Academic literature on the topic 'Niobium superconductor'

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Dissertations / Theses on the topic "Niobium superconductor"

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Parvaneh, Hamed. "Growth and characterisation of niobium/gadolinium superconductor-ferromagnet nanocomposites." Thesis, University of Cambridge, 2006. https://www.repository.cam.ac.uk/handle/1810/183639.

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Superconductivity and ferromagnetism are two antagonistic physical phenomena which their coexistence in a uniform material can be resolved only under extraordinary conditions. The reason for that is the phonon-mediated attraction energy between electrons which results in the formation of the so-called Cooper pairs, is usually smaller that the exchange (Zeeman) interaction between electrons which tend to align the electron spins. However, non-zero total momentum Cooper pairs can be accomplished even in the presence of an exchange field as surprisingly! predicted first by Fulde and Ferrel [1] an
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Magnée, Petrus Hubertus Cornelis. "Mesoscopic transport in superconductor - semiconductor structures." [S.l. : [Groningen] : s.n.] ; [University Library Groningen] [Host], 1996. http://irs.ub.rug.nl/ppn/14856769X.

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Ludlam, James Leslie. "Superconducting joints with rectangular cross section niobium-tin multifilamentary superconductor." Thesis, Massachusetts Institute of Technology, 1991. http://hdl.handle.net/1721.1/13269.

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Higgs, Thomas David Charles. "Magnetic structures and proximity effects in rare-earth/transition metal ferromagnetic and superconductor systems." Thesis, University of Cambridge, 2018. https://www.repository.cam.ac.uk/handle/1810/280118.

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The antiferromagnetic coupling between a rare-earth (RE) and a tran- sition metal (TM) ferromagnet can be exploited to engineer normal state and superconducting functional devices. RE/TM ferromagnetic multi- layers were previously used as spin-mixers to generate spin-triplet su- percurrents. This was possible due to magnetic inhomogeneity present in the devices, however the precise nature of the inhomogeneity was not understood. Here we present a comprehensive study of the Ni/Gd/Ni system using a powerful element-specific measurement technique: x-ray magnetic circular dichroism. In order to an
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Backs, Alexander [Verfasser], Peter [Akademischer Betreuer] Böni, Peter [Gutachter] Böni, and Blackburn [Gutachter] Elizabeth. "Vortex Matter of the Intertype Superconductor Niobium Studied by Neutron Imaging, Neutron Diffraction and Molecular Dynamics Simulations / Alexander Backs ; Gutachter: Peter Böni, Blackburn Elizabeth ; Betreuer: Peter Böni." München : Universitätsbibliothek der TU München, 2021. http://d-nb.info/1235664724/34.

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Bhatiya, Shobhit. "A15 stoichiometry and grain morphology in rod-in-tube and tube type Nb3SN strands; Influence of strand design, heat treatments and ternary additions." The Ohio State University, 2010. http://rave.ohiolink.edu/etdc/view?acc_num=osu1268231937.

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Saxey, David W. "A high-resolution superconducting pressure gauge and irreversible magnetic effects in Nb and NbTi wires." University of Western Australia. School of Physics, 2005. http://theses.library.uwa.edu.au/adt-WU2005.0007.

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A high resolution pressure gauge has been developed for use in thermodynamic measurements along the lambda line in liquid helium. The gauge was designed to operate at cryogenic temperatures and provide pressure measurements up to 30bar, with an accuracy of 3 × 10¯¹ºbar in a 1Hz bandwidth. Experiments reported here show the gauge to have met these specifications; at least for measurements close to zero pressure, at temperatures close to 4.5K. It is expected that operation at higher pressures, and at temperatures closer to the lambda transition, will result in similar or even improved performanc
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Oliveira, Tarciso Mesquita de. "Picos da magnetização em supercondutores do tipo II." [s.n.], 2005. http://repositorio.unicamp.br/jspui/handle/REPOSIP/278497.

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Orientador: Oscar Ferreira de Lima<br>Dissertação (mestrado) - Universidade Estadual de Campinas, Instituto de Fisica Gleb Wataglin<br>Made available in DSpace on 2018-09-24T18:20:24Z (GMT). No. of bitstreams: 1 Oliveira_TarcisoMesquitade_M.pdf: 3236428 bytes, checksum: f8799c6f4d4ac1a196ca499b0ad67efb (MD5) Previous issue date: 2005<br>Resumo: Nesta tese estudamos possíveis origens do Segundo Pico da Magnetização (SPM) em supercondutores de alta e baixa temperatura crítica, usando amostras monocristalinas de Bi2Sr2CaCu2O8+d e de Nb. Para estudar o SPM fizemos medidas de curvas de magnetizaç
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Dai, Zhenting. "Coherent and Dissipative Transport in Metallic Atomic-Size Contacts." Diss., Georgia Institute of Technology, 2006. http://hdl.handle.net/1853/19880.

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Thin-film niobium mechanically controlled break junctions and resistively shunted niobium mechanically-controlled break junctions were developed and successfully microfabricated. Using these devices, high-stability atomic size contacts were routinely produced and investigated both in the normal and superconducting states. Investigations of the two-level conductance fluctuations in the smallest contacts allowed the calculation of their specific atomic structure. Embedding resistive shunts close to the superconducting atomic-sized junctions affected the coherence of the electronic transport. Fin
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Keys, Simon Alastair. "Temperature and strain scaling laws for the critical current density in Nb(_3)Sn and Nb(_3)Al conductors in high magnetic fields." Thesis, Durham University, 2001. http://etheses.dur.ac.uk/3951/.

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Detailed, accurate measurements of critical current density and resistivity to determine the upper critical field have been made on a technological NbsAl conductor in magnetic fields up to 15 T, temperatures from 4.2 K up to the critical temperature and in the strain range from -1.8% to 0.7%. The uncertainty in temperature above 4.2 K was equivalent to ± 100 mK with a stability during the measurements of < 5 mK up to a limiting current of 80 A and a typical noise level of 1 µ Vm(^-1).When B(_c2){T,ε) is defined at 5%pn, 50%pn or 95%/%pn, an empirical relation is found where and an approximate
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