Observation of Superconductivity in Epitaxially Grown Atomic Layers

Observation of Superconductivity in Epitaxially Grown Atomic Layers PDF Author: Satoru Ichinokura
Publisher: Springer
ISBN: 9811068534
Category : Science
Languages : en
Pages : 135

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Book Description
This thesis presents first observations of superconductivity in one- or two-atomic-scale thin layer materials. The thesis begins with a historical overview of superconductivity and the electronic structure of two-dimensional materials, and mentions that these key ingredients lead to the possibility of the two-dimensional superconductor with high phase-transition temperature and critical magnetic field. Thereafter, the thesis moves its focus onto the implemented experiments, in which mainly two different materials thallium-deposited silicon surfaces and metal-intercalated bilayer graphenes, are used. The study of the first material is the first experimental demonstration of both a gigantic Rashba effect and superconductivity in the materials supposed to be superconductors without spatial inversion symmetry. The study of the latter material is relevant to superconductivity in a bilayer graphene, which was a big experimental challenge for a decade, and has been first achieved by the author. The description of the generic and innovative measurement technique, highly effective in probing electric resistivity of ultra-thin materials unstable in an ambient environment, makes this thesis a valuable source for researchers not only in surface physics but also in nano-materials science and other condensed-matter physics.

Observation of Superconductivity in Epitaxially Grown Atomic Layers

Observation of Superconductivity in Epitaxially Grown Atomic Layers PDF Author: Satoru Ichinokura
Publisher: Springer
ISBN: 9811068534
Category : Science
Languages : en
Pages : 135

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Book Description
This thesis presents first observations of superconductivity in one- or two-atomic-scale thin layer materials. The thesis begins with a historical overview of superconductivity and the electronic structure of two-dimensional materials, and mentions that these key ingredients lead to the possibility of the two-dimensional superconductor with high phase-transition temperature and critical magnetic field. Thereafter, the thesis moves its focus onto the implemented experiments, in which mainly two different materials thallium-deposited silicon surfaces and metal-intercalated bilayer graphenes, are used. The study of the first material is the first experimental demonstration of both a gigantic Rashba effect and superconductivity in the materials supposed to be superconductors without spatial inversion symmetry. The study of the latter material is relevant to superconductivity in a bilayer graphene, which was a big experimental challenge for a decade, and has been first achieved by the author. The description of the generic and innovative measurement technique, highly effective in probing electric resistivity of ultra-thin materials unstable in an ambient environment, makes this thesis a valuable source for researchers not only in surface physics but also in nano-materials science and other condensed-matter physics.

The Oxford Handbook of Small Superconductors

The Oxford Handbook of Small Superconductors PDF Author: A. V. Narlikar
Publisher: Oxford University Press
ISBN: 0191058041
Category : Science
Languages : en
Pages : 641

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Book Description
This handbook is about a remarkable set of materials that are technically referred to as "mesoscopic superconductors", which for all practical purposes are tiny or small in their dimensions, ranging from a few micrometers down to a nanometer. At this level of smallness, the superconducting properties are dramatically changed, showing the dominance of quantum effects. Ground breaking research studies of small superconductors have emerged, and in a world obsessed with miniaturization of electronic device technology, small superconductors acquire even greater relevance and timeliness for the development of exciting novel quantum devices. The chapters, contributed by noted researchers and frontrunners in the field from 15 countries, are presented in three parts, namely progress in basic studies, materials specific research, and advances in nanodevices. The contents of the handbook should be of immediate interest to advanced level university students and researchers particularly in physics, materials science, nanoscience and engineering departments. Various reviews and overviews appearing in the book should answer the queries and curiosities of non-specialists interested in nanoscale superconductivity. At the start, the book carries an extended introduction for readers new to the field. The book should also appeal to scientists and engineers from electronic industries interested in knowing the current status of the theory, manufacture, and future of mesoscopic superconductors. In doing so, this volume offers the opportunity to engage with cutting edge research in one of the most exciting fields of physics today and tomorrow.

Diverse Quasiparticle Properties of Emerging Materials

Diverse Quasiparticle Properties of Emerging Materials PDF Author: Tran Thi Thu Hanh
Publisher: CRC Press
ISBN: 1000738647
Category : Science
Languages : en
Pages : 432

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Book Description
Diverse Quasiparticle Properties of Emerging Materials: First-Principles Simulations thoroughly explores the rich and unique quasiparticle properties of emergent materials through a VASP-based theoretical framework. Evaluations and analyses are conducted on the crystal symmetries, electronic energy spectra/wave functions, spatial charge densities, van Hove singularities, magnetic moments, spin configurations, optical absorption structures with/without excitonic effects, quantum transports, and atomic coherent oscillations. Key Features Illustrates various quasiparticle phenomena, mainly covering orbital hybridizations and spin-up/spin-down configurations Mainly focuses on electrons and holes, in which their methods and techniques could be generalized to other quasiparticles, such as phonons and photons Considers such emerging materials as zigzag nanotubes, nanoribbons, germanene, plumbene, bismuth chalcogenide insulators Includes a section on applications of these materials This book is aimed at professionals and researchers in materials science, physics, and physical chemistry, as well as upper-level students in these fields.

Lithium-Related Batteries

Lithium-Related Batteries PDF Author: Ngoc Thanh Thuy Tran
Publisher: CRC Press
ISBN: 100054821X
Category : Science
Languages : en
Pages : 355

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Book Description
This book serves as a comprehensive treatment of the advanced microscopic properties of lithium- and sodium-based batteries. It focuses on the development of the quasiparticle framework and the successful syntheses of cathode/electrolyte/anode materials in these batteries. FEATURES Highlights lithium-ion and sodium-ion batteries as well as lithium sulfur-, aluminum-, and iron-related batteries Describes advanced battery materials and their fundamental properties Addresses challenges to improving battery performance Develops theoretical predictions and experimental observations under a unified quasiparticle framework Targets core issues such as stability and efficiencies Lithium-Related Batteries: Advances and Challenges will appeal to researchers and advanced students working in battery development, including those in the fields of materials, chemical, and energy engineering.

New Developments In Applied Superconductivity - Proceedings Of The International Symposium

New Developments In Applied Superconductivity - Proceedings Of The International Symposium PDF Author: Yukitaka Murakami
Publisher: World Scientific
ISBN: 9813201401
Category : Science
Languages : en
Pages : 830

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Book Description
This symposium focused on new superconductors, electronics, magnet technology, energy and new applications. Recent discoveries in HTc, with transition temperatures over 90 K, have spawned a search for practical new applications. These applications extend from current uses such as that of the medical MRI to future applications, represented by research on new high-temperature materials. They span from microcircuit applications to the proposed SMES and fusion reactor applications.

Advances in Superconductivity V

Advances in Superconductivity V PDF Author: Yoshichika Bando
Publisher: Springer Science & Business Media
ISBN: 4431683054
Category : Science
Languages : en
Pages : 1319

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Book Description
This book covers all research fields in high Tc Superconductivity. Breakthrougs in the single crystal growth of a monolithic device leads to a new technology.

Advances in Superconductivity III

Advances in Superconductivity III PDF Author: Koji Kajimura
Publisher: Springer Science & Business Media
ISBN: 4431681418
Category : Technology & Engineering
Languages : en
Pages : 1312

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Book Description
Since the discovery of high temperature superconductors, many new materials have been invented. In the last year, several new materials were also discovered, but their critical temperatures are still below lOOK. Precise physical and chemical work has made tremendous progress in the theoretical and experimental study of physical properties and carrier state characterizations. The de Haas van Alphen effect measurement showed the existence of a Fermi surface in YBCO. Flux dynamics is a well-known new problem in which flux creep and irreversibility line features are especially important for a fundamental understanding of the critical current and flux pinning. Flux pinning centers which are intentionally added using non-superconducting precipitates, neutrons, and protons, etc. increase critical currents to practical levels. The analysis of electric and magnetic properties are expected to reveal the pinning mechanism and also to further application development. As for wires and bulks, many melt-like sintering techniques have improved the material performance of critical current densities. A new seeding Quench-Melt Growth technique enlarged crystal size and increased the repulsion force. These melting processes, in conjunction with a mechanical strength improvement have been effectively introduced into wire fabrication in order to realize kilometer range wires and will put the oxide wires to practical use. Where thin film is con cerned, when many fabrication methods had been developed using the assistance effect of activated oxygen such as ozone and oxygen radicals, a high current 2 density of 106A/cm at 77K was reported.

Advances in Superconductivity VI

Advances in Superconductivity VI PDF Author: Toshizo Fujita
Publisher: Springer Science & Business Media
ISBN: 443168266X
Category : Science
Languages : en
Pages : 1359

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Book Description
More than seven years have passed since the dramatic breakthrough in the critical temperature for superconductors. During this period, a host of new materials have been discovered, and efforts have been stepped up in a variety of domains including device and systems applications, commercialization, and basic research on the properties of superconductive materials. Recent progress in areas such as bulk single crystal production, long-scale wire and tape produc tion, flywheel and bearing applications, and electronic device applications for thin films indicate that science and technology have been working hand in hand in this field, as has been the case in the research and development of semi conductors. This interdisciplinary "resonance" will be certain to lead to further outstanding advances in the years to come. It goes without saying that worldwide information exchange is the key to accelerating progress in superconductivity science and technology. As in previous years, the ISS '93 served as a venue where visions of future develop ments were shared in addition to presentations and extensive discussions on the most up-to-date research results. I hope that the Proceedings contained in this volume will be consulted not only as a summary of the current "state of the art" in high-Tc superconductivity but also as a stimulating source of ideas regarding future applications of superconductivity research.

Spectroscopic Studies of Superconductors

Spectroscopic Studies of Superconductors PDF Author:
Publisher:
ISBN:
Category : Spectrum analysis
Languages : en
Pages : 382

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Book Description


2D Semiconductor Materials and Devices

2D Semiconductor Materials and Devices PDF Author: Dongzhi Chi
Publisher: Elsevier
ISBN: 0128165898
Category : Technology & Engineering
Languages : en
Pages : 339

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Book Description
2D Semiconductor Materials and Devices reviews the basic science and state-of-art technology of 2D semiconductor materials and devices. Chapters discuss the basic structure and properties of 2D semiconductor materials, including both elemental (silicene, phosphorene) and compound semiconductors (transition metal dichalcogenide), the current growth and characterization methods of these 2D materials, state-of-the-art devices, and current and potential applications. - Reviews a broad range of emerging 2D electronic materials beyond graphene, including silicene, phosphorene and compound semiconductors - Provides an in-depth review of material properties, growth and characterization aspects—topics that could enable applications - Features contributions from the leading experts in the field