Critical States in Type-II Thin Film Superconductors PDF Download
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Author: Jun Zhu
Publisher:
ISBN:
Category :
Languages : en
Pages : 316
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Book Description
Author: Jun Zhu
Publisher:
ISBN:
Category :
Languages : en
Pages : 316
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Book Description
Author:
Publisher:
ISBN:
Category :
Languages : en
Pages : 4
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Book Description
When a weak magnetic field is applied to a superconducting strip or disk of thickness d (of the order of the penetration depth [lambda]) much less than its width or radius, induced super-currents flow so as to prevent magnetic flux from penetrating the superconductor (except within [lambda] of the edge). A stronger field causes vortices to enter, and the profiles of the macroscopic flux density B are determined by critical-state equations describing bulk pinning. Near the sample edge, where the vortices are, the magnitude of the current density J is J{sub c}. In vortex-free regions of the sample, the magnitude of J is less than J{sub c} but is not zero. The profiles of B can be calculated analytically by assuming that J, averaged over the film thickness, is given by the difference between the values of the tangential component of B at the top and bottom surfaces of the film. This paper examines the basis for this assumption, which is equivalent to assuming that the current density is determined solely by the curvature of H, rather than by the gradient of its magnitude. It is shown that this is a good approximation for thin-film strips and disks.
Author: Silvia Haindl
Publisher: Springer Nature
ISBN: 3030751325
Category : Technology & Engineering
Languages : en
Pages : 403
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Book Description
This book provides a modern introduction to the growth, characterization, and physics of iron-based superconducting thin films. Iron pnictide and iron chalcogenide compounds have become intensively studied key materials in condensed matter physics due to their potential for high temperature superconductivity. With maximum critical temperatures of around 60 K, the new superconductors rank first after the celebrated cuprates, and the latest announcements on ultrathin films promise even more. Thin film synthesis of these superconductors began in 2008 immediately after their discovery, and this growing research area has seen remarkable progress up to the present day, especially with regard to the iron chalcogenides FeSe and FeSe1-xTex, the iron pnictide BaFe2-xCoxAs2 and iron-oxyarsenides. This essential volume provides comprehensive, state-of-the-art coverage of iron-based superconducting thin films in topical chapters with detailed information on thin film synthesis and growth, analytical film characterization, interfaces, and various aspects on physics and materials properties. Current efforts towards technological applications and functional films are outlined and discussed. The development and latest results for monolayer FeSe films are also presented. This book serves as a key reference for students, lecturers, industry engineers, and academic researchers who would like to gain an overview of this complex and growing research area.
Author: R. Kossowsky
Publisher: Springer Science & Business Media
ISBN: 9780792356646
Category : Science
Languages : en
Pages : 792
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Book Description
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:
Publisher:
ISBN:
Category : Nuclear energy
Languages : en
Pages : 764
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Book Description
Author:
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ISBN:
Category : Nuclear energy
Languages : en
Pages : 918
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Book Description
Author: R.D. McConnell
Publisher: Springer Science & Business Media
ISBN: 146845658X
Category : Science
Languages : en
Pages : 542
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Book Description
The Conference on the Science and Technology of Thin Film Superconductors was conceived in the early part of 1988 as a forum for the specialist in thin film superconductivity. The conference was held on November 14-18, 1988, in Co lorado Springs, Co lorado. Al though many excellent superconductivity conferences had been convened in the wake of the 1986-1987 discoveries in high temperature superconductivity, thin film topics were often dispersed among the sessions of a more general conference agenda. The response to the Conference on the Science and Technology of Thin Film Superconductors confirmed the need for an extended conference devoted to thin film superconductors. These proceedings are a major contribution to the technnology of thin film superconductivity because of the breadth and quality of the articles provided by leaders in the field. The proceedings are divided into articles on laser deposition, sputtering, evaporation, metal organic chemical vapor deposition, thick film, substrate studies, characterization, patterning and applications, and general properties. Most of the articles discuss scientific issues for high temperature thin film superconductors, although the conference was to be a forum for technology and scientific questions for both low and high temperature superconductivity. For the first day of the 5 day conference, Lawrence Berkeley Laboratory had organized an excellent set of short courses in superconduc t ing thin film devices.
Author: Ernest V. Kadyrov
Publisher:
ISBN:
Category :
Languages : en
Pages : 526
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Book Description
Author: V.V. Schmidt
Publisher: Springer Science & Business Media
ISBN: 3662035014
Category : Technology & Engineering
Languages : en
Pages : 217
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Book Description
The original Russian edition is based on a lecture course given by the author and provides a modern treatment of the physics of superconductors with special attention paid to the physical interpretation of the phenomena. This revised English translation has been enlarged by the inclusion of such new developments as High Temperature Superconductivity, and, as such, is the most up-to-date textbook on the subject available. The editor, Paul Müller, is himself a winner of the Walter Schottky Award for Solid State Research.
Author: Yassine Slimani
Publisher: Springer Nature
ISBN: 9811912114
Category : Technology & Engineering
Languages : en
Pages : 406
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Book Description
This book presents an overview of the science of superconducting materials. It covers the fundamentals and theories of superconductivity. Subjects of special interest involving mechanisms of high temperature superconductors, tunneling, transport properties, magnetic properties, critical states, vortex dynamics, etc. are present in the book. It assists as a fundamental resource on the developed methodologies and techniques involved in the synthesis, processing, and characterization of superconducting materials. The book covers numerous classes of superconducting materials including fullerenes, borides, pnictides or iron-based chalcogen superconductors ides, alloys and cuprate oxides. Their crystal structures and properties are described. Thereafter, the book focuses on the progress of the applications of superconducting materials into superconducting magnets, fusion reactors, and accelerators and other superconducting magnets. The applications also cover recent progress in superconducting wires, power generators, powerful energy storage devices, sensitive magnetometers, RF and microwave filters, fast fault current limiters, fast digital circuits, transport vehicles, and medical applications.
