Bibliografie tematiche / High critical temperature superconductor

Letteratura scientifica selezionata sul tema "High critical temperature superconductor"

Autore: Grafiati
Pubblicato: 8 giugno 2024

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Articoli di riviste sul tema "High critical temperature superconductor":

1

Zhang, Ling-Yun, Jia-Tih Lin, Bo-Zang Li e Fu-Cho Pu. "Thermal Properties of High Temperature Superconductors: Soliton Statistics Approach". Modern Physics Letters B 11, n. 04 (10 febbraio 1997): 149–54. http://dx.doi.org/10.1142/s0217984997000207.

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We develop a soliton statistics approach to discuss the lattice effect of high temperature superconductor in the Davydov model on the basis of the bisoliton idea. We prove that lattice displacement in the Davydov model satisfies ϕ4 field form. Critical temperature of high temperature superconductor is studied from statistics of lattice kink. We have shown that the lattice effect is pronounced for thermal properties of high temperature superconductors. Comparision between theoretical and experimental results are good agreement for LaSrCuO and YBaCuO superconductor materials.
2

Jin, C.-Q., S.-C. Li, J.-L. Zhu, F.-Y. Li, Z.-X. Liu e R.-C. Yu. "High Critical Current Density of a MgB2 Bulk Superconductor High-pressure Synthesized Directly from the Elements". Journal of Materials Research 17, n. 3 (marzo 2002): 525–27. http://dx.doi.org/10.1557/jmr.2002.0073.

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We report the property studies of a MgB2 superconductor with high critical current density. The MgB2 superconductor was readily fabricated through a direct high-pressure synthesis of the respective elements. The obtained high-density MgB2 undergoes a sharp superconducting transition at 39 K. The bulk critical current density (Jc) of the sample was calculated on the basis of Bean's critical state model, and rather high critical current densities over a wide temperature range were obtained in comparison with the ambient prepared samples. The results highlight that high-pressure sintering would be a promising way to produce and search for this kind of intermetallic boride and the related superconductors.
3

Bigansolli, Antonio Renato, Tessie Gouvêa da Cruz, Francisco Romário de Souza Machado e Durval Rodrigues Jr. "Characterization of Bi2212 Superconductor Bulk Samples by Digital Image Processing". Advanced Materials Research 975 (luglio 2014): 128–33. http://dx.doi.org/10.4028/www.scientific.net/amr.975.128.

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The use of superconductors of high critical temperatures in applied superconductivity leads to higher operation temperatures and economy of cryogenic fluids. High temperature superconductor materials exhibits limited transport properties due to grain boundary weak-links and anisotropy on the critical currents. The texturing development in these superconductors decreases in an efficient way the number of high-angle grain boundaries, increasing the values of critical current densities (Jc). In this research the size grain distribution characterization of Bi2212 superconductor bulk samples heat treated under the influence of an applied external magnetic field of 5T was carried out combining processing and images analysis obtained by SEM and statistical methodologies. The objective is to investigate influence of an external magnetic field applied during the heat treatment profiles on the texturing of Bi2Sr2CaCu2O8+δ (Bi2212) bulk by using complementary analytical techniques.
4

M.E., Emetere, Awojoyogbe O.B., Uno U.E., Isah K.U., Sanni E.S. e Akinyemi M.L. "How Reliable is the Cuprates System to Recent Technology?" International Journal of Electrical and Computer Engineering (IJECE) 6, n. 4 (1 agosto 2016): 1534. http://dx.doi.org/10.11591/ijece.v6i4.10082.

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The emergence of cuprates as a high Tc superconductor gave high hopes in the discovery of a room temperature superconductor. It is almost three decades and the highest critical temperature attained on the cuprates is about 135K. A brief overview was conducted on the progress made so far on the cuprates. A mathematical approach was used to design a formula which could determine the experimental results of critical temperature of versed cuprates superconductors. The result of our findings shows that the possibility of attaining the experimental room temperature cuprates superconductor seems very narrow. The study recommended an elaborate approach on the hybridization of cuprates for future research. Hence, there is possibility of having cuprates with wide engineering application.
5

M.E., Emetere, Awojoyogbe O.B., Uno U.E., Isah K.U., Sanni E.S. e Akinyemi M.L. "How Reliable is the Cuprates System to Recent Technology?" International Journal of Electrical and Computer Engineering (IJECE) 6, n. 4 (1 agosto 2016): 1534. http://dx.doi.org/10.11591/ijece.v6i4.pp1534-1540.

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Abstract (sommario):
The emergence of cuprates as a high Tc superconductor gave high hopes in the discovery of a room temperature superconductor. It is almost three decades and the highest critical temperature attained on the cuprates is about 135K. A brief overview was conducted on the progress made so far on the cuprates. A mathematical approach was used to design a formula which could determine the experimental results of critical temperature of versed cuprates superconductors. The result of our findings shows that the possibility of attaining the experimental room temperature cuprates superconductor seems very narrow. The study recommended an elaborate approach on the hybridization of cuprates for future research. Hence, there is possibility of having cuprates with wide engineering application.
6

Гуламова, Д. Д., А. В. Каримов, Д. Г. Чигвинадзе, С. М. Ашимов, О. В. Маградзе, С. Х. Бобокулов, Ж. Ш. Турдиев e Х. Н. Бахронов. "Исследование критической температуры T-=SUB=-c-=/SUB=- гомофазных сверхпроводников (Bi-=SUB=-1.7-=/SUB=-Pb-=SUB=-0.3-=/SUB=-Sr-=SUB=-2-=/SUB=-Ca-=SUB=-(n-1)-=/SUB=-Cu-=SUB=-n-=/SUB=- O-=SUB=-y-=/SUB=- (n=3, 4, 5) и вольт-амперных характеристик сэндвич-пар полупроводник InP-сверхпроводник Bi/Pb (2223, 2234, 2245)". Журнал технической физики 89, n. 4 (2019): 583. http://dx.doi.org/10.21883/jtf.2019.04.47317.2269.

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AbstractThe electrophysical properties of semiconductor–superconductor sandwich pairs (InP–Bi/Pb 2223, 2234, 2245) are investigated, in which homophase superconductors based on bismuth cuprates with high reproducible critical temperatures of superconducting transition T _ c = 107–180 K are used. The advantage of melt solar technology for obtaining superconducting materials is demonstrated. The microstructure and phase composition of strongly anisotropic superconductors with nominal composition Bi_1.7Pb_0.3Sr_2Ca_( n _– 1)Cu_ n O_ y ( n = 3, 4, 5) are researched. A technique of experimental determination of superconducting transition critical temperatures T _ c in single-phase and homophase HTSC samples is presented. The current–voltage characteristics of InP–Bi/Pb pairs are investigated. The relationship between the electrical resistance of sandwich pairs and superconductor critical temperature T _ c is established.
7

Changjan, Arpapong, e Pongkaew Udomsamuthirun. "London Penetration Depth of Fe-Based Superconductors". Advanced Materials Research 979 (giugno 2014): 297–301. http://dx.doi.org/10.4028/www.scientific.net/amr.979.297.

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Superconductivity is a phenomenon of exactly zero electrical resistance and expulsion of magnetic fields occurring in certain materials when cooled below a characteristic critical temperature. Fe-based superconductors are superconductors whose containing iron compounds and having a very high critical magnetic field. London penetration depth can assist in the study of the behavior of the critical magnetic field. The London penetration depth is the distance to which a magnetic field penetrates into a superconductor and becomes equal to 0.367879 times that of the magnetic field at the surface of the superconductor. In this paper, the London penetration depth of Fe-based superconductors is studied by Ginzburg-Landau scenery. Free energy of Fe-based superconductors is assumed by modified the free energy of two-band magnetic superconductors model and theof Fe-based superconductors is derived analytically. Finally, the temperature dependence of is investigated and applied to Single-Crystal superconductors.
8

Leroux, Maxime, Vivek Mishra, Jacob P. C. Ruff, Helmut Claus, Matthew P. Smylie, Christine Opagiste, Pierre Rodière et al. "Disorder raises the critical temperature of a cuprate superconductor". Proceedings of the National Academy of Sciences 116, n. 22 (13 maggio 2019): 10691–97. http://dx.doi.org/10.1073/pnas.1817134116.

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With the discovery of charge-density waves (CDWs) in most members of the cuprate high-temperature superconductors, the interplay between superconductivity and CDWs has become a key point in the debate on the origin of high-temperature superconductivity. Some experiments in cuprates point toward a CDW state competing with superconductivity, but others raise the possibility of a CDW-superconductivity intertwined order or more elusive pair-density waves (PDWs). Here, we have used proton irradiation to induce disorder in crystals of La1.875Ba0.125CuO4 and observed a striking 50% increase of Tc, accompanied by a suppression of the CDWs. This is in sharp contrast with the behavior expected of a d-wave superconductor, for which both magnetic and nonmagnetic defects should suppress Tc. Our results thus make an unambiguous case for the strong detrimental effect of the CDW on bulk superconductivity in La1.875Ba0.125CuO4. Using tunnel diode oscillator (TDO) measurements, we find indications for potential dynamic layer decoupling in a PDW phase. Our results establish irradiation-induced disorder as a particularly relevant tuning parameter for the many families of superconductors with coexisting density waves, which we demonstrate on superconductors such as the dichalcogenides and Lu5Ir4Si10.
9

MASTROPIETRO, V. "ANOMALOUS BCS EQUATION FOR A LUTTINGER SUPERCONDUCTOR". Modern Physics Letters B 13, n. 17 (20 luglio 1999): 585–97. http://dx.doi.org/10.1142/s0217984999000749.

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A self-consistence equation describing a superconductor whose normal state is a Luttinger liquid is computed in a rigorous way by renormalization group techniques. The gap and the critical temperatures are quite different with respect to the ones of normal superconductors (i.e. superconductors whose normal state is a Fermi liquid) and in particular, the critical temperature can be quite high for suitable values of the parameters. Such self-consistence equation can be obtained in a BCS mean field theory for a model of two Mattis models exchanging Cooper pairs. The connection of this model with recent theories of high T c superconductivity is briefly discussed.
10

Bigansolli, Antonio Renato, T. G. da Cruz e Durval Rodrigues Jr. "Nondestructive Analysis of Bi2212 Bulk Superconducting Ceramics in the C-Axis Direction". Materials Science Forum 869 (agosto 2016): 29–34. http://dx.doi.org/10.4028/www.scientific.net/msf.869.29.

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Abstract (sommario):
The use of superconductors of high critical temperatures in applied superconductivity leads to higher operation temperatures and economy of cryogenic fluids. High temperature superconductor materials exhibits limited transport properties due to grain boundary weak-links and anisotropy on the critical currents. The texturing development in these superconductors decreases in an efficient way the number of high-angle grain boundaries, increasing the values of the critical current densities. Several quantitative analysis methods have been developed to study the morphologic and topologic characteristics improving our understanding of structural parameters. In this work the grain size distribution characterization of Bi2Sr2CaCu2O8+δ Bi2212 superconductor bulk samples heat treated under the influence of an external applied magnetic field of 5T was carried out using a processing technique and analysis of images. The analyzed images were obtained by SEM in the c axis direction. All samples showed similar microstructures on both cases, but with the use of an external applied magnetic field during the heat treatments the average grain size decreased.
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Ti possono interessare anche gli elenchi estesi di opere sul tema "High critical temperature superconductor":
Articoli di riviste Tesi Libri

Tesi sul tema "High critical temperature superconductor":

1

Alméras, Philippe. "Photoemission spectroscopy on high critical temperature superconductors /". [S.l.] : [s.n.], 1995. http://library.epfl.ch/theses/?nr=1334.

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2

Durrell, John H. "Critical current anisotropy in high temperature superconductors". Thesis, University of Cambridge, 2001. https://www.repository.cam.ac.uk/handle/1810/34606.

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After nearly 15 years of research effort, High Temperature Superconductors (HTS) are finding a wide range of practical applications. A clear understanding of the factors controlling the current carrying capacity of these materials is a prerequisite to their successful technological development. The critical current density (Jc) in HTS is directly dependent on the structure and pinning of the Flux Line Lattice (FLL) in these materials. This thesis presents an investigation of the Jc anisotropy in HTS. The use of thin films grown on off c-axis (vicinal) substrates allowed the effect of current directions outside the cuprate planes to be studied. With this experimental geometry Berghuis, et al. (Phys. Rev. Lett. 79,12, pg. 2332) observed a striking flux channelling effect in vicinal YBa2Cu3O7-δ (YBCO) films. By confirming, and extending, this observation, it is demonstrated that this is an intrinsic effect. The results obtained, appear to fit well with the predictions of a field angle dependent cross-over from a three dimensional rectilinear FLL to a kinked lattice of strings and pancakes. The pinning force density for movement of strings inside the cuprate planes is considerably less than that on vortex pancake elements. When the FLL is entirely string-like this reduced pinning leads to the observed channelling minima. It is observed that anti-phase boundaries enhance the Jc in vicinal YBCO films by strongly pinning vortex strings. The effect on the FLL structure cross-over of increasing anisotropy has been elucidated using de-oxygenated vicinal YBCO films. Intriguingly, the counter intuitive prediction that the range of applied field angle for which the kinked lattice is fully developed reduces with increasing anisotropy, appears to be confirmed. Although vortex channelling cannot be observed in c-axis YBCO films, the pinning force density for vortex string channelling has been extracted by observing string dragging. By studying the effect of rotating the applied field at a constant angle to the cuprate planes, it is possible to observe the cross-over into the string pancake regime in c-axis films. In the 3D region, the observed behaviour is well explained by the anisotropic Ginzburg-Landau model. Measurements were also made on thin films of the much more anisotropic Bi 2Sr2CaCu2O8+x material, grown on vicinal substrates. The absence of any flux channelling effect and clear adherence to the expected Kes-Law behaviour in the observed Jc characteristics does not provide evidence for the existence of the predicted 'crossing lattice' in Bi 2Sr2CaCu2O8+x.
3

Jones, Anthony Roger. "Critical currents in granular high temperature superconductors". Thesis, University of Cambridge, 1995. https://www.repository.cam.ac.uk/handle/1810/254043.

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The work described in this thesis consists of an investigation into the behaviour of the critical current density (Jc) of several different high temperature superconductors (HTSCs) as a function of temperature and applied magnetic field. The focus of this research has been to investigate the discrepancies which generally exist between magnetic and transport measurements on HTSCs. In order to do this a number of systems were selected with different weak link strengths, overall alignment and pinning characteristics. Systematic studies were carried out on these systems using both transport and magnetic techniques. The results obtained were compared to obtain a coherent picture of the relation between critical currents in HTSCs, their granularity and structure, and how this accounts for the differences in magnetic and transport measurements. The Jc of granular bulk sintered YBCO was measured as a function of magnetic field and orientation, and attempts made to fit the results obtained to theory. The results obtained indicate that hysteresis of Jc with field cannot be explained by flux trapping alone. Jc measurements were carried out on the 'hub-and-spoke' (H-S) grains of melt-processed YBCO thick films. These indicated that within each H-S grain the current is constrained to radial paths through the centre of the grain. This has major implications for the analysis of any measurements carried out on these samples, as well as for applications, as only a small fraction of the sample carries the applied current. Silver-clad tapes of Tl:1223 and Tl:2223 were measured in different temperatures, applied magnetic fields and orientations. The variation of Jc along the tape length was also measured to provide an estimate of their homogeneity. It was found that the processing route used in the production of these tapes had not aligned the superconductor within them, and also that the tape properties were not homogenous along their length. This probably arises from the crystal structure of the thallium materials. The Jcs of melt-processed thick films of Bi:2212 on silver substrates were measured as a function of temperature and applied magnetic field, and compared with results obtained from magnetic measurements obtained from a VSM. Attempts were made to fit these results to theory. The results obtained show clear scaling behaviour of Jc with T at constant B and imply that the variation in the form of the Jc versus T curves is due simply to the suppression of Tc with increasing applied field.
4

郭明遠 e Ming-yuen Edward Kwok. "Numerical study of an isolated vortex and the lower critical field of a type-II superconductor in the presence of a twin plane". Thesis, The University of Hong Kong (Pokfulam, Hong Kong), 1996. http://hub.hku.hk/bib/B31213169.

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5

Kwok, Ming-yuen Edward. "Numerical study of an isolated vortex and the lower critical field of a type-II superconductor in the presence of a twin plane /". Hong Kong : University of Hong Kong, 1996. http://sunzi.lib.hku.hk/hkuto/record.jsp?B19670151.

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6

Schönborg, Niclas. "Development of loss models for a high-temperature superconducting tape". Doctoral thesis, KTH, Electrical Systems, 2001. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-3268.

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In the recent years significant progresses in thedevelopment of high-temperature superconductors have been made.It is realistic to believe that power applications, based onthese conductors, in a few years will become available. To beable to utilise the conductors in an optimum way, theunderstanding of their behaviour under application-likecondition is essential. One important parameter that has to beoptimised is the power loss, which means that mathematicalmodels of these losses have to be developed. In a typicalapplication the superconductor is utilised in a coilconfiguration where the actual magnetic field is considerablehigher than for a straight structure. For power frequencies thelosses are dominated by hysteresis losses and flux flowlosses.

In this thesis, mathematical models of the hysteresis andthe flux flow losses as a function of a transport current, anexternal magnetic field, the temperature and the frequency havebeen developed. The transport current and the magnetic field,which are assumed to be proportional to each other, includeboth an ac and a dc component. The models of the hysteresislosses are based on the critical state theory, and for twoidealised geometries, an infinite slab and a thin strip, newexact closed form equations have been derived. The equationsfor the two idealised geometries are then superimposed tofacilitate the description of a more realistic geometry, i.e. asuperconducting tape with a finite width and thickness. Themodel of the flux flow losses is valid for a tape shapedconductor and is based on both measurements and reasonablephysical assumptions. For the development and the validation ofthe models, a calorimetric measurement set-up has been used.From a limited number of relatively simple measurements, thedeveloped models can be adjusted to a certain superconductor,and the power losses for the actual superconductor can bepredicted in considerable more complicated cases.

Keywords:high-temperature superconductor, hysteresislosses, flux flow losses, critical state model, calorimetricmeasurements

7

Li, Aihua. "A study of the fabrication and characterisation of high temperature superconductor YBa₂Cu₃O₇ thin films". Access electronically, 2006. http://www.library.uow.edu.au/adt-NWU/public/adt-NWU20060928.143000/index.html.

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8

McGordon, Andrew. "The current-voltage and noise properties of high temperature superconductor SNS and grain boundary junctions". Thesis, University of Birmingham, 1999. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.368415.

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9

Putzke, Carsten Matthias. "Fermi surface and quantum critical phenomena of high-temperature superconductors". Thesis, University of Bristol, 2014. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.680124.

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This thesis presents the results obtained from de Haas-van Alphen experiments in ironbased superconductors. Measurements of the quasi particle mass in the quantum critical system BaFe2(Asl- xPxh are presented, which show strong enhancement towards the critical composition Xc = 0.3. This is found to be in good agreement with the prediction of a diverging behaviour of the effective mass close to a quantum critical point. Further results obtained on the lower and upper superconducting critical field of this system will be presented, which are found to contradict the expectations from Ginzburg-Landau theory based on results of the quasi particle mass and London penetration depth. However we can reconcile the different experimental findings on superconducting and normal state properties, in this quantum critical system, by considering a significant contribution from Abrikosov vortex core states. The importance of understanding the normal state electronic structure and interactions is shown to be essential for an understanding of the superconducting ground state of a quantum critical system. Further we will show a detailed de Haas-van Alphen study of the il1-type iron-based superconductor LiFeP and its isovalent partner LiFeAs. To understand the formation of nodes on the superconducting gap structure in systems with little change in their Fermi surface topology, is essential for the formulation of a microscopic theory of the pairing mechanism in pnictide-superconductors. 'While we find both systems to be close to the geometric nesting condition, we are able to point to different possible scenarios of the origin of nodes based on quasi particle mass enhancement. Extending the study of quasi particle mass and its relation to the superconducting properties to the stoichiometric high-temperature cuprate superconductor YBa2 CU4 Os, we aim to study the Fermi surface evolution under hydrostatic pressure. As the system has a very stable oxygen stoichiometry which does not allow it to be doped by oxygen ordering, we use hydrostatic pressure to tune the system unexpectedly leading to an increase in the superconducting critical temperature with almost no change to the quasi particle mass .
10

Richens, P. E. "High temperature superconductors in electromagnetic applications". Thesis, University of Oxford, 2000. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.365792.

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Libri sul tema "High critical temperature superconductor":

1

Czerwiński, Dariusz. Modelling the critical parameters of high temperature superconductor devices in transient states. Lublin: Politechnika Lubelska, 2013.

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2

George C. Marshall Space Flight Center., a cura di. A study of enhancing critical current densities (JC) and critical temperature (TC) of high-temperature superconductors: Center Director's discretionary fund final report (project 90-N26). [Marshall Space Flight Center, Ala.]: National Aeronautics and Space Administration, George C. Marshall Space Flight Center, 1992.

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3

Putzke, Carsten Matthias. Fermi Surface and Quantum Critical Phenomena of High-Temperature Superconductors. Cham: Springer International Publishing, 2017. http://dx.doi.org/10.1007/978-3-319-48646-8.

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4

International Workshop on Critical Current Limitations in High Temperature Superconductors (1991 Zaborów, Poland). Proceedings of the International Workshop on Critical Current Limitations in High Temperature Superconductors, Zaborów near Warsaw, Poland, September 10-13, 1991. A cura di Baran M, Gorzkowski W e Szymczak H. Singapore: World Scientific, 1992.

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5

Nobel Symposium (73rd 1988 Gräftåvallen, Sweden). Physics of low-dimensional systems: Proceedings of Nobel Symposium 73, Gräftåvallen, Sweden, June 6-11, 1988. A cura di Lundqvist Stig 1925- e Nilsson Nils Robert. Stockholm, Sweden: Royal Swedish Academy of Sciences, 1989.

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6

Topical International Cryogenic Materials Conference (1994 Tokai University Pacific Center). Critical state in superconductors: Proceedings of 1994 Topical International Cryogenic Materials Conference : Tokai University Pacific Center, Honolulu, Hawaii, 24-26 Oct '94. A cura di Tachikawa Kyoji. Singapore: World Scientific, 1995.

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7

Souta, Suzuki, e Fukuda Kouki, a cura di. MgB₂ superconductor research. Hauppauge, N.Y: Nova Science Publishers, 2008.

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8

Zhang, Wentao. Photoemission Spectroscopy on High Temperature Superconductor. Berlin, Heidelberg: Springer Berlin Heidelberg, 2013. http://dx.doi.org/10.1007/978-3-642-32472-7.

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9

Neeraj, Khare, a cura di. Handbook of high-temperature superconductor electronics. New York: Marcel Dekker, 2003.

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10

Souta, Suzuki, e Fukuda Kouki, a cura di. MgB₂ diboride (MgB2) superconductor research. Hauppauge, N.Y: Nova Science Publishers, 2009.

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Capitoli di libri sul tema "High critical temperature superconductor":

1

Saxena, Ajay Kumar. "Critical Current". In High-Temperature Superconductors, 61–99. Berlin, Heidelberg: Springer Berlin Heidelberg, 2012. http://dx.doi.org/10.1007/978-3-642-28481-6_3.

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Saxena, Ajay Kumar. "Critical Current". In High-Temperature Superconductors, 59–97. Berlin, Heidelberg: Springer Berlin Heidelberg, 2009. http://dx.doi.org/10.1007/978-3-642-00712-5_3.

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Campbell, A. M. "Critical Currents in Cuprate Superconductors". In High Temperature Superconductivity, 59–95. Boca Raton: CRC Press, 2021. http://dx.doi.org/10.1201/9781003209621-3.

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Varma, C. M. "Critical Overview of Theories for High Temperature Superconductors". In High-T c Superconductors, 13–25. Boston, MA: Springer US, 1988. http://dx.doi.org/10.1007/978-1-4899-0846-9_2.

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Stornaiuolo, Daniela, e Francesco Tafuri. "High Critical Temperature Superconductor Josephson Junctions and Other Exotic Structures". In Fundamentals and Frontiers of the Josephson Effect, 275–337. Cham: Springer International Publishing, 2019. http://dx.doi.org/10.1007/978-3-030-20726-7_8.

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6

Schneider, T., e J. M. Singer. "Universal Critical Quantum Properties of Cuprate Superconductors". In Fluctuation Phenomena in High Temperature Superconductors, 361–68. Dordrecht: Springer Netherlands, 1997. http://dx.doi.org/10.1007/978-94-011-5536-6_29.

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7

Lawrie, Ian D. "Critical vs Lowest-Landau-Level Scaling in the Ginzburg­landau Theory". In Fluctuation Phenomena in High Temperature Superconductors, 293–300. Dordrecht: Springer Netherlands, 1997. http://dx.doi.org/10.1007/978-94-011-5536-6_23.

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8

Pureur, P., e R. Menegotto Costa. "Low-Field Fluctuation Magnetoconductivity in Bi2Sr2CaCu2O8 and YBa2Cu3O7: Gaussian, Critical and LLL Scalings". In Fluctuation Phenomena in High Temperature Superconductors, 259–69. Dordrecht: Springer Netherlands, 1997. http://dx.doi.org/10.1007/978-94-011-5536-6_20.

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9

Weber, Harald W. "Critical currents in neutron-irradiated high temperature superconductors". In Advances in Superconductivity XI, 37–42. Tokyo: Springer Japan, 1999. http://dx.doi.org/10.1007/978-4-431-66874-9_5.

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10

Putzke, Carsten Matthias. "BaFe $$_2$$ 2 (As $$_{1-x}$$ 1 - x P $$_x$$ x ) $$_2$$ 2 —A Quantum Critical Superconductor". In Fermi Surface and Quantum Critical Phenomena of High-Temperature Superconductors, 81–119. Cham: Springer International Publishing, 2016. http://dx.doi.org/10.1007/978-3-319-48646-8_4.

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Atti di convegni sul tema "High critical temperature superconductor":

1

Ladd, J. A. "Critical Issues In The Synthesis And Processing Of High Temperature Superconductor Materials". In Electro International, 1991. IEEE, 1991. http://dx.doi.org/10.1109/electr.1991.718272.

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2

Baran, M., W. Gorzkowski e H. Szymczak. "CRITICAL CURRENT LIMITATIONS IN HIGH TEMPERATURE SUPERCONDUCTORS". In Proceedings of the International Workshop. WORLD SCIENTIFIC, 1992. http://dx.doi.org/10.1142/9789814538282.

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3

Tsuei, C. C., J. Mannhart e D. Dimos. "Limitations on critical currents in high temperature superconductors". In Topical conference on high tc superconducting thin films, devices, and applications. AIP, 1989. http://dx.doi.org/10.1063/1.37950.

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4

Contour, Jean-Pierre, A. Abert e Arnaud Defossez. "Stress relaxation and critical layer thickness of high-temperature superconductor thin films, heterostructures, and superlattices". In Photonics West '96, a cura di Ivan Bozovic e Davor Pavuna. SPIE, 1996. http://dx.doi.org/10.1117/12.250242.

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5

Alexandrov, A. S. "Critical temperature of high-Tc superconductors in the bipolaron model". In HIGHLIGHTS IN CONDENSED MATTER PHYSICS. AIP, 2003. http://dx.doi.org/10.1063/1.1639575.

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6

Paulius, L. M., W. K. Kwok, J. A. Fendrich, R. E. Shamu, A. M. Petrean, S. M. Ferguson e G. W. Crabtree. "Using radiation damage to increase critical currents in high temperature superconductors". In The fourteenth international conference on the application of accelerators in research and industry. AIP, 1997. http://dx.doi.org/10.1063/1.52477.

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7

Liebrich, Johannes, e Christian Kreischer. "Novel Method for Characterization of the Influence of Axial Tensile Stress on the Critical Temperature of High-Temperature Superconductor Windings in Electrical Machines". In 2022 International Symposium on Power Electronics, Electrical Drives, Automation and Motion (SPEEDAM). IEEE, 2022. http://dx.doi.org/10.1109/speedam53979.2022.9842101.

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8

Morega, A. M., e J. C. Ordonez. "A Higher Resolution, Local Thermal Analysis of an AC Armature Winding of a High Temperature Superconductor Motor". In ASME 2006 International Mechanical Engineering Congress and Exposition. ASMEDC, 2006. http://dx.doi.org/10.1115/imece2006-13825.

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Abstract (sommario):
The armature of high performance synchronous motors with High Temperature Superconductor (HTS) field is an AC copper winding, mounted in an iron-less stator – a so-called "air winding". Its thermal design poses difficult problems because while the armature works at ambient temperatures it is siege of higher than usual power dissipation by Joule and variable magnetic field effects. Considering that air windings are not common in classical electrical machines design, novel cooling solutions need to be considered. The standard, design class lumped thermal circuit analysis may not suffice, and it has to be complemented with a finer resolution investigation of the regions with increased structural and heat transfer complexity. As a detailed, field analysis of the entire armature is not practical a local analysis is both desirable and feasible. This paper reports a mathematical model for the heat flow in a critical part of the air-winding armature of a forced convection air-cooled HTS motor. The heat transfer mechanisms and paths, the thermal load structure unveiled by numerical simulation are then used to produce a high resolution lumped thermal circuit that conveniently complements the design class schemes used for sizing models and prototypes.
9

LYKOV, A. "CRITICAL TEMPERATURE OF HIGH-Tc SUPERCONDUCTORS AND BOUNDARY CONDITIONS IN GINZBURG-LANDAU THEORY". In Proceedings of the 32nd International Workshop. WORLD SCIENTIFIC, 2009. http://dx.doi.org/10.1142/9789814289153_0026.

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10

Kaloyeros, Alain E., Aiguo Feng, Elke Jahn e Kennethy C. Brooks. "Metal-organic chemical vapor deposition (MOCVD) of high temperature superconductors with enhanced critical current". In Superconductivity and its applications. AIP, 1991. http://dx.doi.org/10.1063/1.40280.

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Rapporti di organizzazioni sul tema "High critical temperature superconductor":

1

MALEY, M. P., e L. N. VULAEVSKII. PINNING VORTICES AND ENHANCING HIGH-TEMPERATURE SUPERCONDUCTOR CRITICAL CURRENTS DENSITIES. Office of Scientific and Technical Information (OSTI), novembre 1999. http://dx.doi.org/10.2172/785031.

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2

Finnemore, Douglas K. Thermodynamic Critical Field and Superconducting Fluctuation of Vortices for High Temperature Cuprate Superconductor: La-214. Office of Scientific and Technical Information (OSTI), gennaio 2001. http://dx.doi.org/10.2172/804043.

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3

Krazinski, J., R. Holtz e R. Jaross. Impact of high-critical-temperature superconductors on electromagnetic pump applications. Office of Scientific and Technical Information (OSTI), maggio 1990. http://dx.doi.org/10.2172/6705784.

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4

Hellstrom, Eric. Understanding the Critical Current Density Limits of BiSrCaCuO High Temperature Superconductors. Fort Belvoir, VA: Defense Technical Information Center, aprile 2002. http://dx.doi.org/10.21236/ada402184.

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5

Schaper, Leonard W. High Temperature Superconductor MCM Process Development. Fort Belvoir, VA: Defense Technical Information Center, marzo 1998. http://dx.doi.org/10.21236/ada339986.

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6

Gupta, Ramesh, e Michael Furey. Magnet Coil Designs Using YBCO High Temperature Superconductor. Office of Scientific and Technical Information (OSTI), marzo 2013. http://dx.doi.org/10.2172/1079503.

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7

Larbalestier, David C. Fundamental Studies for High Temperature Superconductor Conductor Technology. Fort Belvoir, VA: Defense Technical Information Center, ottobre 2000. http://dx.doi.org/10.21236/ada384356.

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8

Wang, Paul C. High Temperature Superconductor RF Probes for Breast Cancer Research. Fort Belvoir, VA: Defense Technical Information Center, ottobre 2001. http://dx.doi.org/10.21236/ada404908.

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9

Goyal, A., R. A. Hawsey, J. Hack e D. Moon. Advanced high temperature superconductor film-based process using RABiTS. Office of Scientific and Technical Information (OSTI), gennaio 2000. http://dx.doi.org/10.2172/750964.

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10

Cunningham, J. M. Characterization of high-temperature superconductor film layers using Raman Spectroscopy. Office of Scientific and Technical Information (OSTI), aprile 1999. http://dx.doi.org/10.2172/8941.

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