Flux Pinning In Superconductors

Author : Teruo Matsushita
Publisher : Springer Nature
Page : 506 pages
File Size : 51,7 Mb
Release : 2022-08-31
Category : Technology & Engineering
ISBN : 9783030946395

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Flux Pinning in Superconductors by Teruo Matsushita Pdf

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.

Author : Anant Narlikar
Publisher : Nova Science Pub Incorporated
Page : 294 pages
File Size : 49,9 Mb
Release : 1997
Category : Science
ISBN : 156072420X

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Critical Current, Flux Pinning and Optical Studies of High Temperature Superconductors by Anant Narlikar Pdf

Author : A. V. Narlikar
Publisher : Nova Publishers
Page : 296 pages
File Size : 46,7 Mb
Release : 2005
Category : Flux pinning
ISBN : UCSC:32106018646304

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Vortex Physics and Flux Pinning by A. V. Narlikar Pdf

Studies of High Temperature Superconductors, Volume 48 - Vortex Physics & Flux Pinning

Author : R. Kossowsky,Shyamalendu Bose,Zafer Durusoy,Vladimir Pan
Publisher : Springer Science & Business Media
Page : 792 pages
File Size : 47,7 Mb
Release : 1999-04-30
Category : Science
ISBN : 0792356640

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Physics and Materials Science of Vortex States, Flux Pinning and Dynamics by R. Kossowsky,Shyamalendu Bose,Zafer Durusoy,Vladimir Pan Pdf

A discussion by an assembly of expert physicists and materials scientists, embracing the specific features of vortex-pin interactions, the modes of different kinds of vortex motion under the action of Lorenz force, and the mechanisms of dissipation. The effects of transport and screening currents, superimposed AC magnetic fields and the microwave electromagnetic irradiation on vortex behaviour define the electromagnetic properties of a high-Tc superconducting material. The mechanisms driving the depinning of vortices and the dynamics of their motion determine the critical current density and its file dependence, the mechanisms of energy dissipation, and linear and nonlinear resistivity, AC losses, and noise in electronic circuitry. The book therefore has direct implications for the development of new devices and components in electrical engineering, modern electronics, computer technology, and microwave communication.

Author : R.P. Huebener
Publisher : Springer Science & Business Media
Page : 324 pages
File Size : 42,7 Mb
Release : 2013-03-14
Category : Technology & Engineering
ISBN : 9783662084465

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Magnetic Flux Structures in Superconductors by R.P. Huebener Pdf

This second edition has been brought up to date by the inclusion of an extensive new chapter on aspects relevant to high-temperature superconductors. The new edition provides researchers, engineers and other scientists with an introduction to the field and makes useful supplementary reading for graduate students in low-temperature physics.

Author : T Matsushita,K Yamafuji
Publisher : World Scientific
Page : 536 pages
File Size : 42,5 Mb
Release : 1996-11-26
Category : Electronic
ISBN : 9789814547161

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Critical Currents in Superconductors by T Matsushita,K Yamafuji Pdf

This workshop includes about 110 papers describing the flux pinning and related electromagnetic phenomena in superconductors. Various problems are argued on exotic properties of flux lines, flux dynamics, flux pinning mechanisms, critical current density and critical state phenomena in both high- and low-temperature superconductors. Contents:OverviewsFlux Lines, Phase DiagramsIrreversibility Line, Flux DynamicsFlux Spinning Properties, Artificial PinsBulk Materials, Tapes, Thin Films Readership: Researchers and postgraduates students in high Tc superconductivity, condensed matter/solid state physics, applied physics, electrical & electronic engineering and materials science.

Author : A. V. Narlikar
Publisher : Nova Publishers
Page : 264 pages
File Size : 45,8 Mb
Release : 2000
Category : Science
ISBN : 1560728531

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A.C. Losses and Flux Pinning and Formation of Stripe Phase by A. V. Narlikar Pdf

AC Losses & Flux Pinning & Formation of Stripe Phase

Author : Rudolf Huebener
Publisher : Springer Science & Business Media
Page : 272 pages
File Size : 50,7 Mb
Release : 2013-04-17
Category : Science
ISBN : 9783662023051

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Magnetic Flux Structures in Superconductors by Rudolf Huebener Pdf

The idea for this book originated from an International Conference on Mag netic Structures in Superconductors organized by John R. Clem and the author at Argonne National Laboratory (ANL) in September of 1973. Large parts of the book evolved from lectures given to graduate students at the University of TUbingen during the past three years. It is the purpose of this book to provide an introduction to the many features of magnetic flux structures in superconductors and to discuss the this field. Here, in addition to the static proper recent developments in ties of magnetic flux structures, the time-dependent phenomena represent an important subject including flux flow and the transport effects in supercon ductors. Throughout the book the emphasis is placed on the physical phenom ena and the experimental results. We do not attempt a general introduction to superconductivity. Except for a brief discussion of the Ginzburg-Landau theory, with respect to the theoretical developments we only give an outline and refer to the original papers or other reviews for the detail of the calculations. The book is intended for researchers and graduate students interested in the subject of magnetic flux structures in superconductors. It may serve as supplementary material for a graduate course on low-temperature solid state physics. During recent years technological applications of supercon ducting materials are becoming increasingly important. Here the static and dynamic behavior of magnetic flux structures playa distinguished role. The book may be helpful for people envolved in these engineering aspects of superconductivity.

Author : Peter Haasen,Herbert C. Freyhardt
Publisher : Unknown
Page : 368 pages
File Size : 40,8 Mb
Release : 1975
Category : Flux (Metallurgy)
ISBN : UOM:39015017575286

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Proceedings of the International Discussion Meeting on Flux Pinning in Superconductors, 23.-27. September 1974, Internationales Haus Sonnenberg, St. Andreasberg/Harz., Germany by Peter Haasen,Herbert C. Freyhardt Pdf

Author : Anant Narlikar
Publisher : Unknown
Page : 282 pages
File Size : 52,7 Mb
Release : 2000
Category : Science
ISBN : CHI:56197614

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Flux Pinning in High Temperature Superconductors by Anant Narlikar Pdf

Main headings: Flux Depinning and Current vs. Voltage Characteristics Near the Glass-Liquid Transition; Equilibrium Properties of the Mixed Phase of High-Tc Superconductors in the Presence of Pinning; Microstructure and Flux Pinning in Melt Processed (Nd,Eu,Gd)-Ba-Cu-O Superconductor; Influence of Irradiation-Induced Defects and Chemical Substitutions on the Flux Pinning in Hg-Based Single Crystals and Films; Magnetisation Discontinuities at Melting and Freezing Transitions in YBa2Cu3O7-8; Current-Induced Unbinding of Thermally Created Vortex-Antivortex Pairs in Zero Magnetic Field; Flux Creep-Flux Flow Crossover in the Presence of Disorder in High Temperature Superconductors.

Author : Teruo Matsushita
Publisher : Springer Nature
Page : 207 pages
File Size : 52,8 Mb
Release : 2021-03-27
Category : Technology & Engineering
ISBN : 9783030675684

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Superconductivity and Electromagnetism by Teruo Matsushita Pdf

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.

Author : Zhou Lian,Weber H W,Collings Edward William
Publisher : World Scientific
Page : 464 pages
File Size : 51,6 Mb
Release : 1998-02-28
Category : Electronic
ISBN : 9789814545440

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Critical Currents In Superconductors For Practical Applications - Proceedings Of The International Workshop by Zhou Lian,Weber H W,Collings Edward William Pdf

This proceedings volume reviews the recent developments of superconducting materials for practical applications and critical current characteristics. It contains 18 invited papers and 72 contributed papers. The scope of these papers includes: (1) synthesis and processing of practical materials, (2) properties of high-Tc tapes, coils and bulk materials, (3) critical currents and microstructure, (4) flux dynamics and pinning mechanisms, (5) applications of high-Tc materials, (6) applications of low-Tc superconductors, (7) processing, physical properties and applications of high-Tc thin films.

Author : Anant Narlikar
Publisher : Unknown
Page : 272 pages
File Size : 43,9 Mb
Release : 2000
Category : Science
ISBN : CHI:56248585

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A.C. Losses and Flux Pinning in High Temperature Superconductors by Anant Narlikar Pdf

Focuses on the issue of AC losses in wires and tapes, with chapters on AC losses of HTS tapes and wires, AC susceptibility and losses of Bi- 2223/Ag tapes in perpendicular AC magnetic fields, AC losses in bulk high-temperature superconductors, modeling and computation of AC losses in HTS conductors and magnets, residual losses in high Tc superconductors, transport property and AC losses of high Tc superconducting tape and conductors, and flux pinning in 123-type high Tc superconductors.

Author : Charles P. Poole,Horacio A. Farach,Richard J. Creswick
Publisher : Academic Press
Page : 637 pages
File Size : 53,6 Mb
Release : 2013-10-22
Category : Science
ISBN : 9781483219349

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Superconductivity by Charles P. Poole,Horacio A. Farach,Richard J. Creswick Pdf

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.

Author : Christoph Meingast
Publisher : Unknown
Page : 342 pages
File Size : 45,8 Mb
Release : 1988
Category : Electronic
ISBN : WISC:89015502321

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Flux Pinning by Delta H(̳c) and Delta Kappa Mechanisms in Nb-Ti Superconductors by Christoph Meingast Pdf