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Calculated Electronic Properties Of Ordered Alloys
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Book Synopsis Calculated Electronic Properties of Ordered Alloys by : V. L. Moruzzi
Download or read book Calculated Electronic Properties of Ordered Alloys written by V. L. Moruzzi and published by World Scientific. This book was released on 1995 with total page 449 pages. Available in PDF, EPUB and Kindle. Book excerpt: This is a handbook of calculated electronic properties of elements and of 3d/3d and 4d/4d ordered alloys. The book derives the ground-state or equilibrium properties of the metallic elements in both bcc and fcc structures, and of existing and nonexisting ordered binary transition-metal alloys in CsCl, CuAu, and Cu3Au structures by the analysis of binding curves, or total energy vs. volume curves, calculated from first-principles augmented-spherical-wave methods. The calculated properties, energy bands along symmetry lines in the respective Brillouin zones, and the total and I-decomposed density-of-states for each constituent is presented in a convenient single-page format. The calculated quantities presented include lattice constants, total energies, bulk moduli, potential at the nucleus, and charge densities at the nucleus and in the interstitial regions.
Book Synopsis Calculated Electronic Properties Of Ordered Alloys:a Handbook - The Element And Their 3d/3d And 4d/4d Alloys by : C B Sommers
Download or read book Calculated Electronic Properties Of Ordered Alloys:a Handbook - The Element And Their 3d/3d And 4d/4d Alloys written by C B Sommers and published by World Scientific. This book was released on 1995-04-28 with total page 449 pages. Available in PDF, EPUB and Kindle. Book excerpt: This is a handbook of calculated electronic properties of elements and of 3d/3d and 4d/4d ordered alloys. The book derives the ground-state or equilibrium properties of the metallic elements in both bcc and fcc structures, and of existing and nonexisting ordered binary transition-metal alloys in CsCl, CuAu, and Cu3Au structures by the analysis of binding curves, or total energy vs. volume curves, calculated from first-principles augmented-spherical-wave methods. The calculated properties, energy bands along symmetry lines in the respective Brillouin zones, and the total and I-decomposed density-of-states for each constituent is presented in a convenient single-page format. The calculated quantities presented include lattice constants, total energies, bulk moduli, potential at the nucleus, and charge densities at the nucleus and in the interstitial regions.
Book Synopsis Spontaneous Ordering in Semiconductor Alloys by : Angelo Mascarenhas
Download or read book Spontaneous Ordering in Semiconductor Alloys written by Angelo Mascarenhas and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 483 pages. Available in PDF, EPUB and Kindle. Book excerpt: The phenomenonofspontaneous ordering in semiconductoralloys, which can be categorized as a self-organized process, is observed to occur sponta neously during epitaxial growth of certain ternary alloy semiconductors and results in a modification of their structural, electronic, and optical properties. There has been a great dealofinterest in learning how to control this phenome non so that it may be used for tailoring desirable electronic and optical properties. There has been even greater interest in exploiting the phenomenon for its unique ability in providing an experimental environment of controlled alloy statistical fluctuations. As such, itimpacts areasofsemiconductorscience and technology related to the materials science ofepitaxial growth, statistical mechanics, and electronic structure of alloys and electronic and photonic devices. During the past two decades, significant progress has been made toward understanding the mechanisms that drive this phenomenon and the changes in physical properties that result from it. A variety of experimental techniques have been used to probe the phenomenon and several attempts made atproviding theoretical models both for the ordering mechanisms as well as electronic structure changes. The various chapters of this book provide a detailed account of these efforts during the past decade. The first chapter provides an elaborate account of the phenomenon, with an excellent perspective of the structural and elec tronic modifications itinduces.
Book Synopsis Electronic Structure of Alloys, Surfaces and Clusters by : Abhijit Mookerjee
Download or read book Electronic Structure of Alloys, Surfaces and Clusters written by Abhijit Mookerjee and published by CRC Press. This book was released on 2002-11-28 with total page 396 pages. Available in PDF, EPUB and Kindle. Book excerpt: Understanding the electronic structure of solids is a basic part of theoretical investigation in physics. Application of investigative techniques requires the solid under investigation to be "periodic." However, this is not always the case. This volume addresses three classes of "non-periodic" solids currently undergoing the most study: alloys, surfaces and clusters. Understanding the electronic structure of these systems is fundamental not only for the basic science, but also constitutes a very important step in various technological aspects, such as tuning their stabilities, chemical and catalytic reactivities and magnetism. Expert practitioners give an up-to-date account of the field with enough detailed background so that even a newcomer can follow the development. The theoretical framework is discussed in addition to the present status of knowledge in the field. Electronic Structure of Alloys, Surfaces and Clusters also includes an extensive bibliography which provides a comprehensive reading list of work on the topic.
Book Synopsis Calculated Electronic Properties of Metals by : V. L. Moruzzi
Download or read book Calculated Electronic Properties of Metals written by V. L. Moruzzi and published by Elsevier. This book was released on 2013-10-22 with total page 197 pages. Available in PDF, EPUB and Kindle. Book excerpt: Calculated Electronic Properties of Metals covers the significant advances in understanding of condensed systems containing many atoms. This book is divided into five chapters that specifically present electronic property calculations based on three fundamental approximations, namely, the local density treatment of electronic exchange and correlation, the "muffin-tin" approximation, and the neglect of relativistic effects. These approximations limit the range of systems for which these calculations can be expected to be accurate to metals comprised of atoms possessing fewer that approximately 50 protons. A chapter focuses on the calculation of electron and state densities of numerous metals. The concluding chapter describes the results of spin-polarized energy-band calculations for iron, cobalt, and nickel. This book will prove useful to chemists, researchers, and students.
Book Synopsis Electronic Properties of Surfaces by : Prutton
Download or read book Electronic Properties of Surfaces written by Prutton and published by Routledge. This book was released on 2018-02-06 with total page 202 pages. Available in PDF, EPUB and Kindle. Book excerpt: In recent years the availability of techniques and the asking of basic and technological questions has led to an international explosion of activity in the study of solid surfaces. Originally published in Reports in Progress in Physics, Electronic Properties of Surfaces reflects the modern knowledge in this field, presenting critical appraisals of progress in surface science. The book should be particularly valuable for researchers new to this field.
Book Synopsis Lectures On Methods Of Electronic Structure Calculations - Proceedings Of The Miniworkshop On "Methods Of Electronic Structure Calculations" And Working Group On "Disordered Alloys" by : Ole Krogh Andersen
Download or read book Lectures On Methods Of Electronic Structure Calculations - Proceedings Of The Miniworkshop On "Methods Of Electronic Structure Calculations" And Working Group On "Disordered Alloys" written by Ole Krogh Andersen and published by World Scientific. This book was released on 1995-02-23 with total page 396 pages. Available in PDF, EPUB and Kindle. Book excerpt: Developments in the density functional theory and the methods of electronic structure calculations have made it possible to carry out ab-initio studies of a variety of materials efficiently and at a predictable level. This book covers many of those state-of-the-art developments and their applications to ordered and disordered materials, surfaces and interfaces and clusters, etc.
Book Synopsis Electronic Properties of Metals by : Gerd Lehmann
Download or read book Electronic Properties of Metals written by Gerd Lehmann and published by Elsevier Publishing Company. This book was released on 1990 with total page 206 pages. Available in PDF, EPUB and Kindle. Book excerpt: The excitation spectrum or band structure of electronics is often interpreted as the electronic structure. This definition is based on the Landau theory of elementary excitations, which shows that the reaction of a many-particle system on a weak external perturbation can be described by nearly non-interacting low-energy excitations of one-particle type. In metals these excitations close to the Fermi energy are only lightly damped. On this basis many electronic properties, especially of metals, can be understood and calculated, a breakthrough which has made a considerable contribution to materials science. This book focuses on the basic principles of solid state physics and in particular on actual problems and recent applications which have not previously been reviewed. At present a common electron theory for all types of solids is developing, unifying the viewing and treatment of the electronic structure and electronic properties of metals and semiconductors.
Book Synopsis Mechanical, Electronic and Optical Properties of Multi-ternary Semiconductor Alloys by : Dongguo Chen
Download or read book Mechanical, Electronic and Optical Properties of Multi-ternary Semiconductor Alloys written by Dongguo Chen and published by . This book was released on 2013 with total page 114 pages. Available in PDF, EPUB and Kindle. Book excerpt: The ability to obtain tunable properties with composition makes multi-ternary alloys extremely useful for a variety of applications in semiconductor devices and is of significant interest in experimental and theoretical research. This dissertation investigates the mechanical, electronic and optical properties of multi-ternary, i.e., binary, ternary and quaternary, semiconductor alloys using analytical methods and first-principles calculations. For the calculations of mechanical properties, existing models on the average shear modulus of III-V & II-VI binary semiconductors are revised. New expressions are developed for the average Young's modulus as well as the shear modulus and Young's modulus on (111) plane for these compounds. It is found that the proposed models provide a simple and accurate means for predicting the elastic constants of ternary semiconductors. The crystal structures, formation enthalpies and electronic properties of alloys, GaP[subscript X]Sb1−[subscript X], InP[subscript X]Sb1−[subscript X] and CdS[subscript X]Te1−[subscript X], are then investigated using first-principles calculations. These alloys are studied for various structures and compositions. Comparisons between GaP[subscript X] Sb1−[subscript X] and InP[subscript X] Sb1−[subscript X] are made. In the study of CdS[subscript X]Te1−[subscript X] system, negative bowing parameter of spin-orbit splitting is found in the ordered structure while positive value is found in disordered structure. This work also gives a recipe to calculate the properties of Y2 alloys in any degree of crystal ordering. For the partially ordered samples, the trends of the Y2 ordering induced changes in the crystal field splitting and band gap narrowing are explored and explained in terms of the lattice mismatch and band offset between the binary constituents. The Y2 ordering induced change in the spin-orbit splitting is found to be positive and small. Additionally, a model for the pressure dependence of the energy gap of group III-V & II-VI ternary semiconductor alloys is proposed. The trends in the pressure coefficients with respect to nearest neighbor distance and ionicity are discussed. Finally, the electronic and optical properties of Cu2ZnGeS4, Cu2ZnGeSe4 and Cu2ZnGeTe4 in KS and ST structures are studied. Band structure and optical spectra including the dielectric function, refractive index, absorption coefficient and reflectivity are determined. The critical points in the optical spectra are assigned to the interband transitions in accord with the calculated band structures. The trends of these properties with respect to crystal structures and VI (S, Se and Te) anion atoms are explored qualitatively.
Book Synopsis Scientific and Technical Aerospace Reports by :
Download or read book Scientific and Technical Aerospace Reports written by and published by . This book was released on 1994 with total page 568 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Computational Materials Science by : Kaoru Ohno
Download or read book Computational Materials Science written by Kaoru Ohno and published by Springer. This book was released on 2018-04-14 with total page 433 pages. Available in PDF, EPUB and Kindle. Book excerpt: This textbook introduces modern techniques based on computer simulation to study materials science. It starts from first principles calculations enabling to calculate the physical and chemical properties by solving a many-body Schroedinger equation with Coulomb forces. For the exchange-correlation term, the local density approximation is usually applied. After the introduction of the first principles treatment, tight-binding and classical potential methods are briefly introduced to indicate how one can increase the number of atoms in the system. In the second half of the book, Monte Carlo simulation is discussed in detail. Problems and solutions are provided to facilitate understanding. Readers will gain sufficient knowledge to begin theoretical studies in modern materials research. This second edition includes a lot of recent theoretical techniques in materials research. With the computers power now available, it is possible to use these numerical techniques to study various physical and chemical properties of complex materials from first principles. The new edition also covers empirical methods, such as tight-binding and molecular dynamics.
Book Synopsis Electronic Properties of Nanoclusters in Amorphous Materials by : Mikio Fukuhara
Download or read book Electronic Properties of Nanoclusters in Amorphous Materials written by Mikio Fukuhara and published by Cambridge Scholars Publishing. This book was released on 2019-09-17 with total page 157 pages. Available in PDF, EPUB and Kindle. Book excerpt: Nanometre-sized clusters (nanoclusters) that make up amorphous materials (metallic alloys and organic and inorganic compounds) cast new light on the science and technology of this century. However, because various electronic characteristics of nanoclusters have been discovered during the past decade, there have been few publications concerned with the electronic properties of nanoclusters. This book presents a detailed study of these properties, beginning with their basic characteristics (from alloy synthesis to the electronic rule for the formation of amorphous alloys) to more technical aspects (such as new single electron transistors, superior ballistic conduction).
Book Synopsis II-VI Semiconductor Materials and their Applications by : MariaC. Tamargo
Download or read book II-VI Semiconductor Materials and their Applications written by MariaC. Tamargo and published by Routledge. This book was released on 2018-05-04 with total page 382 pages. Available in PDF, EPUB and Kindle. Book excerpt: II-VI Semiconductor Materials and Their Applications deals with II-VI compound semiconductors and the status of the two areas of current optoelectronics applications: blue-green emitters and IR detectors. Specifically, the growth, charactrtization, materials and device issues for these two applications are described. Emphasis is placed on the wide bandgap emitters where much progress has occurred recently.The book also presents new directions that have potential, future applications in optoelectronics for II-VI materials. In particular, it discusses the status of dilute magnetic semiconductors for mango-optical and electromagnetic devices, nonlinear optical properties, photorefractive effects and new materials and physics phenomena, such as self-organized, low-dimensional structures.II_VI Semiconductor Materials and Their Applications is a valuable reference book for researchers in the field as well as a textbook for materials science and applied physics courses.
Book Synopsis Nanomaterials for Security by : Janez Bonča
Download or read book Nanomaterials for Security written by Janez Bonča and published by Springer. This book was released on 2016-07-20 with total page 337 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book comprises 25 contributions focussed on nanotechnology for sensor applications. They stem from presentations at the NATO Advanced Research Workshop "Nanomaterials for Security". The chapters cover a broad but interrelated range of topics, including nanophysics, nanotechnology, nanomaterials, sensors, biosensor security systems, and explosive detection. They reflect many significant advances over the past two years as well as some entirely new directions of research that are just beginning to be explored.
Download or read book Physics Briefs written by and published by . This book was released on 1992 with total page 820 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Electronic Density of States by : Lawrence Herman Bennett
Download or read book Electronic Density of States written by Lawrence Herman Bennett and published by . This book was released on 1971 with total page 840 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Band Structure Engineering in Semiconductor Microstructures by : R.A. Abram
Download or read book Band Structure Engineering in Semiconductor Microstructures written by R.A. Abram and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 383 pages. Available in PDF, EPUB and Kindle. Book excerpt: This volume contains the proceedings of the NATO Advanced Research Workshop on Band Structure Engineering in Semiconductor Microstructures held at Il Ciocco, Castelvecchio Pascali in Tuscany between 10th and 15th April 1988. Research on semiconductor microstructures has expanded rapidly in recent years as a result of developments in the semiconductor growth and device fabrication technologies. The emergence of new semiconductor structures has facilitated a number of approaches to producing systems with certain features in their electronic structure which can lead to useful or interesting properties. The interest in band structure engineering has stimd ated a variety of physical investigations and nove 1 device concepts and the field now exhibits a fascinating interplay betwepn pure physics and device technology. Devices based on microstruc tures are useful vehicles for fundamental studies but also new device ideas require a thorough understanding of the basic physics. Around forty researchers gathered at I1 Ciocco in the Spring of 1988 to discuss band structure engineering in semiconductor microstructures.
