Superconductivity In Nanowires

Author : Alexey Bezryadin
Publisher : John Wiley & Sons
Page : 247 pages
File Size : 41,7 Mb
Release : 2013-02-19
Category : Science
ISBN : 9783527651955

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Superconductivity in Nanowires by Alexey Bezryadin Pdf

The importance and actuality of nanotechnology is unabated and will be for years to come. A main challenge is to understand the various properties of certain nanostructures, and how to generate structures with specific properties for use in actual applications in Electrical Engineering and Medicine. One of the most important structures are nanowires, in particular superconducting ones. They are highly promising for future electronics, transporting current without resistance and at scales of a few nanometers. To fabricate wires to certain defined standards however, is a major challenge, and so is the investigation and understanding of these properties in the first place. A promising approach is to use carbon nanotubes as well as DNA structures as templates. Many fundamental theoretical questions are still unanswered, e.g. related to the role of quantum fluctuations. This work is tackling them and provides a detailed analysis of the transport properties of such ultrathin wires. It presents an account of theoretical models, charge transport experiments, and also conveys the latest experimental findings regarding fabrication, measurements, and theoretical analysis. In particular, it is the only available resource for the approach of using DNA and carbon nanotubes for nanowire fabrication. It is intended for graduate students and young researchers interested in nanoscale superconductivity. The readers are assumed to have knowledge of the basics of quantum mechanics and superconductivity.

Author : Fabio Altomare,Albert M. Chang
Publisher : John Wiley & Sons
Page : 309 pages
File Size : 45,7 Mb
Release : 2013-04-23
Category : Technology & Engineering
ISBN : 9783527649068

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One-Dimensional Superconductivity in Nanowires by Fabio Altomare,Albert M. Chang Pdf

The book introduces scientists and graduate students to superconductivity, and highlights the differences arising from the different dimensionality of the sample under study. It focuses on transport in one-dimensional superconductors, describing relevant theories with particular emphasis on experimental results. It closely relates these results to the emergence of various novel fabrication techniques. The book closes by discussing future perspectives, and the connection and relevance to other physical systems, including superfluidity, Bose-Einstein condensates, and possibly cosmic strings.

Author : Holger Bartolf
Publisher : Springer
Page : 328 pages
File Size : 49,8 Mb
Release : 2015-12-16
Category : Science
ISBN : 9783658122461

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Fluctuation Mechanisms in Superconductors by Holger Bartolf Pdf

Holger Bartolf discusses state-of-the-art detection concepts based on superconducting nanotechnology as well as sophisticated analytical formulæ that model dissipative fluctuation-phenomena in superconducting nanowire single-photon detectors. Such knowledge is desirable for the development of advanced devices which are designed to possess an intrinsic robustness against vortex-fluctuations and it provides the perspective for honorable fundamental science in condensed matter physics. Especially the nanowire detector allows for ultra-low noise detection of signals with single-photon sensitivity and GHz repetition rates. Such devices have a huge potential for future technological impact and might enable unique applications (e.g. high rate interplanetary deep-space data links from Mars to Earth).

Author : Henrich, Dagmar
Publisher : KIT Scientific Publishing
Page : 204 pages
File Size : 42,6 Mb
Release : 2014-07-28
Category : Science
ISBN : 9783731500926

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Influence of Material and Geometry on the Performance of Superconducting Nanowire Single-Photon Detectors by Henrich, Dagmar Pdf

Superconducting Nanowire Single-Photon Detectors offer the capability to detect electromagnetic waves on a single photon level in a wavelength range that far exceeds that of alternative detector types. However, above a certain threshold wavelength, the efficiency of those detectors decreases stronlgy, leading to a poor performance in the far-infrared range. Influences on this threshold are studied and approaches for improvement are verified experimentally by measurement of the device performance.

Author : Diane Ansermet
Publisher : Springer
Page : 165 pages
File Size : 49,5 Mb
Release : 2018-11-19
Category : Technology & Engineering
ISBN : 9789811329418

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Emergent Superconductivity in Low Dimensions by Diane Ansermet Pdf

This book explores the relationship between electronic correlations, dimensionality, inhomogeneities, and superconductivity in low-dimensional systems by studying single crystals of the quasi-one-dimensional Na2–δMo6Se6, composed of MoSe filaments weakly coupled by Na atoms and subject to intrinsic disorder (δ > 0). It shows that the Na2-δMo6Se6 displays strong electronic correlations in its normal state, whereas a superconducting ground state emerges from Anderson localized electrons. Two novel behaviors of the superconducting state are observed: first, a disorder induced enhancement of the superconducting transition temperature; second, a reentrant phase coherence with increasing temperature, magnetic field, and current. It also analyzes the intrinsic properties of Na2-δMo6Se6 are analyzed to offer a thorough understanding of these phenomena. The emergence of superconductivity in such low-dimensional systems provides a fruitful playground to explore electronic order and correlations.

Author : Klaus D. Sattler
Publisher : CRC Press
Page : 827 pages
File Size : 52,8 Mb
Release : 2010-09-17
Category : Science
ISBN : 1420075411

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Handbook of Nanophysics by Klaus D. Sattler Pdf

Covering the key theories, tools, and techniques of this dynamic field, Handbook of Nanophysics: Principles and Methods elucidates the general theoretical principles and measurements of nanoscale systems. Each peer-reviewed chapter contains a broad-based introduction and enhances understanding of the state-of-the-art scientific content through fundamental equations and illustrations, some in color. This volume explores the theories involved in nanoscience. It also discusses the properties of nanomaterials and nanosystems, including superconductivity, thermodynamics, nanomechanics, and nanomagnetism. In addition, leading experts describe basic processes and methods, such as atomic force microscopy, STM-based techniques, photopolymerization, photoisomerization, soft x-ray holography, and molecular imaging. Nanophysics brings together multiple disciplines to determine the structural, electronic, optical, and thermal behavior of nanomaterials; electrical and thermal conductivity; the forces between nanoscale objects; and the transition between classical and quantum behavior. Facilitating communication across many disciplines, this landmark publication encourages scientists with disparate interests to collaborate on interdisciplinary projects and incorporate the theory and methodology of other areas into their work.

Author : Bangwei Zhang
Publisher : William Andrew
Page : 486 pages
File Size : 45,9 Mb
Release : 2018-02-03
Category : Technology & Engineering
ISBN : 9780124104792

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Physical Fundamentals of Nanomaterials by Bangwei Zhang Pdf

Physical Fundamentals of Nanomaterials systematically describes the principles, structures and formation mechanisms of nanomaterials, in particular the concepts, principles and theories of their physical properties as well as the most important and commonly used preparation methods. The book aims to provide readers with a basic understanding of how nanomaterials are synthesized as well as their resultant physical properties it therefore focuses on the science of nanomaterials rather than applications, serving as an excellent starting point for researchers, materials scientists and advanced students who already possess a basic knowledge of chemistry and physics. Provides thorough coverage of the physics and processes involved in the preparation of nanomaterials Contains separate chapters for various types of synthesis methods, including gas phase, liquid phase, solid phase, and self-assembly Coverage of properties includes separate chapters on mechanical, thermal, optical, electrical and magnetic

Author : Paul Seidel
Publisher : John Wiley & Sons
Page : 1336 pages
File Size : 40,6 Mb
Release : 2015-01-29
Category : Technology & Engineering
ISBN : 9783527670659

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Applied Superconductivity by Paul Seidel Pdf

This wide-ranging presentation of applied superconductivity, from fundamentals and materials right up to the details of many applications, is an essential reference for physicists and engineers in academic research as well as in industry. Readers looking for a comprehensive overview on basic effects related to superconductivity and superconducting materials will expand their knowledge and understanding of both low and high Tc superconductors with respect to their application. Technology, preparation and characterization are covered for bulk, single crystals, thins fi lms as well as electronic devices, wires and tapes. The main benefit of this work lies in its broad coverage of significant applications in magnets, power engineering, electronics, sensors and quantum metrology. The reader will find information on superconducting magnets for diverse applications like particle physics, fusion research, medicine, and biomagnetism as well as materials processing. SQUIDs and their usage in medicine or geophysics are thoroughly covered, as are superconducting radiation and particle detectors, aspects on superconductor digital electronics, leading readers to quantum computing and new devices.

Author : Francesco Tafuri
Publisher : Springer Nature
Page : 859 pages
File Size : 50,8 Mb
Release : 2019-09-17
Category : Technology & Engineering
ISBN : 9783030207267

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Fundamentals and Frontiers of the Josephson Effect by Francesco Tafuri Pdf

This book provides a comprehensive and up-to-date description of the Josephson effect, a topic of never-ending interest in both fundamental and applied physics. In this volume, world-renowned experts present the unique aspects of the physics of the Josephson effect, resulting from the use of new materials, of hybrid architectures and from the possibility of realizing nanoscale junctions. These new experimental capabilities lead to systems where novel coherent phenomena and transport processes emerge. All this is of great relevance and impact, especially when combined with the didactic approach of the book. The reader will benefit from a general and modern view of coherent phenomena in weakly-coupled superconductors on a macroscopic scale. Topics that have been only recently discussed in specialized papers and in short reviews are described here for the first time and organized in a general framework. An important section of the book is also devoted to applications, with focus on long-term, future applications. In addition to a significant number of illustrations, the book includes numerous tables for comparative studies on technical aspects.

Author : Hofherr, Matthias
Publisher : KIT Scientific Publishing
Page : 213 pages
File Size : 40,8 Mb
Release : 2014-09-26
Category : Electronic
ISBN : 9783731502296

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Real-time imaging systems for superconducting nanowire single-photon detector arrays by Hofherr, Matthias Pdf

Author : A. V. Narlikar
Publisher : Nova Biomedical Books
Page : 358 pages
File Size : 45,5 Mb
Release : 1994
Category : Science
ISBN : UOM:39015026904626

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HTSC Thin Films by A. V. Narlikar Pdf

Studies Of High Temperature Superconductors Volume 13 -- Advances In Research & Applications

Author : Sergei Kruchinin
Publisher : World Scientific
Page : 306 pages
File Size : 55,8 Mb
Release : 2021-04-14
Category : Technology & Engineering
ISBN : 9789811234538

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Modern Aspects Of Superconductivity: Theory Of Superconductivity (Second Edition) by Sergei Kruchinin Pdf

This book is devoted to superconductivity, which is one of the most interesting problems in physics. In accordance with the outline of the book, it treats the key problems in the field of superconductivity, in particular, it discusses the mechanism(s) of superconductivity. This book is useful for researchers and graduate students in the fields of solid state physics, quantum field theory, and many-body theory.

Author : Schmidt, Wolfgang-Gustav Ekkehart
Publisher : KIT Scientific Publishing
Page : 240 pages
File Size : 48,9 Mb
Release : 2020-07-09
Category : Science
ISBN : 9783731509806

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Superconducting Nanowire Single-Photon Detectors for Quantum Photonic Integrated Circuits on GaAs by Schmidt, Wolfgang-Gustav Ekkehart Pdf

Author : Knehr, Emanuel Marius
Publisher : KIT Scientific Publishing
Page : 200 pages
File Size : 41,8 Mb
Release : 2023-03-02
Category : Technology & Engineering
ISBN : 9783731512561

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Technology and readout for scaling up superconducting nanowire single-photon detectors by Knehr, Emanuel Marius Pdf

This work presents three advances to scale SNSPDs from few-pixel devices to large detector arrays: atomic layer deposition for the fabrication of uniform superconducting niobium nitride films of few-nanometer thickness, a frequency-multiplexing scheme to operate multiple detectors with a reduced number of lines, and the integration of SNSPDs with free-form polymer structures to achieve efficient optical coupling onto the active area of the detectors.

Author : Junji Haruyama
Publisher : CRC Press
Page : 316 pages
File Size : 50,7 Mb
Release : 2014-12-16
Category : Science
ISBN : 9789814303316

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Carbon-based Superconductors by Junji Haruyama Pdf

Superconductors (SCs) are attractive materials in all respects for any community. They provide a deep insight into the physical properties of the condensed matters and also have useful applications as ultra-low-power-dissipation systems that can help resolve the present energy problems. In particular, the recent advancement of carbon-based new superconductors (CNSCs) is significant. Before 2004, the superconducting transition temperature (Tc) of carbon-based SCs was below 1 K, except in fullerene clusters. However, in 2004, a Russian group discovered that diamond highly doped with boron could be an SC at Tc = 4 K. The following year, a group from Cambridge found that calcium-intercalated graphite could be an SC with Tc = 11.5 K. In 2006 and 2008, the editor’s group from Japan also discovered that carbon nanotubes could be SCs at Tc = 12 K. Since then, research on CNSCs has increased notably. A small mass of carbon can produce high phonon frequency and high Debye temperature. Combining these with other specified properties of CNSCs (such as one-dimensional electronic states) is highly expected to open doors to high-Tc superconductivity like those of CuO2- and Fe-based SCs, which were the only SCs to show Tc > 40 K in the past. CNSCs, such as diamond, graphite, carbon nanotubes, fullerenes, and others, are a very attractive field of research, and this book is the first to describe their basic physics and the recent advances toward high Tc in this field.