Download or read book Structural Dynamics in DCNQI Salts and Transition Metal Dichalcogenides Studied by Electron Diffraction Simulation written by Olufemi Opeyemi Olaoye and published by . This book was released on 2015 with total page 130 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Studying the Structural Phase Transition of Organic Cu DCNQI 2 with Ultrafast Electron Diffraction written by Nancy Payne and published by . This book was released on 2017 with total page 62 pages. Available in PDF, EPUB and Kindle. Book excerpt: "Organic molecular solids combine the richness of molecular and solid state physics. The structure and properties of organic solids can be modified to a great extent - for example, by utilising isotope effects, addition of side chains, and forming alloys - resulting in a highly tailorable group of materials with a wide range of anisotropic electrical, magnetic and optical properties. The radical-ion salts of copper-dicyanoquinonediimine [Cu(DCNQI)2] are an excellent example, exhibiting high one-dimensional electrical conductivities at room temperature and abrupt metal-insulator transitions upon cooling of more than six orders of magnitude. The reverse insulator-metal transition can be photoinduced using an ultrashort optical laser pulse, turning the crystal from a plastic-like insulator to a metal-like conductor within 10-12 seconds. This phase transition is associated with structural changes of the crystal lattice which can be observed using ultrafast electron diffraction (UED). This thesis describes the preparation of high quality 50 nm thick samples of monocrystalline Cu(Me, Br-DCNQI)2 by use of an ultramicrotome, the experimental setup and procedure, and the preliminary results of our UED experiments. The crystal lattice dynamics associated with the insulator-metal transition are studied in two regimes: 1) just below the phase transition temperature, and 2) far below the phase transition temperature. Time-resolved experiments allow direct observation of the structural changes at an atomic level and on the primary timescales of lattice dynamics. This sheds light on the driving forces behind the phase transition in different regimes, and the coupling strengths between electronic and vibrational degrees of freedom and their role in facilitating the insulator-metal transition."--English abstract.
Download or read book Photoelectron Spectroscopy written by Shigemasa Suga and published by Springer. This book was released on 2013-09-07 with total page 389 pages. Available in PDF, EPUB and Kindle. Book excerpt: Photoelectron spectroscopy is now becoming more and more required to investigate electronic structures of various solid materials in the bulk, on surfaces as well as at buried interfaces. The energy resolution was much improved in the last decade down to 1 meV in the low photon energy region. Now this technique is available from a few eV up to 10 keV by use of lasers, electron cyclotron resonance lamps in addition to synchrotron radiation and X-ray tubes. High resolution angle resolved photoelectron spectroscopy (ARPES) is now widely applied to band mapping of materials. It attracts a wide attention from both fundamental science and material engineering. Studies of the dynamics of excited states are feasible by time of flight spectroscopy with fully utilizing the pulse structures of synchrotron radiation as well as lasers including the free electron lasers (FEL). Spin resolved studies also made dramatic progress by using higher efficiency spin detectors and two dimensional spin detectors. Polarization dependent measurements in the whole photon energy spectrum of the spectra provide useful information on the symmetry of orbitals. The book deals with the fundamental concepts and approaches for the application of this technique to materials studies. Complementary techniques such as inverse photoemission, photoelectron diffraction, photon spectroscopy including infrared and X-ray and scanning tunneling spectroscopy are presented. This book provides not only a wide scope of photoelectron spectroscopy of solids but also extends our understanding of electronic structures beyond photoelectron spectroscopy.
Download or read book The Physics of Organic Superconductors and Conductors written by Andrei Lebed and published by Springer Science & Business Media. This book was released on 2008-03-26 with total page 754 pages. Available in PDF, EPUB and Kindle. Book excerpt: This bang up-to-date volume contains the distilled wisdom of some of the world’s leading minds on the subject. Inside, there is a treasure trove of general (tutorial) and topical reviews, written by leading researchers in the area of organic superconductors and conductors. The papers hail from all over the world, as far afield as the USA and Australia. They cover contemporary topics such as unconventional superconductivity, non-Fermi-liquid properties, and the quantum Hall effect.
Download or read book Supramolecular Architecture written by Thomas Bein and published by . This book was released on 1992 with total page 464 pages. Available in PDF, EPUB and Kindle. Book excerpt: A progress report on the attempts to control the structures, properties, and stability of supramolecular assemblies, which would be beneficial to a number of industries, including microelectronics, optics, and catalysts. The 28 papers are from a symposium at the American Chemical Society meeting in Atlanta, April 1991, and discuss two-dimensional assemblies (thin films), layered and low-dimensional structures, and three-dimensional frameworks and amorphous networks. Annotation copyrighted by Book News, Inc., Portland, OR
Download or read book Nanoscale Liquid Interfaces written by Thierry Ondarçuhu and published by CRC Press. This book was released on 2013-04-17 with total page 782 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book addresses the recent developments in the investigation and manipulation of liquids at the nanoscale. This new field has shown important breakthroughs on the basic understanding of physical mechanisms involving liquid interfaces, which led to applications in nanopatterning. It has also consequences in force microscopy imaging in liquid environment. The book proposes is a timely review of these various aspects. It is co-authored by 25 among the most prominent scientists in the field.
Download or read book Quantum Theory of Solids written by R. E. Peierls and published by Clarendon Press. This book was released on 1996-08-15 with total page 238 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book develops the subject from the basic principles of quantum mechanics. The emphasis is on a single statement of the ideas underlying the various approximations that have to be used and care is taken to separate sound arguments from conjecture. This book is written for the student of theoretical physics who wants to work in the field of solids and for the experimenter with a knowledge of quantum theory who is not content to take other people's arguments for granted. The treatment covers the electron theory of metals as well as the dynamics of crystals, including the author's work on the thermal conductivity of crystals which has been previously published in English.
Download or read book Bio Inspired Nanotechnology written by Marc R. Knecht and published by Springer Science & Business Media. This book was released on 2014-04-12 with total page 317 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book focuses on the use of bio-inspired and biomimetic methods for the fabrication and activation of nanomaterials. This includes studies concerning the binding of the biomolecules to the surface of inorganic structures, structure/function relationships of the final materials and extensive discussions on the final applications of such biomimetic materials in unique applications including energy harvesting/storage, biomedical diagnostics and materials assembly.
Download or read book Hard X ray Photoelectron Spectroscopy HAXPES written by Joseph Woicik and published by Springer. This book was released on 2015-12-26 with total page 576 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book provides the first complete and up-to-date summary of the state of the art in HAXPES and motivates readers to harness its powerful capabilities in their own research. The chapters are written by experts. They include historical work, modern instrumentation, theory and applications. This book spans from physics to chemistry and materials science and engineering. In consideration of the rapid development of the technique, several chapters include highlights illustrating future opportunities as well.
Download or read book Density Waves In Solids written by George Gruner and published by CRC Press. This book was released on 2018-03-08 with total page 288 pages. Available in PDF, EPUB and Kindle. Book excerpt: ?Density Waves in Solids is written for graduate students and scientists interested in solid-state sciences. It discusses the theoretical and experimental state of affairs of two novel types of broken symmetry ground states of metals, charge, and spin density waves. These states arise as the consequence of electron-phonon and electron-electron interactions in low-dimensional metals.Some fundamental aspects of the one-dimensional electron gas, and of the materials with anisotropic properties, are discussed first. This is followed by the mean field theory of the phases transitions?discussed using second quantized formalism?together with the various experimental observations on the transition and on the ground states. Fluctuation effects and the collective excitations are reviewed next, using the Ginzburg-Landau formalism, followed by the review of the interaction of these states with the underlying lattice and with impurities. The final chapters are devoted to the response of the ground states to external perturbations.
Download or read book Polarons in Advanced Materials written by Alexandre S. Alexandrov and published by Springer Science & Business Media. This book was released on 2008-01-11 with total page 672 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book first introduces a single polaron and describes recent achievements in analytical and numerical studies of polaron properties in different e-ph models. It then describes multi-polaron physics as well as many key physical properties of high-temperature superconductors, colossal magnetoresistance oxides, conducting polymers and molecular nanowires, which were understood with polarons and bipolarons.
Download or read book One Dimensional Conductors written by Seiichi Kagoshima and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 246 pages. Available in PDF, EPUB and Kindle. Book excerpt: This volume deals with physical properties of electrically one-dimensional conductors. It includes both a description of basic concepts and a review of recent progress in research. One-dimensional conductors are those materials in which an electric current flows easily in one specific crystal direction while the resistivity is very high in transverse directions. It was about 1973 when much attention began to be focussed on them and investigations started in earnest. The research was stimulated by the successful growth of crystals of the organic conductor TTF-TCNQ and of the inorganic conductor KCP. New concepts, characteristic of one dimension, were established in the in vestigations of their properties. Many new one-dimensional conductors were also found and synthesized. This field of research is attractive because of the discovery of new ma terials, phenomena and concepts which have only recently found a place in the framework of traditional solid-state physics and materials science. The relation of this topic to the wider field of solid-state sciences is therefore still uncertain. This situation is clearly reflected in the wide distribution of the fields of specialization of researchers. Due to this, and also to the rapid progress of research, no introductory book has been available which covers most of the important fields of research on one-dimensional conductors.
Download or read book Physics and Chemistry of Low Dimensional Inorganic Conductors written by C. Schlenker and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 477 pages. Available in PDF, EPUB and Kindle. Book excerpt: The field of low-dimensional conductors has been very active for more than twenty years. It has grown continuously and both the inorganic and organic materials have remark able properties, such as charge and spin density waves and superconductivity. The discovery of superconductivity at high temperature in copper-based quasi two-dimensional conducting oxides nearly ten years ago has further enlarged the field and stimulated new research on inorganic conductors. It was obviously impossible to cover such a broad field in a ten day Institute and it seemed pertinent to concentrate on inorganic conductors, excluding the high Tc superconducting oxides. In this context, it was highly desirable to include both physics and chemistry in the same Institute in order to tighten or in some cases to establish links between physicists and chemists. This Advanced Study Institute is the continuation of a series of similar ones which have taken place every few years since 1974. 73 participants coming from 13 countries have taken part in this School at the beautiful site of the Centre de Physique des Houches in the Mont-Blanc mountain range. The scientific programme included more than forty lectures and seminars, two poster sessions and ten short talks. Several discussion sessions were organized for the evenings, one on New Materials, one on New Topics and one on the special problem of the Fermi and Luttinger liquids. The scientific activity was kept high from the beginning to the end of the Institute.
Download or read book Lecture Notes on Electron Correlation and Magnetism written by Patrik Fazekas and published by World Scientific. This book was released on 1999 with total page 794 pages. Available in PDF, EPUB and Kindle. Book excerpt: Readership: Graduate students and researchers in condensed matter physics.
Download or read book Low Dimensional Conductors and Superconductors written by D. Jerome and published by Springer Science & Business Media. This book was released on 2013-12-14 with total page 524 pages. Available in PDF, EPUB and Kindle. Book excerpt: Research activities in low dimensional conductors have shown a rapid growth since 1972 and have led to the discovery of new and remarkable phy sical properties unique to both molecular and inorganic conductors exhibi ting one-dimensional transport behaviour. This NATO Institute was a conti nuation of aseries of NATO Advanced Study Institutes of Worshops which took place at regular intervals till 1979. This is the first time, however, that charge density wave transport and electronic properties of low dimen sional organic conductors are treated on an equal footing. The program of the Institute was framed by tutorial lectures in the theories and experiments of low dimensional conductors. The bulk of the course covered two series of low-dimensional mate rials with their respective properties. 1) The I-D inorganic conductors exhibiting the phenomena of sliding charge density waves, narrow band noise, memory effects, etc ..• 2) Low-dimensional crystallized organic conductors giving rise to various possibilities of ground states, spin-Peierls, spin density wave, Peierls, superconductivity and magnetic-field induced spin density wave, etc ... Since it has been established from the beginning that this Institute was to be devoted essentially to the Physics of Low Dimensional Conductors, only one main course summarized the progress in chemistry and material preparation.
Download or read book Reactive Sputter Deposition written by Diederik Depla and published by Springer Science & Business Media. This book was released on 2008-06-24 with total page 584 pages. Available in PDF, EPUB and Kindle. Book excerpt: In this valuable work, all aspects of the reactive magnetron sputtering process, from the discharge up to the resulting thin film growth, are described in detail, allowing the reader to understand the complete process. Hence, this book gives necessary information for those who want to start with reactive magnetron sputtering, understand and investigate the technique, control their sputtering process and tune their existing process, obtaining the desired thin films.
Download or read book Photonic Crystal Fibers written by F. Poli and published by Springer Science & Business Media. This book was released on 2007-08-17 with total page 245 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book is intended to provide expert guidance through the properties of photonic crystal fibers, with a specific focus on the telecommunication aspects. This is the first book to report a complete overview of photonic crystal fiber analysis and design for telecom applications. The authors believe that photonic crystal fibers can revolutionize the field of guided optics and its applications.
