
Повний текст джерелаChern, Jin-Dong. "Optical and microwave responses of high temperature superconducting thin films." Thesis, University of Oxford, 1995. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.282502.
Повний текст джерелаSakeek, Hazem Falah Hashem. "High Tâ†c superconducting thin films by laser ablation technique." Thesis, Queen's University Belfast, 1991. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.334640.
Повний текст джерелаCampion, Richard. "An investigation into superconducting thin films : (103/013) oriented YBCO." Thesis, University of Nottingham, 1998. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.262960.
Повний текст джерелаScott, Kenneth. "The pulsed laser deposition of high temperature superconducting thin films." Thesis, University of Cambridge, 1992. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.240068.
Повний текст джерелаVemulakonda, Padma Prasuna S. "Comparative Characterization of Superconducting Thin Films Fabricated by Different Techniques." Wright State University / OhioLINK, 2007. http://rave.ohiolink.edu/etdc/view?acc_num=wright1176576035.
Повний текст джерелаTashiro, Hidenori. "Time-resolved infrared studies of superconducting molybdenum-germanium thin films." [Gainesville, Fla.] : University of Florida, 2004. http://purl.fcla.edu/fcla/etd/UFE0008001.
Повний текст джерела