Measuring, Interpreting and Translating Electron Quasiparticle - Phonon Interactions on the Surfaces of the Topological Insulators Bismuth Selenide and Bismuth Telluride

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Publisher : Springer
ISBN 13 : 3319447238
Total Pages : 100 pages
Book Rating : 4.3/5 (194 download)

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Book Synopsis Measuring, Interpreting and Translating Electron Quasiparticle - Phonon Interactions on the Surfaces of the Topological Insulators Bismuth Selenide and Bismuth Telluride by : Colin Howard

Download or read book Measuring, Interpreting and Translating Electron Quasiparticle - Phonon Interactions on the Surfaces of the Topological Insulators Bismuth Selenide and Bismuth Telluride written by Colin Howard and published by Springer. This book was released on 2016-10-14 with total page 100 pages. Available in PDF, EPUB and Kindle. Book excerpt: The thesis presents experimental and theoretical results about the surface dynamics and the surface Dirac fermion (DF) spectral function of the strong topological insulators Bi2Te3 and Bi2Se3. The experimental results reveal the presence of a strong Kohn anomaly in the measured surface phonon dispersion of a low-lying optical mode, and the absence of surface Rayleigh acoustic phonons. Fitting the experimental data to theoretical models employing phonon Matsubara functions allowed the extraction of the matrix elements of the coupling Hamiltonian and the modifications to the surface phonon propagator that are encoded in the phonon self-energy. This allowed, for the first time, calculation of phonon mode-specific DF coupling λν(q) from experimental data, with average coupling significantly higher than typical values for metals, underscoring the strong coupling between optical surface phonons and surface DFs in topological insulators. Finally, to connect to experimental results obtained from photoemission spectroscopies, an electronic (DF) Matsubara function was constructed using the determined electron-phonon matrix elements and the optical phonon dispersion. This allowed calculation of the DF spectral function and density of states, allowing for comparison with photoemission and scanning tunneling spectroscopies. The results set the necessary energy resolution and extraction methodology for calculating λ from the DF perspective.

Topological Insulators

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Publisher : Springer Science & Business Media
ISBN 13 : 364232858X
Total Pages : 234 pages
Book Rating : 4.6/5 (423 download)

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Book Synopsis Topological Insulators by : Shun-Qing Shen

Download or read book Topological Insulators written by Shun-Qing Shen and published by Springer Science & Business Media. This book was released on 2013-01-11 with total page 234 pages. Available in PDF, EPUB and Kindle. Book excerpt: Topological insulators are insulating in the bulk, but process metallic states present around its boundary owing to the topological origin of the band structure. The metallic edge or surface states are immune to weak disorder or impurities, and robust against the deformation of the system geometry. This book, the first of its kind on topological insulators, presents a unified description of topological insulators from one to three dimensions based on the modified Dirac equation. A series of solutions of the bound states near the boundary are derived, and the existing conditions of these solutions are described. Topological invariants and their applications to a variety of systems from one-dimensional polyacetalene, to two-dimensional quantum spin Hall effect and p-wave superconductors, and three-dimensional topological insulators and superconductors or superfluids are introduced, helping readers to better understand this fascinating new field. This book is intended for researchers and graduate students working in the field of topological insulators and related areas. Shun-Qing Shen is a Professor at the Department of Physics, the University of Hong Kong, China.

Two-Dimensional Transition-Metal Dichalcogenides

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Publisher : Springer
ISBN 13 : 3319314505
Total Pages : 545 pages
Book Rating : 4.3/5 (193 download)

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Book Synopsis Two-Dimensional Transition-Metal Dichalcogenides by : Alexander V. Kolobov

Download or read book Two-Dimensional Transition-Metal Dichalcogenides written by Alexander V. Kolobov and published by Springer. This book was released on 2016-07-26 with total page 545 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book summarizes the current status of theoretical and experimental progress in 2 dimensional graphene-like monolayers and few-layers of transition metal dichalcogenides (TMDCs). Semiconducting monolayer TMDCs, due to the presence of a direct gap, significantly extend the potential of low-dimensional nanomaterials for applications in nanoelectronics and nano-optoelectronics as well as flexible nano-electronics with unprecedented possibilities to control the gap by external stimuli. Strong quantum confinement results in extremely high exciton binding energies which forms an interesting platform for both fundamental studies and device applications. Breaking of spatial inversion symmetry in monolayers results in strong spin-valley coupling potentially leading to their use in valleytronics. Starting with the basic chemistry of transition metals, the reader is introduced to the rich field of transition metal dichalcogenides. After a chapter on three dimensional crystals and a description of top-down and bottom-up fabrication methods of few-layer and single layer structures, the fascinating world of two-dimensional TMDCs structures is presented with their unique atomic, electronic, and magnetic properties. The book covers in detail particular features associated with decreased dimensionality such as stability and phase-transitions in monolayers, the appearance of a direct gap, large binding energy of 2D excitons and trions and their dynamics, Raman scattering associated with decreased dimensionality, extraordinarily strong light-matter interaction, layer-dependent photoluminescence properties, new physics associated with the destruction of the spatial inversion symmetry of the bulk phase, spin-orbit and spin-valley couplings. The book concludes with chapters on engineered heterostructures and device applications such as a monolayer MoS2 transistor. Considering the explosive interest in physics and applications of two-dimensional materials, this book is a valuable source of information for material scientists and engineers working in the field as well as for the graduate students majoring in materials science.

Berry Phases in Electronic Structure Theory

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Publisher : Cambridge University Press
ISBN 13 : 1108661300
Total Pages : 395 pages
Book Rating : 4.1/5 (86 download)

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Book Synopsis Berry Phases in Electronic Structure Theory by : David Vanderbilt

Download or read book Berry Phases in Electronic Structure Theory written by David Vanderbilt and published by Cambridge University Press. This book was released on 2018-11-01 with total page 395 pages. Available in PDF, EPUB and Kindle. Book excerpt: Over the past twenty-five years, mathematical concepts associated with geometric phases have come to occupy a central place in our modern understanding of the physics of electrons in solids. These 'Berry phases' describe the global phase acquired by a quantum state as the Hamiltonian is changed. Beginning at an elementary level, this book provides a pedagogical introduction to the important role of Berry phases and curvatures, and outlines their great influence upon many key properties of electrons in solids, including electric polarization, anomalous Hall conductivity, and the nature of the topological insulating state. It focuses on drawing connections between physical concepts and provides a solid framework for their integration, enabling researchers and students to explore and develop links to related fields. Computational examples and exercises throughout provide an added dimension to the book, giving readers the opportunity to explore the central concepts in a practical and engaging way.

MoS2

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Publisher : Springer Science & Business Media
ISBN 13 : 3319028502
Total Pages : 296 pages
Book Rating : 4.3/5 (19 download)

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Book Synopsis MoS2 by : Zhiming M. Wang

Download or read book MoS2 written by Zhiming M. Wang and published by Springer Science & Business Media. This book was released on 2013-11-18 with total page 296 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book reviews the structure and electronic, magnetic, and other properties of various MoS2 (Molybdenum disulfide) nanostructures, with coverage of synthesis, Valley polarization, spin physics, and other topics. MoS2 is an important, graphene-like layered nano-material that substantially extends the range of possible nanostructures and devices for nanofabrication. These materials have been widely researched in recent years, and have become an attractive topic for applications such as catalytic materials and devices based on field-effect transistors (FETs) and semiconductors. Chapters from leading scientists worldwide create a bridge between MoS2 nanomaterials and fundamental physics in order to stimulate readers' interest in the potential of these novel materials for device applications. Since MoS2 nanostructures are expected to be increasingly important for future developments in energy and other electronic device applications, this book can be recommended for Physics and Materials Science and Engineering departments and as reference for researchers in the field.

Thermoelectric Energy Conversion

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Publisher : John Wiley & Sons
ISBN 13 : 3527698132
Total Pages : 404 pages
Book Rating : 4.5/5 (276 download)

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Book Synopsis Thermoelectric Energy Conversion by : Diana Davila Pineda

Download or read book Thermoelectric Energy Conversion written by Diana Davila Pineda and published by John Wiley & Sons. This book was released on 2017-08-22 with total page 404 pages. Available in PDF, EPUB and Kindle. Book excerpt: The latest volume in the well-established AMN series, this ready reference provides an up-to-date, self-contained summary of recent developments in the technologies and systems for thermoelectricity. Following an initial chapter that introduces the fundamentals and principles of thermoelectricity, subsequent chapters discuss the synthesis and integration of various bulk thermoelectric as well as nanostructured materials. The book then goes on to discuss characterization techniques, including various light and mechanic microscopy techniques, while also summarizing applications for thermoelectric materials, such as micro- and nano-thermoelectric generators, wearable electronics and energy conversion devices. The result is a bridge between industry and scientific researchers seeking to develop thermoelectric generators.

X-Ray Absorption Spectroscopy of Semiconductors

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Publisher : Springer
ISBN 13 : 3662443627
Total Pages : 367 pages
Book Rating : 4.6/5 (624 download)

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Book Synopsis X-Ray Absorption Spectroscopy of Semiconductors by : Claudia S. Schnohr

Download or read book X-Ray Absorption Spectroscopy of Semiconductors written by Claudia S. Schnohr and published by Springer. This book was released on 2014-11-05 with total page 367 pages. Available in PDF, EPUB and Kindle. Book excerpt: X-ray Absorption Spectroscopy (XAS) is a powerful technique with which to probe the properties of matter, equally applicable to the solid, liquid and gas phases. Semiconductors are arguably our most technologically-relevant group of materials given they form the basis of the electronic and photonic devices that now so widely permeate almost every aspect of our society. The most effective utilisation of these materials today and tomorrow necessitates a detailed knowledge of their structural and vibrational properties. Through a series of comprehensive reviews, this book demonstrates the versatility of XAS for semiconductor materials analysis and presents important research activities in this ever growing field. A short introduction of the technique, aimed primarily at XAS newcomers, is followed by twenty independent chapters dedicated to distinct groups of materials. Topics span dopants in crystalline semiconductors and disorder in amorphous semiconductors to alloys and nanometric material as well as in-situ measurements of the effects of temperature and pressure. Summarizing research in their respective fields, the authors highlight important experimental findings and demonstrate the capabilities and applications of the XAS technique. This book provides a comprehensive review and valuable reference guide for both XAS newcomers and experts involved in semiconductor materials research.

Understanding British Values in Primary Schools

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Publisher : Learning Matters
ISBN 13 : 1526416387
Total Pages : 129 pages
Book Rating : 4.5/5 (264 download)

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Book Synopsis Understanding British Values in Primary Schools by : Joy Carroll

Download or read book Understanding British Values in Primary Schools written by Joy Carroll and published by Learning Matters. This book was released on 2018-05-08 with total page 129 pages. Available in PDF, EPUB and Kindle. Book excerpt: This text provides trainees, teachers and schools with practice-based advice, informed by current practitioners, relating to the delivery of British Values. It covers many topical themes and supports educational professionals to understand their duties around the PREVENT agenda and goes further to explore why this is important.

From Semiconductors to Proteins: Beyond the Average Structure

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Publisher : Springer Science & Business Media
ISBN 13 : 1461506131
Total Pages : 294 pages
Book Rating : 4.4/5 (615 download)

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Book Synopsis From Semiconductors to Proteins: Beyond the Average Structure by : S.J.L. Billinge

Download or read book From Semiconductors to Proteins: Beyond the Average Structure written by S.J.L. Billinge and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 294 pages. Available in PDF, EPUB and Kindle. Book excerpt: This series of books, which is published at the rate of about one per year, addresses fundamental problems in materials science. The contents cover a broad range of topics from small clusters of atoms to engineering materials and involve chemistry, physics, materials science, and engineering, with length scales ranging from Angstroms up to millimeters. The emphasis is on basic science rather than on applications. Each book focuses on a single area of current interest and brings together leading experts to give an up-to-date discussion of their work and the work of others. Each article contains enough references that the interested reader can access the relevant literature. Thanks are given to the Center for Fundamental Materials Research at Michigan State University for supporting this series. M.F. Thorpe, Series Editor E-mail: [email protected] East Lansing, Michigan, November 200 I v PREFACE The study of the atomic structure of crystalline materials began at the beginning of the twentieth century with the discovery by Max von Laue and by W.H. and W.L. Bragg that crystals diffract x-rays. At that time, even the existence of atoms was controversial.

Conduction in Non-Crystalline Materials

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Publisher : Clarendon Press
ISBN 13 : 9780198539797
Total Pages : 160 pages
Book Rating : 4.5/5 (397 download)

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Book Synopsis Conduction in Non-Crystalline Materials by : Sir Nevill Mott

Download or read book Conduction in Non-Crystalline Materials written by Sir Nevill Mott and published by Clarendon Press. This book was released on 1993-05-20 with total page 160 pages. Available in PDF, EPUB and Kindle. Book excerpt: This second edition deals in an elementary way with electrons in non-crystalline systems. It reflects advances in the theory of interactions in non-crystalline systems, provides a more detailed discussion of the "minimum metallic conductivity", and addresses the relevance of disorder in the new high-temperature semiconductors.

Nanoelectronic Materials

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Publisher : Springer
ISBN 13 : 3030216217
Total Pages : 814 pages
Book Rating : 4.0/5 (32 download)

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Book Synopsis Nanoelectronic Materials by : Loutfy H. Madkour

Download or read book Nanoelectronic Materials written by Loutfy H. Madkour and published by Springer. This book was released on 2019-06-27 with total page 814 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book presents synthesis techniques for the preparation of low-dimensional nanomaterials including 0D (quantum dots), 1D (nanowires, nanotubes) and 2D (thin films, few layers), as well as their potential applications in nanoelectronic systems. It focuses on the size effects involved in the transition from bulk materials to nanomaterials; the electronic properties of nanoscale devices; and different classes of nanomaterials from microelectronics to nanoelectronics, to molecular electronics. Furthermore, it demonstrates the structural stability, physical, chemical, magnetic, optical, electrical, thermal, electronic and mechanical properties of the nanomaterials. Subsequent chapters address their characterization, fabrication techniques from lab-scale to mass production, and functionality. In turn, the book considers the environmental impact of nanotechnology and novel applications in the mechanical industries, energy harvesting, clean energy, manufacturing materials, electronics, transistors, health and medical therapy. In closing, it addresses the combination of biological systems with nanoelectronics and highlights examples of nanoelectronic–cell interfaces and other advanced medical applications. The book answers the following questions: • What is different at the nanoscale? • What is new about nanoscience? • What are nanomaterials (NMs)? • What are the fundamental issues in nanomaterials? • Where are nanomaterials found? • What nanomaterials exist in nature? • What is the importance of NMs in our lives? • Why so much interest in nanomaterials? • What is at nanoscale in nanomaterials? • What is graphene? • Are pure low-dimensional systems interesting and worth pursuing? • Are nanotechnology products currently available? • What are sensors? • How can Artificial Intelligence (AI) and nanotechnology work together? • What are the recent advances in nanoelectronic materials? • What are the latest applications of NMs?

Secrets of the Fairy Ring

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Publisher :
ISBN 13 : 9781861991898
Total Pages : 48 pages
Book Rating : 4.9/5 (918 download)

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Book Synopsis Secrets of the Fairy Ring by : Dominic Guard

Download or read book Secrets of the Fairy Ring written by Dominic Guard and published by . This book was released on 2008 with total page 48 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Fundamentals of Thermoelectricity

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Publisher :
ISBN 13 : 0199697663
Total Pages : 251 pages
Book Rating : 4.1/5 (996 download)

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Book Synopsis Fundamentals of Thermoelectricity by : Kamran Behnia

Download or read book Fundamentals of Thermoelectricity written by Kamran Behnia and published by . This book was released on 2015 with total page 251 pages. Available in PDF, EPUB and Kindle. Book excerpt: What kind of information on the electrons' organisation in solids is yielded by measuring their thermoelectric response? Fundamentals of Thermoelectricity gives an account of our current understanding of thermoelectric phenomena in solids by presenting basic theoretical concepts and numerous experimental results. Many readers will be surprised to learn that even in the case of simple metals (considered to be domesticated long ago by the quantum theory of solids) our understanding lags far behind known experimental facts. The two theories of phonon drag, the positive Seebeck coefficient of noble metals, and the three-orders-of-magnitude gap between theory and experiment regarding the thermoelectric response of Bogoliubov quasi-particles of a superconductor are among the forgotten puzzles discussed in this book. Among other novelties, it contains an original discussion of the role of the de Broglie thermal wave-length in setting the magnitude of the thermoelectric response in Fermi liquids.

Little Box of Mermaid Treasures

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Publisher :
ISBN 13 : 9780764193071
Total Pages : 0 pages
Book Rating : 4.1/5 (93 download)

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Book Synopsis Little Box of Mermaid Treasures by : Dominic Guard

Download or read book Little Box of Mermaid Treasures written by Dominic Guard and published by . This book was released on 2007 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Solar-to-Chemical Conversion

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Publisher : John Wiley & Sons
ISBN 13 : 3527825088
Total Pages : 480 pages
Book Rating : 4.5/5 (278 download)

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Book Synopsis Solar-to-Chemical Conversion by : Hongqi Sun

Download or read book Solar-to-Chemical Conversion written by Hongqi Sun and published by John Wiley & Sons. This book was released on 2021-04-29 with total page 480 pages. Available in PDF, EPUB and Kindle. Book excerpt: This comprehensive book systematically covers the fundamentals in solar energy conversion to chemicals, either fuels or chemical products. It includes natural photosynthesis with emphasis on artificial processes for solar energy conversion and utilization. The chemical processes of solar energy conversion via homogeneous and/or heterogeneous photocatalysis has been described with the mechanistic insights. It also consists of reaction systems toward a variety of applications, such as water splitting for hydrogen or oxygen evolution, photocatalytic CO2 reduction to fuels, and light driven N2 fixation, etc. This unique book offers the readers a broad view of solar energy utilization based on chemical processes and their perspectives for future sustainability.

Sound Topology, Duality, Coherence and Wave-Mixing

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Publisher : Springer
ISBN 13 : 331962380X
Total Pages : 374 pages
Book Rating : 4.3/5 (196 download)

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Book Synopsis Sound Topology, Duality, Coherence and Wave-Mixing by : Pierre Deymier

Download or read book Sound Topology, Duality, Coherence and Wave-Mixing written by Pierre Deymier and published by Springer. This book was released on 2017-08-12 with total page 374 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book offers an essential introduction to the notions of sound wave topology, duality, coherence and wave-mixing, which constitute the emerging new science of sound. It includes general principles and specific examples that illuminate new non-conventional forms of sound (sound topology), unconventional quantum-like behavior of phonons (duality), radical linear and nonlinear phenomena associated with loss and its control (coherence), and exquisite effects that emerge from the interaction of sound with other physical and biological waves (wave mixing). The book provides the reader with the foundations needed to master these complex notions through simple yet meaningful examples. General principles for unraveling and describing the topology of acoustic wave functions in the space of their Eigen values are presented. These principles are then applied to uncover intrinsic and extrinsic approaches to achieving non-conventional topologies by breaking the time reversal symmetry of acoustic waves. Symmetry breaking can impart topological immunity to wave degradation from imperfection scattering and catalyze controlled coherence. In the intrinsic case and the phonon representation of acoustic waves, the self-interaction/interference of a wave through its supporting medium exposes the notion of duality in the quantum statistics (i.e. boson vs. fermion characterized by the symmetry of multiple particle states) and how the quantum analogue behaviors of sound can be exploited in the form of novel sound-based information transfer and processing devices. By considering media that mix different types of waves, the book addresses the interaction of sound with other physical and biological waves but also brings to light examples of extrinsic processes that can lead to symmetry breaking. The coherent conversion of sound into other types of waves as well as the sound-induced non-conventional topology of elastic, electronic, spin and biological waves are presented in the case of media exhibiting elasto-electronic, photo-elastic, magneto-elastic effects and biological mechano-transduction.

Thermoelectric Materials and Devices

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Publisher : Royal Society of Chemistry
ISBN 13 : 178262323X
Total Pages : 269 pages
Book Rating : 4.7/5 (826 download)

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Book Synopsis Thermoelectric Materials and Devices by : Iris Nandhakumar

Download or read book Thermoelectric Materials and Devices written by Iris Nandhakumar and published by Royal Society of Chemistry. This book was released on 2017 with total page 269 pages. Available in PDF, EPUB and Kindle. Book excerpt: Authoritative account of recent developments in thermoelectric materials and devices for power energy harvesting applications, ideal for researchers and industrialists in materials science.