Flux Pinning In Superconductors
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Flux Pinning In Superconductors
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Author : Teruo Matsushita
language : en
Publisher: Springer Science & Business Media
Release Date : 2007-07-04
Flux Pinning In Superconductors written by Teruo Matsushita and has been published by Springer Science & Business Media this book supported file pdf, txt, epub, kindle and other format this book has been release on 2007-07-04 with Science categories.
Superconductivity is now a considerable focus of attention as one of the te- nologies which can prevent environmental destruction by allowing energy to be used with high e?ciency. The possibility of practical applications of sup- conductivitydependsonthemaximumcurrentdensitywhichsuperconductors can carry, the value of losses which superconductors consume, the maximum magnetic ?eld strength in which superconductors can be used, etc. These f- tors are directly related to the ?ux pinning of quantized magnetic ?ux lines in superconductors. This book extensively describes related subjects, from the fundamental physics of ?ux pinning to electromagnetic phenomena caused by ?ux pinning events, which will be useful for anyone who wants to understand applied superconductivity. The Japanese edition was published for this purpose in 1994. Since then, there has been signi?cant progress in the research and development of hi- temperature superconductors. In particular, the new superconductor MgB 2 was discovered in 2001, followed by steady improvements in the superc- ducting properties necessary for applications. On the other hand, there are no essential di?erences in the ?ux pinning phenomena between these new superconductors and metallic superconductors. Hence, the framework of the previous Japanese edition was kept unchanged, while new description was added on these new superconductors in the English edition. In the following the content of each chapter is brie?y introduced.
Flux Pinning In Superconductors
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Author : Teruo Matsushita
language : en
Publisher: Springer Nature
Release Date : 2022-08-31
Flux Pinning In Superconductors written by Teruo Matsushita and has been published by Springer Nature this book supported file pdf, txt, epub, kindle and other format this book has been release on 2022-08-31 with Technology & Engineering categories.
This book covers the flux pinning mechanisms and properties and the electromagnetic phenomena caused by the flux pinning common for metallic, high-Tc and MgB2 superconductors. The condensation energy interaction known for normal precipitates or grain boundaries and the kinetic energy interaction proposed for artificial Nb pins in Nb-Ti, etc., are introduced for the pinning mechanism. Summation theories to derive the critical current density are discussed in detail. Irreversible magnetization and AC loss caused by the flux pinning are also discussed. The loss originally stems from the ohmic dissipation of normal electrons in the normal core driven by the electric field induced by the flux motion. The influence of the flux pinning on the vortex phase diagram in high Tc superconductors is discussed, and the dependencies of the irreversibility field are also described on other quantities such as anisotropy of superconductor, specimen size and electric field strength. Recent developments of critical current properties in various high-Tc superconductors and MgB2 are introduced. The 3rd edition has been thoroughly updated, with a new chapter on critical state model. The mechanism of irreversible properties is discussed in detail. The author provides calculations of pinning loss by the equation of motion of flux lines in the pinning potential and hysteresis loss. The readers will learn why the resultant loss is of hysteresis type in spite of such mechanism. This book aims for graduate students and researchers studying superconductivity as well as engineers working in electric utility industry.
Superconductivity And Electromagnetism
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Author : Teruo Matsushita
language : en
Publisher: Springer Nature
Release Date : 2021-02-23
Superconductivity And Electromagnetism written by Teruo Matsushita and has been published by Springer Nature this book supported file pdf, txt, epub, kindle and other format this book has been release on 2021-02-23 with Technology & Engineering categories.
This book introduces readers to the characteristic features of electromagnetic phenomena in superconductivity. It first demonstrates not only that the diamagnetism in the superconductivity complies with Maxwell’s theory, which was formulated before the discovery of superconductivity, but also that the dominant E-B analogy in the electromagnetism loses perfection without the superconductivity. The book then explores flux pinning, which is responsible for the non-dissipative current in DC, leading to irreversibility in AC. Drawing on Maxwell’s work, it also proves theoretically that if there is no energy dissipation in the superconductivity caused by the break in time reversal symmetry, it contradicts the thermodynamic principle of energy conservation – something that had previously only been proved experimentally. Lastly, the book addresses the longitudinal magnetic field effect, and explains how this phenomenon leads to a new development of Maxwell’s theory. Featuring numerous appendices to help readers understand the methods of derivation of equations, this book offers students and young scientists an introduction to applied superconductivity, especially in the context of power applications. Presenting the characteristic features of electromagnetic phenomena in superconductivity from basic to advanced topics for applications, the book offers a valuable resource for graduate students and researchers studying superconductivity as well as engineers working in electric utility industry.
Superconductivity
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Author : Charles P. Poole
language : en
Publisher: Academic Press
Release Date : 2013-10-22
Superconductivity written by Charles P. Poole and has been published by Academic Press this book supported file pdf, txt, epub, kindle and other format this book has been release on 2013-10-22 with Science categories.
Superconductivity covers the nature of the phenomenon of superconductivity. The book discusses the fundamental principles of superconductivity; the essential features of the superconducting state-the phenomena of zero resistance and perfect diamagnetism; and the properties of the various classes of superconductors, including the organics, the buckministerfullerenes, and the precursors to the cuprates. The text also describes superconductivity from the viewpoint of thermodynamics and provides expressions for the free energy; the Ginzburg-Landau and BCS theories; and the structures of the high temperature superconductors. The band theory; type II superconductivity and magnetic properties; and the intermediate and mixed states are also considered. The book further tackles critical state models; various types of tunneling and the Josephson effect; and other transport properties. The text concludes by looking into spectroscopic properties. Physicists and astronomers will find the book invaluable.
Magnetic Flux Motion And Flux Pinning In Superconductors
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Author : Steven C. Sanders
language : en
Publisher:
Release Date : 1992
Magnetic Flux Motion And Flux Pinning In Superconductors written by Steven C. Sanders and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1992 with categories.
Non Centrosymmetric Superconductors
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Author : Ernst Bauer
language : en
Publisher: Springer Science & Business Media
Release Date : 2012-01-13
Non Centrosymmetric Superconductors written by Ernst Bauer and has been published by Springer Science & Business Media this book supported file pdf, txt, epub, kindle and other format this book has been release on 2012-01-13 with Technology & Engineering categories.
Superconductivity in materials without inversion symmetry in the respective crystal structures occurs in the presence of antisymmetric spin-orbit coupling as a consequence of an emerging electric field gradient. The superconducting condensate is then a superposition of spin-singlet and spin-triplet Cooper pairs. This scenario accounts for various experimental findings such as nodes in the superconducting gap or extremely large upper critical magnetic fields. Spin-triplet pairing can occur in non-centrosymmetric superconductors in spite of Anderson’s theorem that spin-triplet pairing requires a crystal structure that exhibits inversion symmetry. This book, authored and edited by leading researchers in the field, is both an introduction to and overview on this exciting branch of novel superconductors. Its self-contained and tutorial style makes it particularly suitable for self-study and as source of teaching material for special seminars and courses. At the same time it constitutes an up-to-date and authoritative reference for anyone working in this exciting field.
High Temperature Superconductors
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Author : Ajay Kumar Saxena
language : en
Publisher: Springer Science & Business Media
Release Date : 2012-07-10
High Temperature Superconductors written by Ajay Kumar Saxena and has been published by Springer Science & Business Media this book supported file pdf, txt, epub, kindle and other format this book has been release on 2012-07-10 with Science categories.
This book presents the current knowledge about superconductivity in high Tc cuprate superconductors. There is a large scientific interest and great potential for technological applications. The book discusses all the aspects related to all families of cuprate superconductors discovered so far. Beginning with the phenomenon of superconductivity, the book covers: the structure of cuprate HTSCs, critical currents, flux pinning, synthesis of HTSCs, proximity effect and SQUIDs, possible applications of high Tc superconductors and theories of superconductivity. Though a high Tc theory is still awaited, this book describes the present scenario and BCS and RVB theories. The second edition was significantly extended by including film-substrate lattice matching and buffer layer considerations in thin film HTSCs, brick-wall microstructure in the epitaxial films, electronic structure of the CuO2 layer in cuprates, s-wave and d-wave coupling in HTSCs and possible scenarios of theories of high Tc superconductivity.
Flux Motion And Flux Pinning In Superconductors
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Author : S. Parkinson
language : en
Publisher:
Release Date : 1974
Flux Motion And Flux Pinning In Superconductors written by S. Parkinson and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1974 with categories.
Nanostructured Superconductors
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Author : Victor V. Moshchalkov
language : en
Publisher: World Scientific
Release Date : 2011
Nanostructured Superconductors written by Victor V. Moshchalkov and has been published by World Scientific this book supported file pdf, txt, epub, kindle and other format this book has been release on 2011 with Technology & Engineering categories.
The main focus of the book is to present the effects of nanostructuring on superconducting critical parameters. Optimizing systematically flux and condensate confinement in various nanostructured superconductors, ranging from single nano-cells to their hu
Flux Pinning In Superconducting Nb Ti Alloys
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Author : James Charles McKinnell
language : en
Publisher:
Release Date : 1990
Flux Pinning In Superconducting Nb Ti Alloys written by James Charles McKinnell and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1990 with categories.