Download or read book Dynamics of Phase Transitions on Low index Metal Surfaces written by Bo Lin and published by . This book was released on 2003 with total page 306 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Phase Transitions and Adsorbate Restructuring at Metal Surface written by D.A. King and published by Newnes. This book was released on 2012-12-02 with total page 660 pages. Available in PDF, EPUB and Kindle. Book excerpt: The objective in initiating this series in 1980 was to provide an in-depth review of advances made in the understanding key aspects of surface chemistry and physics through the application of new techniques to the study of well-defined surfaces. Since then the field of surface science has greatly matured, and further important techniques, particularly scanning probe microscopies, have been successfully assimilated into the applications armoury of the surface scientist. The present volume is a series of timely reviews by many of the current experts in the field of phase transitions and adsorbate-induced surface restructuring. No aspect of the science of solid surfaces can be fully understood without accounting for the structural diversity of surfaces, now revealed in atomic detail by techniques based on diffraction and scanning probe microscopies. For example, it is now clear to those working in heterogeneous catalysis that adsorbate-induced restructuring of surfaces can play a critical role in phenomena such as bistability, kinetic oscillations, and promotion and poisoning. Structural transitions at surfaces can also play a key role in determining the electronic properties of surfaces, reviewed in volume 5.
Download or read book Surface Dynamics written by and published by Elsevier. This book was released on 2003-11-07 with total page 393 pages. Available in PDF, EPUB and Kindle. Book excerpt: While much of traditional surface science has been concerned with equilibrium properties and simple kinetics, there is a growing effort in the area of dynamical processes at surfaces. This book draws together a series of chapters written by acknowledged experts in the field, which describe progress in a range of specific topics. The emphasis is on chemical reaction dynamics, including both theoretical and experimental approaches and covering work on low index single crystal surfaces, on stepped surfaces and on supported metal clusters. Other processes, such as surface diffusion are also addressed. Further chapters discuss dynamical processes in electronically-induced desorption, and in surface diffusion on semiconductors and metals.- Presents considerable advances in surface science field - Collection of expert reviews in surface dynamics
Download or read book Phase Transitions and Adsorbate Restructuring at Metal Surface written by D.A. King and published by . This book was released on 1994-07-05 with total page 668 pages. Available in PDF, EPUB and Kindle. Book excerpt: Contains a series of reviews in the field of phase transitions and adsorbate-induced surface restructuring. The text reveals the structural diversity of surfaces in atomic detail by techniques based on diffraction and scanning probe microscopes.
Download or read book Phase Transitions in Surface Films 2 written by H. Taub and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 505 pages. Available in PDF, EPUB and Kindle. Book excerpt: The Advanced Study Institute (AS I) entitled "Phase Transitions in Surface Films" was held at the Ettore Majorana Centre for Scientific Culture in Erice, Sicily from June 19 to June 29, 1990. It reviewed the present understanding (experimental and theoretical) of phase transitions of surfaces, interfaces, and thin ftlms as well as the related structural and dynamical properties of these systems. From its inception, this ASI was envisioned as a sequel to one of the same title organized eleven years earlier by J. G. Dash and J. Ruvalds which was also held at the Ettore Majorana Centre. The previous ASI reflected the progress which had been made in understanding quasi two-dimensional (2D) states of matter, particularly adsorbed monolayers, and the phase transitions which occur in them. At that time, the field was barely ten years old. The modern field to which we are referring here can be traced to the landmark experiments of A. Thorny and X. Duval. Beginning in 1967, they published a series of papers presenting evidence from vapor pressure measurements of 2D phases of krypton and other gases adsorbed on polycrystalline (exfoliated) graphite. Their work led to a large number of thermodynamic and scattering experiments on physisorbed ftlms. This in turn motivated a great deal of theoretical interest in 2D systems and their phase transitions.
Download or read book Phase Transitions in Surface Films written by J.G. Dash and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 369 pages. Available in PDF, EPUB and Kindle. Book excerpt: The Advanced Study Institute on Phase Transitions in Surface Films was held at the Ettore Majorana Centre for Scientific Cul ture in Erice, Sicily, during June 11 to June 25, 1979. This Institute was the second course of the International School of Low Temperature Physics which was established at the Centre in 1977, with the guidance and inspiration of T. Regge and A. Zichichi. The 1979 course selected a topic on one of the most rapidly advancing fields of condensed matter physics in the late 70's. The program of topics and speakers was developed with the advice of the Organizing Committee, composed of J. Friedel, N. D. Mermin, R. E. Peierls, T. Regge and J. Wheatley. These two weeks were memorable for the range and depth of the lectures and seminars, and the sustained high interest of the students and faculty through a damanding schedule of over 5 hours a day of formal sessions. A large fraction of the leading researchers in the field were there. It would have been impossible to gather such a large group five years earlier, for the field itself is hardly 10 years old. Although the foundations of the thermodynamics of surface films were laid down by Gibbs about 100 years ago, and experiments on oil/water monolayers were carried out by Pockels and Rayleigh at about the same time, the beginnings of the modern field were much more recent.
Download or read book Structural Phase Transitions in Layered Transition Metal Compounds written by K. Motizuki and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 309 pages. Available in PDF, EPUB and Kindle. Book excerpt: The structural phase transition is one of the most fundamental problems in solid state physics. Layered transition-metal dichalcogenides provide us with a most exciting area for the study of structural phase transitions that are associated with the charge density wave (CDW). A large variety of structural phase transitions, such as commensurate and incommensurate transitions, and the physical proper ties related to the formation of a CDW, have been an object of intense study made for many years by methods employing modem microscopic techniques. Rather recently, efforts have been devoted to the theoretical understanding of these experimental results. Thus, McMillan, for example, has developed an elegant phenomenological theory on the basis of the Landau free energy expansion. An extension of McMillan's theory has provided a successful understanding of the successive phase transitions observed in the IT- and 2H-compounds. In addition, a microscopic theory of lattice instability, lattice dynamics, and lattice distortion in the CDW state of the transition-metal dichalcogenides has been developed based on their electronic structures. As a result, the driving force of the CDW formation in the IT- and 2H-compounds has become clear. Furthermore, the effect of lattice fluctuations on the CDW transition and on the anomalous behavior of various physical properties has been made clear microscopically.
Download or read book Diffraction from Rough Surfaces and Dynamic Growth Fronts written by Hong-Ning Yang and published by World Scientific. This book was released on 1993 with total page 244 pages. Available in PDF, EPUB and Kindle. Book excerpt: Designed both for experimentalists who study rough surfaces and the dynamics of thin film growth using diffraction techniques and for theorists who wish to learn of such rough surfaces and dynamic behavior in Fourier space, this monograph quickly brings the readers to forefront research in the area of the dynamics of interface growth. Graduate and advanced undergraduate students as well as those readers who have very little prior knowledge of diffraction can pick up the subject matter with little difficulty.This monograph gives a brief review and summary at the end of each chapter. After the introduction of the elementary theory of diffraction in Chapter I, Chapter II discusses the various parameters and correlation functions that are essential in describing a rough surface. In Chapter III, the authors not only show analytical forms of the diffraction structure factor for both rough crystalline and non-crystalline surfaces, but also outline the methods of extracting the interface width, the lateral correlation length and the roughness parameter from the diffraction structure factor. To present the basic physical concepts underlying the scaling hypothesis during dynamic growth, in Chapter IV, a detailed description of the dynamic scaling properties of the height-height correlation function, the height difference function and the structure factor is given. The structure factor from a dynamic growth front is derived in Chapter V. An example of a quantitative measurement of the dynamic growth front of an epitaxial system is also given in this chapter. In Chapter VI, a particular type of rough surfaces having a diverging interface width associated with an equilibrium surface roughening transition is discussed. A comparison of the diffraction characteristics from divergent and non-divergent interface is also summarized.
Download or read book Basics of Thermodynamics and Phase Transitions in Complex Intermetallics written by Esther Belin-Ferr and published by World Scientific. This book was released on 2008 with total page 408 pages. Available in PDF, EPUB and Kindle. Book excerpt: Complex metal alloys (CMAs) comprise a huge group of largely unknown alloys and compounds, where many phases are formed with crystal structures based on giant unit cells containing atom clusters, ranging from tens of to more than thousand atoms per unit cell. In these phases, for many phenomena, the physical length scales are substantially smaller than the unit-cell dimension. Hence, these materials offer unique combinations of properties which are mutually exclusive in conventional materials, such as metallic electric conductivity combined with low thermal conductivity, good light absorption with high-temperature stability, high metallic hardness with reduced wetting by liquids, etc.This book is the first of a series of books issued yearly as a deliverable to the European Community of the School established within the European Network of Excellence CMA. Written by reputed experts in the fields of metal physics, surface physics, surface chemistry, metallurgy, and process engineering, this book brings together expertise found inside as well as outside the network to provide a comprehensive overview of the current state of knowledge in CMAs.
Download or read book Statics and Dynamics of Alloy Phase Transformations written by Patrice E.A. Turchi and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 725 pages. Available in PDF, EPUB and Kindle. Book excerpt: The study of phase transformations in substitutional alloys, including order disorder phenomena and structural transformations, plays a crucial role in understanding the physical and mechanical properties of materials, and in designing alloys with desired technologically important characteristics. Indeed, most of the physical properties, including equilibrium properties, transport, magnetic, vibrational as well as mechanical properties of alloys are often controlled by and are highly sensitive to the existence of ordered compounds and to the occurrence of structural transformations. Correspondingly, the alloy designer facing the task of processing new high-performance materials with properties that meet specific industrial applications must answer the following question: What is the crystalline structure and the atomic configuration that an alloy may exhibit at given temperature and concentration? Usually the answer is sought in the phase-diagram of a relevant system that is often determined experimentally and does not provide insight to the underlying mechanisms driving phase stability. Because of the rather tedious and highly risky nature of developing new materials through conventional metallurgical techniques, a great deal of effort has been expended in devising methods for understanding the mechanisms contrOlling phase transformations at the microscopic level. These efforts have been bolstered through the development of fully ab initio, accurate theoretical models, coupled with the advent of new experimental methods and of powerful supercomputer capabilities.
Download or read book Phase Transitions and Adsorbate Restructuring at Metal Surfaces written by David Anthony King and published by . This book was released on 1994 with total page 643 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Structural Phase Transitions in Layered Transition Metal Compounds written by K Motizuki and published by . This book was released on 1986-10-31 with total page 316 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Phase Transitions of Simple Systems written by Boris M. Smirnov and published by Springer Science & Business Media. This book was released on 2007-10-24 with total page 249 pages. Available in PDF, EPUB and Kindle. Book excerpt: This monograph develops a unified microscopic basis for phases and phase changes of bulk matter and small systems, based on classical physics. It describes the thermodynamics of ensembles of particles and explains phase transition in gaseous and liquid systems. The origins are derived from simple but physically relevant models of how transitions occur between rigid and fluid states, of how phase equilibria arise, and how they differ for small and large systems.
Download or read book Phase Transitions and Relaxation in Systems with Competing Energy Scales written by T. Riste and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 456 pages. Available in PDF, EPUB and Kindle. Book excerpt: Systems with competing energy scales are widespread and exhibit rich and subtle behaviour, although their systematic study is a relatively recent activity. This text presents lectures given at a NATO Advanced Study Institute reviewing the current knowledge and understanding of this fascinating subject, particularly with regard to phase transitions and dynamics, at an advanced tutorial level. Both general and specific aspects are considered, with competitions having several origins; differences in intrinsic interactions, interplay between intrinsic and extrinsic effects, such as geometry and disorder; irreversibility and non-equilibration. Among the specific physical application areas are supercooled liquids and glasses, high-temperature superconductors, flux or vortex pinning and motion, charge density waves, domain growth and coarsening, and electron solidification.
Download or read book Phase Engineering of Low Dimensional Transition Metal Dichalcogenides written by Bin Ouyang and published by . This book was released on 2017 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: "With the probing of isomorphism within transition metal dichalcogenides (TMDs), there has been a drive to understand potential phase transitions, as well as the associated applications. In this thesis, in order to give theoretical insights into phase engineering, first principle density functional theory (DFT) numerical calculations are performed with the assistance of continuum models such as phonon theory and elastic mechanics. The scope of this thesis covers phase transition thermodynamics, optimization of phase engineering techniques as well as applications of controllable phase transformations. Initially, the mechanism and thermodynamics of phase transition are studied. Diagrams of phase stability are constructed to illustrate the competition among four potential isomorphs within representative MX2 candidates, namely, MoS2, MoSe2, WS2 and WSe2 Furthermore, with the guidance of phase stability diagrams, coupled lattice deformation and electrostatic gating are found to be feasible for experimental design.On the basis of the mechanistic understanding of phase transformation, efforts are also taken on discovering new routes of inducing phase transition. Several potential strategies of triggering phase transition are proposed. To be more specific, GaN (AlN) substrate engineering is found to be effective for manipulating phase stability. The charge transfer from the metal surface to the MX2 is identified as the origin of phase stability transitions. Meanwhile, introducing curvature by bending or rippling MX2s is pointed out to be more effective and experimentally feasible compared with planar deformation. With the assistance of elastic mechanics, the critical curvature radius has been predicted for each group of materials. Additionally, the tunable phase transformation has also been discovered in low dimensional nanostructures such as MoS2 nanotubes. With their extraordinary mechanical properties, phase stability can be further controlled with elastic strain engineering. Finally, with various techniques available to control phase transformation, new applications are ready to be revealed. For example, inherent heterostructures combining two isomorphic phases of the same material are presented with controllable direct band gap. Moreover, with the aid of a revised deformation potential model, the band gap transition under lattice deformation can be well predicted. These findings will serve as useful reference for designing novel optoelectronic devices.With all the studies presented in this thesis, theoretical instructions are provided covering mechanistic understanding, schematic designing and optoelectronic application of phase engineering within TMDs." --
Download or read book Phase Transitions in Surface Films 2 written by H. Taub and published by Springer. This book was released on 1991-11-30 with total page 528 pages. Available in PDF, EPUB and Kindle. Book excerpt: Proceedings of a NATO ASI and International Course held in Erice, Sicily, Italy, June 19--29, 1990
Download or read book Fundamentals of Electrocatalyst Materials and Interfacial Characterization written by Nicolas Alonso-Vante and published by John Wiley & Sons. This book was released on 2019-02-28 with total page 236 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book addresses some essential topics in the science of energy converting devices emphasizing recent aspects of nano-derived materials in the application for the protection of the environment, storage, and energy conversion. The aim, therefore, is to provide the basic background knowledge. The electron transfer process and structure of the electric double layer and the interaction of species with surfaces and the interaction, reinforced by DFT theory for the current and incoming generation of fuel cell scientists to study the interaction of the catalytic centers with their supports. The chief focus of the chapters is on materials based on precious and non-precious centers for the hydrogen electrode, the oxygen electrode, energy storage, and in remediation applications, where the common issue is the rate-determining step in multi-electron charge transfer processes in electrocatalysis. These approaches are used in a large extent in science and technology, so that each chapter demonstrates the connection of electrochemistry, in addition to chemistry, with different areas, namely, surface science, biochemistry, chemical engineering, and chemical physics.
